| SEIKO INSTRUMENTS INC. Patent applications |
| Patent application number | Title | Published |
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| 20110286312 | MAGNETICALLY INSENSITIVE, HIGHLY HARD AND CONSTANT-MODULUS ALLOY, AND ITS PRODUCTION METHOD, AS WELL AS HAIR SPRING, MECHANICAL DRIVING APPARATUS AND WATCH AND CLOCK - [Task] A constant-modulus alloy, which has a low saturation magnetic flux density to provide weakly magnetic properties, a high Young's modulus, a low temperature coefficient of Young's modulus, and high hardness, is provided. A hairspring, a mechanical driving apparatus and a watch and clock, in which the alloy is used, are provided. | 11-24-2011 |
| 20110204746 | DRIVING MODULE, AND ELECTRONIC APPARATUS INCLUDING THE SAME - Disclosed are a driving module and an electronic apparatus including the same, which are capable of performing satisfactory driving even under high-temperature environment and of being miniaturized. The driving module ( | 08-25-2011 |
| 20110193781 | MOUSE DEVICE - Provided is a convenient mouse device having low power consumption. The mouse device has a configuration in which an optical sensor for light shielding detection is provided in a region where a hand blocks light when the hand handles the mouse device so that the mouse device may perform a normal operation when the optical sensor for light shielding detection is shielded from light, and may perform a low consumption operation when the optical sensor for light shielding detection is not shielded from light. | 08-11-2011 |
| 20110141861 | NEAR-FIELD LIGHT HEAD AND INFORMATION RECORDING/REPRODUCING DEVICE - A near-field light head of the present invention includes: a slider disposed opposite to a surface of the magnetic recording medium; a recording element that includes a main magnetic pole generating the recording magnetic field and a subsidiary magnetic pole, the recording element being fixed to an apical surface of the slider so that the main magnetic pole and the subsidiary magnetic pole line up in a longitudinal direction of the slider in the state where the subsidiary magnetic pole is located at the apical surface of the slider; a near-field light generating element, fixed adjacently to the main magnetic pole in a state where another end side thereof is directed to the magnetic recording medium, that propagates the light flux introduced from one end side thereof toward the other end side to generate the near-field light, and radiates the near-field light from the other end side to the outside; and a light flux introducing device, fixed to the slider, that introduces the light flux from the one end side into the near-field light generating element. The near-field light generating element includes an inclined surface, which is inclined with respect to an optical axis of the light flux propagated through the inside thereof and is opposite to the main magnetic pole, in the other end side. A metallic film that increases light intensity of the near-field light to be increased is formed in the inclined surface. | 06-16-2011 |
| 20110107758 | DRIVE MODULE, METHOD OF ASSEMBLING THE SAME, AND ELECTRONIC APPARATUS - A drive module of the invention includes a tubular or columnar body to be driven, a tubular supporting body for receiving therein the body to be driven, a plate spring member for elastically holding the body to be driven so as to be movable in a specific direction with respect to the supporting body, and a driving device for driving the body to be driven in the specific direction against a restoring force of the plate spring member. The driving device includes a shape memory alloy wire engaged with the body to be driven and contracted by heat, which is generated when an electric current is applied thereto, to drive the body to be driven against the restoring force of the plate spring member, and a holding terminal having a wire holding portion for holding an end of the shape memory alloy wire. The holding terminal has a fitting portion positioned by being fitted to the supporting body, and a regulating portion serving as a detent of the supporting body. The holding terminal is supported by and fixed to the supporting body. | 05-12-2011 |
| 20110086976 | SLIDING PARTS, PRECISION PARTS AND TIMEPIECES AND ELECTRONIC EQUIPMENT USING THE SAME - The present invention relates to sliding parts, precision parts and timepieces and electronic equipment using those parts. Sliding parts are composed by a resin in which the degree of orientation of a fibrous filler is higher at the portion serving as the sliding surface than inside the sliding part, and the fibrous filler is oriented along the sliding surface on the sliding surface. Alternatively, precision parts are composed by a resin to which has been added carbon fibers for which a carbon compound is thermally decomposed to carbon in the vapor phase and simultaneously grown directly into fibers simultaneous to this thermal decomposition. Moreover, timepieces and electronic equipment are composed by these sliding parts or these precision parts. | 04-14-2011 |
| 20110062921 | VOLTAGE REGULATOR - Provided is a voltage regulator capable of securely preventing a reverse current from an output terminal ( | 03-17-2011 |
| 20100288643 | METHOD FOR MANUFACTURING ELECTROFORMED MOLD, ELECTROFORMED MOLD, AND METHOD FOR MANUFACTURING ELECTROFORMED PARTS - In a method of manufacturing an electroforming mold, a first photoresist layer is formed on an upper surface of a bottom conductive film of a substrate, and the first photoresist layer is divided into a first soluble portion and a first insoluble portion. A conductive material is thermally deposited on an upper surface of the first photoresist layer within a predetermined temperature range, to thereby form an intermediate conductive film. An intermediate conductive film is patterned. A second photoresist layer is formed on an exposed upper surface of the first photoresist layer after the intermediate conductive film is removed, and on an upper surface of the intermediate conductive film remaining after patterning. The second photoresist layer is divided into a second soluble portion and a second insoluble portion. Next, the first and second photoresist layers are developed, and the first and second soluble portions are removed. | 11-18-2010 |
| 20100266892 | FLAT ALKALINE PRIMARY BATTERY - A flat alkaline primary battery is provided. The annular end portion of the negative electrode can is engaged with the annular end portion of the positive electrode can so that the positive electrode can and the negative electrode can are connected via a gasket to create an enclosed space inside the cans. The enclosed space accommodates a separator, a positive electrode mixture having a positive electrode active material as a main component, and a negative electrode mixture having a negative electrode active material as a main component. The enclosed space is filled with an alkaline electrolyte. The positive electrode active material is oxy nickel hydroxide. The negative electrode active material is a zinc or zinc alloy powder. The mass of the oxy nickel hydroxide is between 3.9 and 4.4, times, inclusive, o the mass of the zinc or the zinc alloy. Alternatively, the mass of the oxy nickel hydroxide is between 3.3 times, inclusive, the mass of the zinc or the zinc alloy. | 10-21-2010 |
| 20100227241 | Pressure Regulating Valve, Fuel Cell System Using Same, and Hydrogen Generating Facility - A pressure regulating valve comprises a first pressure deformation part ( | 09-09-2010 |
| 20100201331 | Voltage regulator - To provide a voltage regulator having improved response characteristics in case of overshoot. The voltage regulator includes: a transistor ( | 08-12-2010 |
| 20100127700 | MAGNETIC SENSOR CIRCUIT - A magnetic sensor circuit includes: a Hall element; a comparator circuit for comparing a Hall voltage corresponding to a magnetic flux passing through the Hall element with a threshold voltage; an output logic determination circuit for determining output logic of the magnetic sensor circuit based on an output signal from the comparator circuit; a threshold voltage control circuit for determining the threshold voltage based on a data signal output from the output logic determination circuit; and a threshold voltage output circuit for outputting the threshold voltage for the comparator circuit based on a data signal output from the threshold voltage control circuit. Therefore, the magnetic sensor circuit in which a circuit scale is small, and increase in current consumption and cost is suppressed can be provided. | 05-27-2010 |
| 20100117640 | MAGNETIC SENSOR CIRCUIT - A magnetic sensor circuit is provided in which an offset of the magnetic sensor circuit can be eliminated to detect a weak magnetic field with high precision. A reference voltage source is provided to charge an input capacitor of a comparator included in the magnetic sensor circuit to a predetermined voltage. | 05-13-2010 |
| 20100060084 | BATTERY PROTECTION IC AND BATTERY DEVICE - Provided are a battery protection IC adaptable to any number of batteries connected in series without increasing a breakdown voltage thereof, and a battery device including the battery protection IC mounted thereon. A charge control signal input terminal and a discharge control signal input terminal of one battery protection IC are provided with a clamp circuit ( | 03-11-2010 |
| 20100038706 | SEMICONDUCTOR DEVICE - Provided is an ESD protection element, in which: LOCOS oxide films are formed at both ends of a gate electrode, and a conductivity type of a diffusion layer formed below one of the LOCOS oxide films which is not located on a drain side is set to a p-type, to thereby limit an amount of a current flowing in a portion below a source-side n-type high concentration diffusion layer, the current being generated due to surface breakdown of a drain. With this structure, even in a case of protecting a high withstanding voltage element, it is possible to easily satisfy a function required for the ESD protection element, the function of being constantly in an off-state during a steady state, while operating, upon application of a surge or noise to a semiconductor device, so as not to reach a breakage of an internal element, discharging a generated large current, and then returning to the off-state again. | 02-18-2010 |
| 20090295306 | LED DRIVE CIRCUIT - Provided is an LED drive circuit capable of using a switching regulator IC having low breakdown voltage even when a power supply voltage is high. The LED drive circuit includes a voltage clamp circuit for clamping the power supply voltage to an operating voltage of the switching regulator IC, converts an output voltage of a current detecting circuit for detecting a current flowing through an LED into the operating voltage of the switching regulator IC, and outputs the operating voltage. | 12-03-2009 |
| 20090286064 | SLIDING PARTS, PRECISION PARTS AND TIMEPIECES AND ELECTRONIC EQUIPMENT USING THE SAME - The present invention relates to sliding parts, precision parts and timepieces and electronic equipment using those parts. Sliding parts are composed by a resin in which the degree of orientation of a fibrous filler is higher at the portion serving as the sliding surface than inside the sliding part, and the fibrous filler is oriented along the sliding surface on the sliding surface. Alternatively, precision parts are composed by a resin to which has been added carbon fibers for which a carbon compound is thermally decomposed to carbon in the vapor phase and simultaneously grown directly into fibers simultaneous to this thermal decomposition. Moreover, timepieces and electronic equipment are composed by these sliding parts or these precision parts. | 11-19-2009 |
| 20090273050 | Photoelectric Conversion Device and Method of Producing the Same, and Method of Producing Line Image Sensor IC - A plurality of line image sensor ICs | 11-05-2009 |
| 20090261797 | SWITCHING REGULATOR - Provided is a switching regulator which is capable of reducing soft start time when being activated, and prolonging battery life. The switching regulator has a configuration in which a clamp circuit for clamping a reference voltage is provided in a soft start circuit, and a predetermined period of time since the switching regulator has been activated is divided into a plurality of segments to increase the reference voltage with different slopes for each of the plurality of segments. At an early stage of the activation, the reference voltage is set to be low for preventing an inrush current from a power source, and thereafter, a rate of increase in reference voltage is gradually increased, to thereby reduce the soft start time. | 10-22-2009 |
| 20090203210 | MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE - A method of forming a metal interconnection that has a favorable cross-sectional shape is provided without the fear of side etching, even in a sparse arrangement of metal interconnections. The method, the following structure is employed. A region for placing a dummy metal interconnection is provided close to a region in which a metal interconnection is formed. A trench is formed in the dummy metal interconnection region and a resist pattern for the metal interconnection is then formed, giving the resist above the trench a large surface area per unit area. The metal interconnection is subsequently formed by dry etching in which an organic component from the resist above the trench forms a solid sidewall protection film, permitting anisotropic etching. The metal interconnection can thus have a favorable cross-sectional shape. | 08-13-2009 |
| 20090201028 | EVALUATION METHOD OF INSULATING FILM AND MEASUREMENT CIRCUIT THEREOF - Provided is a method of evaluating dielectric breakdown by applying a current to an insulating film, in which measurement for a forward direction current and measurement for a backward direction current are performed in a short period of time. For this purpose two MOS diodes in which an electrode of one MOS diode and a base of another MOS diode are short-circuited respectively are prepared to form a circuit to which the current is applied, providing current flow in one insulating film reverse to current flow in another insulating film, which enables the application of both the forward direction current and the backward direction current. | 08-13-2009 |
| 20090200613 | SEMICONDUCTOR DEVICE - A transistor having a perpendicular channel direction and a transistor having a parallel channel direction are combined to cancel out stress-induced change in a characteristic value, providing a semiconductor device whose shift in characteristic value is small. Consequently, a channel that runs in a direction perpendicular to one side of a semiconductor chip is formed in one transistor ( | 08-13-2009 |
| 20090175085 | NON-VOLATILE SEMICONDUCTOR MEMORY DEVICE AND METHOD OF WRITING AND READING THE SAME - MOS transistors each having different ON withstanding voltages that are drain withstanding voltages when gates thereof are turned on are formed on the same substrate. One of the MOS transistors having the lower ON withstand voltage is used as a memory element. Using the fact that the drain withstanding voltage is low when a gate thereof is turned on, a short-circuit occurs in a PN junction between a drain and the substrate of the one of the MOS transistors having the lower ON withstand voltage to write data. | 07-09-2009 |
| 20090162645 | Display Apparatus and Method of Manufacturing a Display Apparatus - A display apparatus is provided in which a transparent cover plate or a touch panel is bonded to a liquid crystal display device in a full-surface contact manner and which is free from unevenness in displayed colors and peeling. The transparent cover plate or touch panel and the liquid crystal display device are bonded with an optical adhesive, which is set to a Shore A hardness of 1 or more to 30 or less. The thickness of the adhesive layer is set to 30 to 200 μm. | 06-25-2009 |
| 20090152992 | AIRTIGHT TERMINAL - To provide an airtight terminal and a piezoelectric vibrator having a strong rigidity of a lead despite a small-sized constitution, and provide a method of fabricating an airtight terminal constituting a lead penetrating inside of a stem by one piece and a piezoelectric vibrator with an excellent yield. A stem | 06-18-2009 |
| 20090152679 | SEMICONDUCTOR DEVICE - A metal electrode is disposed on each of a plurality of resistor groups which are made of polycrystalline silicon resistors and constitute a resistor circuit. The metal electrode is connected to an end of the resistor via another interconnecting layer. Accordingly, the external influence which the metal electrode receives during a semiconductor manufacturing process is prevented from directly acting on the resistor, whereby resistance variation is suppressed. | 06-18-2009 |
| 20090146499 | POWER SUPPLY SWITCHING CIRCUIT - In a power supply switching circuit, a transistor that switches to a highest voltage is formed of an enhancement type PMOS transistor, and transistors that switch other voltages are each formed of a depletion type NMOS transistor. A signal for controlling a gate of each of the transistors is input through a level shifter. The depletion type NMOS transistor does not operate in a bipolar manner even if a source voltage thereof reaches a power supply voltage VPP | 06-11-2009 |
| 20090079411 | VOLTAGE DIVIDING CIRCUIT AND MAGNETIC SENSOR CIRCUIT - To provide a variable voltage dividing circuit capable of changing voltage values of a detection point and a release point along with a change in power supply voltage without changing a hysteresis width. The variable voltage dividing circuit according to the present invention includes: a voltage dividing unit which includes a resistor string formed of a plurality of resistors connected in series, and outputs divided voltages divided at connection points of the plurality of resistors, one end of the resistor string being applied with a first voltage, another end thereof being applied with a second voltage; a first constant current source connected to a first connection point of the resistor string; and a second constant current source connected to a second connection point located symmetrically to the first connection point with respect to a center of the resistor string in the resistor string, in which, in accordance with a voltage difference between the first voltage and the second voltage, any one of the first constant current source and the second constant current source subtracts a first adjustment current from a current flowing through the resistor string, and another thereof feeds a second adjustment current to the resistor string. | 03-26-2009 |
| 20090059997 | SEMICONDUCTOR TEMPERATURE SENSOR - Provided is a semiconductor temperature sensor having satisfactory linearity of an output voltage with respect to temperature. In a semiconductor temperature sensor ( | 03-05-2009 |
| 20090046020 | Portable Electronic Apparatus - A portable electronic apparatus has a main body case in which are disposed a display panel, a circuit board, and a dielectric antenna. The dielectric antenna is disposed at a vicinity of a peripheral edge portion of the circuit board. | 02-19-2009 |
| 20080292951 | Flat Alkaline Primary Battery - A flat alkaline primary battery is provided. The annular end portion of the negative electrode can is engaged with the annular end portion of the positive electrode can so that the positive electrode can and the negative electrode can are connected via a gasket to create an enclosed space inside the cans. The enclosed space accommodates a separator, a positive electrode mixture having a positive electrode active material as a main component, and a negative electrode mixture having a negative electrode active material as a main component. The enclosed space is filled with an alkaline electrolyte. The positive electrode active material is oxy nickel hydroxide. The negative electrode active material is a zinc or zinc alloy powder. The mass of the oxy nickel hydroxide is 3.9 or more and 4.4 or less times greater than the mass of the zinc or the zinc alloy. | 11-27-2008 |
| 20080220297 | Hydrogen Generator - Hydrogen generation materials are a complex hydride which generates hydrogen upon hydrolysis, and an aqueous solution comprising water for causing the hydrolysis, and an accelerator dissolved therein for accelerating a hydrogen generation reaction. A method of hydrogen generation by a hydrogen generator comprises a first step S | 09-11-2008 |
| 20080206637 | Flat Alkaline Primary Battery - A flat alkaline primary battery is provided. The annular end portion of the negative electrode can is engaged with the annular end portion of the positive electrode can so that the positive electrode can and the negative electrode can are connected via a gasket to create an enclosed space inside the cans. The enclosed space accommodates a separator, a positive electrode mixture having a positive electrode active material as a main component, and a negative electrode mixture having a negative electrode active material as a main component. Then the enclosed space is filled with an alkaline electrolyte. The positive electrode active material is oxy nickel hydroxide. The negative electrode active material is a zinc or zinc alloy powder. The mass of the oxy nickel hydroxide is 3.3 times or more and 3.8 times or less times greater than the mass of the zinc or the zinc alloy. | 08-28-2008 |
| 20080206635 | Electrochemical Element - An electrochemical element comprises a container and a sealing plate for sealing an opening of the container. The container is sealed with the sealing plate by welding a portion of the brazing material on the sealing plate and a portion of the metal film of the container which make contact with each other together in a state where a first electrode active material, a separator, a second electrode active material and an electrolyte are contained in the container. An electricity collector sheet is electrically connected to the first electrode active material or the second electrode active material, whichever is closer to the opening of the container. At least a portion of the electricity collector sheet extends to the end portion of the container so that the container and the sealing plate are welded together with the extending portion of the electricity collector sheet in between. Thus, the manufacturing process may be simplified so that the welding of the container and the sealing plate can be easily carried out even when the container and the sealing plate are reduced in size. | 08-28-2008 |
| 20080204606 | ELECTRONIC EQUIPMENT AND SEMICONDUCTOR DEVICE - Provided is an electronic device which consumes less power in a standby state waiting for a signal sent from a remote controller. A photodiode ( | 08-28-2008 |
| 20080203532 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A semiconductor device having a transistor circuit and a bleeder resistance circuit is provided in which fluctuations in resistance value of a bleeder resistor are reduced. In the transistor circuit, a barrier metal film and a interconnect film are layered as a metal film on an interlayer insulating film above transistor structure. In the bleeder resistance circuit, the interconnect film is layered as a metal film on the interlayer insulating film above the bleeder resistor formed from polysilicon film. Alternatively, the metal film in the bleeder resistance circuit includes the barrier metal film only in a portion where the metal film is connected to the bleeder resistor. This reduces stress to the bleeder resistor formed from a polysilicon film, and the resistance value of the bleeder resistor accordingly fluctuates less. In addition, since the metal film used as interconnect of the transistor circuit includes the barrier metal film, interconnect reliability is not impaired. | 08-28-2008 |
