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Ieda, JP

Hidenori Ieda, Fukuoka-Shi JP

Patent application numberDescriptionPublished
20080226487Nickel powder, method for manufacturing same, conductor paste, and multilayer ceramic electronic component using same - A nickel powder with an average particle size of 0.05 to 1.0 μm, which is composed of nickel particles having an oxidized surface layer and containing sulfur, wherein the sulfur content with respect to the total weight of the powder is 100 to 2000 ppm, and the intensity of a peak identified to sulfur bonded to nickel in surface analysis by ESCA of the nickel particles varies in a direction toward the center from the surface of the particles, and this intensity has its maximum at a location deeper than 3 nm from the particle outermost surface. This nickel powder is manufactured by bringing a nickel powder containing sulfur and dispersed in a non-oxidizing gas atmosphere into contact with an oxidizing gas at a high temperature.09-18-2008
20120114945NICKEL POWDER, METHOD FOR MANUFACTURING SAME, CONDUCTOR PASTE, AND MULTILAYER CERAMIC ELECTRONIC COMPONENT USING SAME - A nickel powder with an average particle size of 0.05 to 1.0 μm, which is composed of nickel particles having an oxidized surface layer and containing sulfur, wherein the sulfur content with respect to the total weight of the powder is 100 to 2000 ppm, and the intensity of a peak identified to sulfur bonded to nickel in surface analysis by ESCA of the nickel particles varies in a direction toward the center from the surface of the particles, and this intensity has its maximum at a location deeper than 3 nm from the particle outermost surface. This nickel powder is manufactured by bringing a nickel powder containing sulfur and dispersed in a non-oxidizing gas atmosphere into contact with an oxidizing gas at a high temperature.05-10-2012

Katsumasa Ieda, Saitama JP

Patent application numberDescriptionPublished
20120292948COWLING STRUCTURE OF RIDING-TYPE VEHICLE - A cowling structure includes a head pipe mounted to the front of a body frame, a steering gear held such that it is capable of pivoting about the axis of the head pipe, side cowls each arranged at the transverse outside of the body frame, together with an opening so formed in each side cowl that it communicates with the transverse outside and inside of each side cowl. When viewed in a side view, the side cowls are lengthened up to the fore of the head pipe, and the opening is in such a position that it is level with the head pipe and overlaps with the steering gear in the fore of the head pipe. Such cowling structure permits less damages to the external appearance while providing the improvement in the lightness of banking at the time in the early stage of turning of a vehicle body.11-22-2012

Kazuhiro Ieda, Hirakata-Shi JP

Patent application numberDescriptionPublished
20100195847VEHICLE-MOUNTED SYSTEM, NAVIGATION DEVICE, AND REPRODUCING DEVICE - In order to improve operability of two devices which function in an integrated manner and also function separately in a standalone mode, a navigation device switches an output of an audio signal to a reproducing device during a time when an electrical connection with the reproducing device is being detected (S05), and switches the output of the audio signal to a built-in speaker by switching means during a time when the electrical connection with the reproducing device is not being detected (S11). The reproducing device mixes audio signals simultaneously input from one of a disc reproducing device and a radio receiving portion and from the navigation device during a time when the electrical connection with the navigation device is being detected, and processes the audio signal input from one of the disc reproducing device and the radio receiving portion during a time when the electrical connection with the navigation device is not being detected.08-05-2010
20100220870VEHICLE-MOUNTED SYSTEM, NAVIGATION DEVICE, AND REPRODUCING DEVICE - In order to improve operability of two devices which function in an integrated manner and also function separately in a standalone mode, a navigation device includes a first connection status detecting portion (S09-02-2010

Kazuhiro Ieda, Osaka JP

Patent application numberDescriptionPublished
20090262253DIGITAL BROADCAST RECEIVER - [Object] To provide a digital broadcast receiver capable of performing a channel scan in a relatively short time.10-22-2009

Kiyokazu Ieda, Aichi JP

Patent application numberDescriptionPublished
20080290668Apparatus for Opening and Closing Vehicle Door - There is provided an apparatus for opening and closing a vehicle door that is exceptionally durable and performs indications so that a person can reliably recognize a locked or unlocked state of a vehicle door.11-27-2008
20110260831DOOR HANDLE AND LOCKING SYSTEM FOR VEHICLE - Provided is a door handle for a vehicle that can eliminate wiring between a circuit mounted on a vehicle including a door panel having the vehicle door handle and a circuit mounted within this door handle, so that the door handle can be provided as an independent unit. The door handle for a vehicle, is configured to authenticate a mobile device carried by a user through wireless communication between this mobile device and the vehicle and to control locking/unlocking of a vehicle door based on detection of presence/absence of an operation by the user of commanding a predetermined locking/unlocking operation. The door handle includes an operation detecting unit for detecting an operation on the vehicle door handle as an operation commanding locking/unlocking to the vehicle, a transmitter antenna having sensitivity in a predetermined frequency range, a transmitter unit configured to modulate result of detection by said operation detecting unit with using a carrier wave having the predetermined frequency range and transmitting the detection result to the vehicle via said transmitter antenna, a battery for supplying power to the operation detecting unit and the transmitter unit, and a housing configured to accommodate therein the operation detecting unit, the transmitter antenna, the transmitter unit and the battery altogether, without any wires extending to the outside of the housing.10-27-2011

Kiyokazu Ieda, Aichi-Ken JP

Patent application numberDescriptionPublished
20080256755Vehicle Handle - A vehicle handle (10-23-2008
20100192329DOOR HANDLE DEVICE - A door handle device capable of operating a door opening/closing mechanism of a vehicle is disclosed. The door handle device includes a support member, a door handle, a circuit substrate, a lock detection electrode, a capacitance sensor, and an auxiliary electrode. The circuit substrate is arranged in the door handle and includes a ground electrode. The lock detection electrode is mounted on the circuit substrate and capacitance-coupled to an outer panel of the door. The capacitance sensor is connected to the lock detection electrode and detects the issuance of a door lock command based on a change in a first capacitance between the outer panel and the lock detection electrode. The auxiliary electrode is capacitance-coupled to the ground electrode to form a second capacitance connected in parallel to the first capacitance between the auxiliary electrode and the ground electrode.08-05-2010
20110140479ELECTROMAGNETIC COUPLING DEVICE, AND DOOR HANDLE AND VEHICLE DOOR HAVING ELECTROMAGNETIC COUPLING DEVICE - A technique for realizing effective transmission between a door handle and a vehicle door is provided. The present invention teaches an electromagnetic coupling device electromagnetically connecting a door handle side circuit 06-16-2011

Patent applications by Kiyokazu Ieda, Aichi-Ken JP

Kuniyo Ieda, Tokyo JP

Patent application numberDescriptionPublished
20110320117NAVIGATION SYSTEM - Including a vehicle position determining unit (12-29-2011
20120109516NAVIGATION APPARATUS - A navigation apparatus is provided that is highly convenient for a user to view a map screen and a menu window. A display controller 05-03-2012
20120173245NAVIGATION SYSTEM - A navigation system is provided which facilitates discrimination between an icon of a facility associated with a route, along which the user is expected to move from now on, and an ordinary icon. To achieve this, it includes a destination estimating unit for acquiring information about a driving history and for estimating a destination from the information about the driving history acquired; a drawing decision changing unit for drawing a destination candidate estimated by the destination estimating unit in a form different from an icon of a non-destination candidate; and an information display unit for causing the icon drawn by the drawing decision changing unit to be displayed.07-05-2012
20120179365NAVIGATION SYSTEM - A navigation system capable of enabling a user to use navigation functions such as route guidance without setting a destination. It includes an information recording unit for storing a driving history, a destination estimating unit for estimating a destination from the driving history stored in the information recording unit, a route computing unit for calculating a route to the destination estimated by the destination estimating unit, and an information display unit for causing the route calculated by the route computing unit to be displayed.07-12-2012
20120271830DATA PROCESSING DEVICE - Disclosed is a data processing device including a data acquisition unit for acquiring data from a medium, an integrated database for integrating the data acquired by the data acquisition unit thereinto, a data analysis determination unit for analyzing the data integrated into the integrated database, a display control unit for creating an image of a side view of and an image of a bottom view of a solid expressing the data integrated into the integrated database on the basis of an analysis result acquired by the data analysis determination unit and the data, and a display unit for displaying the images created by the display control unit.10-25-2012
20120287279PARKING SUPPORT APPARATUS - A parking support apparatus includes: a vehicle position locating control unit for locating a present position; a parking support database in which a guideline to be displayed at parking is registered for each parking space; cameras for shooting surroundings; a parking support screen generating unit for acquiring, when parking in a parking space placed at the position located by the vehicle position locating control unit, the guideline corresponding to the parking space from the parking support database, and for generating a parking support screen by superposing the guideline upon an image or images taken with the cameras; and a display unit for displaying the parking support screen created by the parking support screen generating unit. Accordingly, it can offer a parking support apparatus capable of displaying the optimum parking support image corresponding to a parking space and improving convenience.11-15-2012

Masahiro Ieda, Ooamishirasato JP

Patent application numberDescriptionPublished
20080259267Liquid crystal display device - A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.10-23-2008
20090268148Liquid crystal display device - A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.10-29-2009
20110080537Liquid crystal display device - A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.04-07-2011

Patent applications by Masahiro Ieda, Ooamishirasato JP

Masahiro Ieda, Tokyo JP

Patent application numberDescriptionPublished
20100142734VEHICLE-MOUNTED THREE DIMENSIONAL SOUND FIELD REPRODUCING UNIT - In correspondence with the left and right external ears of a listener occupying a seat, a three dimensional sound field reproducing unit includes at least more than two speakers disposed on a headrest on the top of a backrest of the seat, and three dimensional signal processing means which converts an output signal from a sound source into a three dimensional sound field signal for supplying it to each of the speakers. Three dimensional sound field with high accuracy and fidelity is reproduced near the external ears of the listener.06-10-2010

Norikazu Ieda, Nagoya-Shi JP

Patent application numberDescriptionPublished
20110199709SENSOR CONTROL APPARATUS AND SENSOR CONTROL METHOD - A sensor control apparatus (08-18-2011

Norikazu Ieda, Ichinomiya-Shi JP

Patent application numberDescriptionPublished
20080196489DIAGNOSTIC METHOD AND CONTROL APPARATUS FOR GAS SENSOR - A gas sensor diagnostic method (or apparatus) is arranged to periodically obtain sensor output values of a gas sensor such as an oxygen sensor for an internal combustion engine, and to determine local extreme values from the sensor output values obtained during a period of interruption of fuel supply to the engine. Moreover, the local extreme values are compared with a first predetermined threshold level. When the number of the local extreme values reaches a predetermined first number, a diagnosis is performed to determine whether the gas sensor is in an improper condition or not, in accordance with results of the comparison of the local extreme values with the first threshold level.08-21-2008
20080196490DIAGNOSTIC METHOD AND APPARATUS FOR GAS SENSOR - A gas sensor diagnostic method includes the steps of counting the reversal number of times that a target air-fuel ratio for an air-fuel mixture to be supplied to an internal combustion engine reverses from a rich side to a lean side or from the lean side to the rich side through a specific air-fuel ratio defined as a boundary of the rich and lean sides; obtaining a detection signal of a gas sensor at constant time intervals during a diagnosis period between a timing when the count for the reversal number is started and a timing when the reversal number reaches a predetermined number; calculating a moderated signal by applying a moderation calculation using a predetermined moderation coefficient to the obtained detection signal; calculating a deviation between the obtained detection signal and the calculated moderated signal; and determining whether the gas sensor is in an abnormal state or not on the basis of the deviation.08-21-2008
20080196702DIAGNOSTIC METHOD AND CONTROL APPARATUS FOR GAS SENSOR - A gas sensor diagnostic method includes: a fuel supply detecting step of detecting an interruption of a fuel supply to the internal combustion engine, and a restart of the fuel supply after the interruption of the fuel supply; a response time period accumulating step of determining a response time period by accumulating a first time period that the sensor output value reaches from a first threshold value to a second threshold value after the detection of the interruption of the fuel supply, and a second time period that the sensor output value reaches from a third threshold value to a fourth threshold value after the detection of the restart of the fuel supply after the interruption of the fuel supply; and an abnormal state diagnosing section of determining an abnormal state of the gas sensor when the response time period is greater than a predetermined time period.08-21-2008
20090084172Diagnostic method and apparatus for gas sensor - A gas sensor diagnostic method includes the steps of counting the reversal number of times that a target air-fuel ratio for an air-fuel mixture to be supplied to an internal combustion engine reverses from a rich side to a lean side or from the lean side to the rich side through a specific air-fuel ratio defined as a boundary of the rich and lean sides; obtaining a detection signal of gas sensor at constant time intervals during a diagnosis period between a timing when the count for the reversal number is started and a timing when the reversal number reaches a predetermined number; calculating a first moderated signal by applying a first moderation calculation to the detection signal, and a second moderated signal by applying a second moderation calculation to the detection signal; calculating a deviation between the first and second moderated signals; and determining whether the gas sensor is in the abnormal state on the basis of the deviation obtained during the diagnosis period.04-02-2009
20100122568GAS SENSOR SYSTEM AND METHOD FOR CONTROLLING GAS SENSOR - A gas sensor system including a gas sensor; a current control unit; a constant control unit; and a temperature acquisition unit. The gas sensor includes a measurement chamber, a pump cell and an electromotive force cell. The current control unit performs feedback control on current flowing through the pump cell in response to the voltage of the electromotive force cell and in accordance with a control constant which characterizes the feedback control. Further, the constant control unit changes the control constant of the feedback control in accordance with a value (for example, a resistance value of the electromotive force cell) corresponding to the temperature of the gas sensor.05-20-2010
20100133116GAS SENSOR CONTROL DEVICE AND GAS SENSOR CONTROL METHOD - A gas sensor control apparatus 06-03-2010
20120001641GAS SENSOR CONTROL APPARATUS AND METHOD - A gas sensor control apparatus (01-05-2012

Patent applications by Norikazu Ieda, Ichinomiya-Shi JP

Norikazu Ieda, Aichi JP

Patent application numberDescriptionPublished
20090095052SENSOR CONTROL DEVICE AND AIR FUEL RATIO DETECTING APPARATUS - A gas sensor apparatus 04-16-2009
20100050743GAS CONCENTRATION DETECTION APPARATUS AND GAS CONCENTRATION DETECTION SYSTEM - A gas concentration detection apparatus and system including a gas sensor. Voltage Vd generated across detection resistor Rd through which pump current Ip flows is differentially amplified by OP03-04-2010

Patent applications by Norikazu Ieda, Aichi JP

Osamu Ieda, Tokyo JP

Patent application numberDescriptionPublished
20100173241POSITIVELY-CHARGEABLE TONER FOR DEVELOPING ELECTROSTATIC IMAGE - The present invention is to provide a positively-chargeable toner for developing electrostatic images which is applicable to a toner replenishment-type image forming device, is excellent in charge stability of toners and initial charging speed and thus producing less initial fog and being less likely to cause filming on photosensitive members upon replenishment of toners, can impart a stable charging ability to toner particles over time, and thus hardly causes deterioration of image quality due to fog or the like, and therefore is excellent in printing durability even if continuous printing of a large number of prints is performed. A positively-chargeable toner for developing electrostatic images comprising colored resin particles containing a binder resin, a colorant and a charge control agent, and an external additive, wherein the external additive contains fatty acid alkali metal salt particles or fatty acid alkaline earth metal salt particles having a number average primary particle diameter of 0.1 to 1 μm, and a content of the fatty acid alkali metal salt particles or the fatty acid alkaline earth metal salt particles is in the range from 0.01 to 0.5 parts by weight with respect to 100 parts by weight of the colored resin particles.07-08-2010
20100330488POSITIVELY-CHARGEABLE TONER FOR DEVELOPING ELECTROSTATIC IMAGES - The present invention is to provide a positively-chargeable toner for developing electrostatic images, which is excellent in reproductivity of thin lines and in durability and has a stable charging ability and flowability over time. A positively-chargeable toner comprises a colored resin particle and external additives, wherein a spherical colloidal silica particle having a number average primary particle diameter of 30 to 80 nm and a triboelectric charge amount of −50 to +300 μC/g, and a fumed silica particle having a number average primary particle diameter of 5 to 25 nm are contained as the external additives, and wherein a content of the spherical colloidal silica particle is in the range from 0.3 to 2 parts by weight and a content of the fumed silica particle is in the range from 0.1 to 1 parts by weight with respect to 100 parts by weight of the colored resin particle.12-30-2010
20100330490POSITIVELY-CHARGEABLE TONER FOR DEVELOPING ELECTROSTATIC IMAGE - A positively-chargeable toner for developing electrostatic images which can prevent damage of photosensitive members and filming due to an external additive, can impart a stable charge property and flowability to toner particles over time, and thus hardly causes deterioration of image quality due to fog, blur, white streaks or the like, and therefore is excellent in printing durability even if continuous printing of plural prints is performed is provided. A positively-chargeable toner for developing electrostatic images of the present invention is a positively-chargeable toner for developing electrostatic images comprising colored resin particles containing a colorant and a binder resin, and an external additive, wherein the external additive contains magnesium silicate having negatively charging ability, with a Mohs hardness of 3 or less and a number average primary particle diameter in the range from 1 to 15 μm.12-30-2010

Sadayoshi Ieda, Kanagawa JP

Patent application numberDescriptionPublished
20120243251LATERAL LIGHT EMITTING DEVICE AND METHOD OF PRODUCING THE SAME - A lateral light emitting device is developed. The lateral light emitting device is free from variations and degradation in beam quality and reduction in reliability caused by adhesive, can be easily produced, and has a small outer diameter in order to be usable for a thin blood vessel and the like. The above described problem is solved by the lateral light emitting device, which includes an optical fiber, a rod lens fused to an end of the optical fiber, and a prism having a polygonal section fused to a distal end surface of the rod lens.09-27-2012

Seiji Ieda, Tokyo JP

Patent application numberDescriptionPublished
20100243644INSULATED STRUCTURE OF INDUCTION HEATING COIL - It was learned that in an insulation heating coil used for continuously heating a running steel sheet, the conventional insulated structure of the induction heating coil was selected focusing on the heat resistance and insulation ability of the insulation itself and cannot prevent a drop in insulation ability due to entry of fine metal particles (for example, zinc fumes) in the surroundings.09-30-2010

Shingo Ieda, Nagoya-Shi JP

Patent application numberDescriptionPublished
20110300753PLUG CONVERSION ADAPTOR - A conversion adaptor enables utilization of a standardized charge cable used when a power storage device mounted on an electrically-powered vehicle is charged by a power source provided outside of the vehicle as a universal cable for transmitting electric power to electric loads having different plug shapes that are respectively standardized from one region to another. Conversion adaptor includes a primary side connector unit configured to be connectable to a connector of charge cable, a secondary side connector unit configured so as to have a plug of an electric load, such as a home electric appliance, connected thereto, and a manipulating unit for manipulating a CCID of charge cable so that relays are switched off when connector of charge cable is connected to first connector unit.12-08-2011

Shingo Ieda, Toyota-Shi JP

Patent application numberDescriptionPublished
20120091958VEHICLE, CHARGING CABLE, AND CHARGING SYSTEM FOR VEHICLE - In a charging system for a vehicle for charging a power storage device, including the vehicle having the power storage device, and a charging cable for transmitting electric power supplied from an external power supply outside of the vehicle to the power storage device, charging information about charging performed by a charging device is set based on a signal generated by operation of an operation switch provided on a charging connector. This configuration can improve operability during charging.04-19-2012
20120133326CHARGING SYSTEM - A charging system includes a locking device locking a connector provided at the end of a cable in the state where the connector is connected to an inlet provided in a vehicle; a release button for releasing locking by the locking device; a switch generating a signal indicating that the connector and the inlet are connected; a horn; and an ECU. In response to the operation of the release button, the switch stops generation of the signal. The ECU controls charging of a power storage device and detects whether the signal is issued or not. In the case where the ECU detects that generation of the signal is stopped during charging of the power storage device, the ECU causes the horn to issue an alarm.05-31-2012

Shinji Ieda, Tokyo JP

Patent application numberDescriptionPublished
20110028614POLYAMIDE, POLYAMIDE COMPOSITION, AND METHOD FOR PRODUCING POLYAMIDE - The present invention relates to a polyamide obtainable by polymerizing an (a) dicarboxylic acid comprising at least 50 mol % of an alicyclic dicarboxylic acid and a (b) diamine comprising at least 50 mol % of a diamine having a substituent branched from a main chain.02-03-2011
20110112237THERMOPLASTIC COMPOSITION - A thermoplastic resin composition comprising: 20 to 60 parts by mass of a styrene-based resin (A) in which a content of an unsaturated nitrile-based monomer is from 32 to 50 mass %; 20 to 60 parts by mass of an aromatic polyester (B) in which an isothermal crystallization time from the molten state is from 25 to 100 sec; and 20 to 60 parts by mass of a filler (C).05-12-2011

Shinji Ieda, Chiyoda-Ku JP

Patent application numberDescriptionPublished
20120165466POLYAMIDE AND POLYAMIDE COMPOSITION - [Problem to be Solved]06-28-2012

Takashi Ieda, Aichi JP

Patent application numberDescriptionPublished
20100219051Vehicle Turn Signal Device - A turn signal device for a vehicle for activating a turn signal in accordance with operation of an operation lever. The turn signal device includes a turning state detection unit, which detects a turning state of the vehicle. The turning state detection unit monitors a temporal change in the turning state of the vehicle after the turn signal is activated. The turning state detection unit deactivates the turning signal when detecting that the vehicle first turns in an activation direction of the turn signal, then turns in a direction opposite to the activation direction, and afterward turns again in the activation direction.09-02-2010
20100308988Turn Signal Illumination Controller - A turn signal illumination controller monitors the lateral movement distance of a vehicle from when a turn switch lever is operated so as to illuminate a turn signal indicator. When the lateral movement distance is greater than or equal to a threshold value indicating completion of lane changing, the turn signal illumination controller cancels the turn signal indicator.12-09-2010

Tomoaki Ieda, Osaka JP

Patent application numberDescriptionPublished
20100166436OPTICAL TRANSMITTER CIRCUIT - A peaking current generating section (07-01-2010
20110103069OPTICAL EMITTING MODULE - An optical emitting module includes a light-emitting device that emits light, and a lens member having a refracting surface configured to refract light emitted from the light-emitting device and to emit refracted light. The lens member is configured such that, when the angle of a light beam emitted from the lens member with respect to a principal light axis is θ05-05-2011
20110150493OPTICAL MODULE - A light module 06-23-2011

Patent applications by Tomoaki Ieda, Osaka JP

Yasuyuki Ieda, Mishima-Gun JP

Patent application numberDescriptionPublished
20120126282SEALANT FOR OPTICAL SEMICONDUCTORS AND OPTICAL SEMICONDUCTOR DEVICE - The present invention provides a sealant for an optical semiconductor device which has high gas barrier property against corrosive gas, and is less likely to crack or is less likely to peel off even when used in harsh environments.05-24-2012

Yoshinori Ieda, Fuchu JP

Patent application numberDescriptionPublished
20120273773SEMICONDUCTOR DEVICE - Provided is a semiconductor device which has low power consumption and can operate at high speed. The semiconductor device includes a memory element including a first transistor including crystalline silicon in a channel formation region, a capacitor for storing data of the memory element, and a second transistor which is a switching element for controlling supply, storage, and release of charge in the capacitor. The second transistor is provided over an insulating film covering the first transistor. The first and second transistors have a source electrode or a drain electrode in common.11-01-2012

Yoshinori Ieda, Atsugi JP

Patent application numberDescriptionPublished
20080315286SEMICONDUCTOR DEVICE - A decease in reliability of a memory element having a floating gate is suppressed. The invention relates to a semiconductor device having an island-like semiconductor film, which is formed over an insulating surface and includes a channel formation region and a high-concentration impurity region, a tunneling insulating film formed over the island-like semiconductor film, a floating gate formed over the tunneling insulating film, a gate insulating film formed over the floating gate, a control gate formed over the gate insulating film, and a first insulating film formed between the tunneling insulating film and the floating gate. The first insulating film is formed of an oxide film of the material of the floating gate, so that the material of the floating gate is prevented from diffusing into the tunneling insulating film.12-25-2008
20110114941DEVICE INCLUDING NONVOLATILE MEMORY ELEMENT - A device including a novel nonvolatile memory element is provided. A device including a nonvolatile memory element in which an oxide semiconductor is used as a semiconductor material for a channel formation region. The nonvolatile memory element includes a control gate, a charge accumulation layer which overlaps with the control gate with a first insulating film provided therebetween, and an oxide semiconductor layer formed using an oxide semiconductor material, which overlaps with the charge accumulation layer with a second insulating film provided therebetween.05-19-2011
20110156023SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF - In a semiconductor device using a nonvolatile memory, high speed erasing operation and low power consumption are realized. In a nonvolatile memory in which a channel formation region, a tunnel insulating film, and a floating gate are stacked in this order, the channel formation region is formed using an oxide semiconductor layer. In addition, a metal wiring for erasing is provided in a lower side of the channel formation region so as to face the floating gate. With the above structure, when erasing operation is performed, charge accumulated in the floating gate is extracted to the metal wiring through the channel formation region. Consequently, high speed erasing operation and low power consumption of the semiconductor device can be realized.06-30-2011
20110176355SEMICONDUCTOR DEVICE AND DRIVING METHOD THEREOF - A semiconductor device has a non-volatile memory cell including a write transistor which includes an oxide semiconductor and has small leakage current in an off state between a source and a drain, a read transistor including a semiconductor material different from that of the write transistor, and a capacitor. Data is written or rewritten to the memory cell by turning on the write transistor and applying a potential to a node where one of a source electrode and drain electrode of the write transistor, one electrode of the capacitor, and a gate electrode of the read transistor are electrically connected to one another, and then turning off the write transistor so that the predetermined amount of charge is held in the node.07-21-2011
20110297928SEMICONDUCTOR DEVICE - The semiconductor device is provided in which a plurality of memory cells each including a first transistor, a second transistor, and a capacitor is arranged in matrix and a wiring (also referred to as a bit line) for connecting one of the memory cells and another one of the memory cells and a source or drain region in the first transistor are electrically connected through a conductive layer and a source or drain electrode in the second transistor provided therebetween. With this structure, the number of wirings can be reduced in comparison with a structure in which the source or drain electrode in the first transistor and the source or drain electrode in the second transistor are connected to different wirings. Thus, the integration degree of a semiconductor device can be increased.12-08-2011
20110298027SEMICONDUCTOR DEVICE - It is an object to provide a semiconductor device with a novel structure in which stored data can be held even when power is not supplied and there is no limitation on the number of writings. A semiconductor device includes a second transistor and a capacitor provided over a first transistor. A source electrode of the second transistor which is in contact with a gate electrode of the first transistor is formed using a material having etching selectivity with respect to the gate electrode. By forming the source electrode of the second transistor using a material having etching selectivity with respect to the gate electrode of the first transistor, a margin in layout can be reduced, so that the degree of integration of the semiconductor device can be increased.12-08-2011
20110316057WIRING BOARD, SEMICONDUCTOR DEVICE, AND MANUFACTURING METHODS THEREOF - It is an object to reduce defective conduction in a wiring board or a semiconductor device whose integration degree is increased. It is another object to manufacture a highly reliable wiring board or semiconductor device with high yield. In a wiring board or a semiconductor device having a multilayer wiring structure, a conductive layer having a curved surface is used in connection between conductive layers used for the wirings. The top of a conductive layer in a lower layer exposed by removal of an insulating layer therearound has a curved surface, so that coverage of the conductive layer in the lower layer with a conductive layer in an upper layer stacked thereover can be favorable. A conductive layer is etched using a resist mask having a curved surface, so that a conductive layer having a curved surface is formed.12-29-2011