Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Fujitsuka, JP
Hiroki Fujitsuka, Matsudo-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100080725 | Production method for sintered valve guide - A production method for a sintered valve guide includes preparing a raw powder which is primarily made of an iron powder and which includes at least a copper alloy powder and a graphite powder. The production method further includes compacting the raw powder into a green compact having an approximately cylindrical shape and sintering the green compact at 950 to 1050° C. The iron powder includes particles, which do not pass through a sieve of 240 mesh, at not less than 40 mass %, and not less than 70 mass % of the powder particles have not more than 0.5 of degree of circularity. | 04-01-2010 |
| 20110146448 | SINTERED VALVE GUIDE AND PRODUCTION METHOD THEREFOR - A sintered valve guide exhibits a metallic structure having a mixed structure and a hard phase in which hard particles are dispersed in an alloy matrix. The mixed structure consists of pearlite, an Fe—P—C ternary eutectic phase, a ferrite phase, a copper phase, and pores, and the mixed structure consists of, by mass %, 0.075 to 0.525% of P, 3.0 to 10.0% of Cu, 1.0 to 3.0% of C, and the balance of Fe and inevitable impurities. The hard phase is dispersed at 2 to 15 mass % in the mixed structure. | 06-23-2011 |
| 20120082584 | SINTERED MATERIAL FOR VALVE GUIDES AND PRODUCTION METHOD THEREFOR - A sintered material for valve guides consists of, by mass %, 0.01 to 0.3% of P, 1.3 to 3% of C, 1 to 4% of Cu, and the balance of Fe and inevitable impurities. The sintered material exhibits a metallic structure made of pores and a matrix. The matrix is a mixed structure of a pearlite phase, a ferrite phase, an iron-phosphorus-carbon compound phase, and a copper phase, and a part of the pores including graphite that is dispersed therein. The iron-phosphorus-carbon compound phase is dispersed at 3 to 25% by area ratio, and the copper phase is dispersed at 0.5 to 3.5% by area ratio, with respect to a cross section of the metallic structure, respectively. | 04-05-2012 |
| 20120082585 | SINTERED MATERIAL FOR VALVE GUIDES AND PRODUCTION METHOD THEREFOR - A sintered material for valve guides consists of, by mass %, 1.3 to 3% of C, 1 to 4% of Cu, 0.01 to 0.08% of P, 0.05 to 0.5% of Sn, and the balance of Fe and inevitable impurities. The sintered material exhibits a metallic structure made of pores and a matrix. The matrix is a mixed structure of a pearlite phase, a ferrite phase, an iron-phosphorus-carbon compound phase, and at least one of a copper-tin alloy phase and a combination of a copper phase and a copper-tin alloy phase. A part of the pores includes graphite that is dispersed therein. The iron-phosphorus-carbon compound phase is dispersed at 3 to 25% by area ratio, and the copper-tin alloy phase and the combination of the copper phase and the copper-tin alloy phase are dispersed at 0.5 to 3.5% by area ratio, with respect to a cross section of the metallic structure, respectively. | 04-05-2012 |
Hiroyuki Fujitsuka, Saitama JP
| Patent application number | Description | Published |
|---|---|---|
| 20110241703 | VARIABLE CAPACITOR AND POSITION INDICATOR - A variable capacitor is disclosed, including: a dielectric having a first surface and a second surface opposing the first surface; a first electrode disposed on the first surface of the dielectric; a second electrode disposed to face the second surface of the dielectric; and a pressing member configured to cause the second electrode and the dielectric to contact each other when a pressing force is applied thereto (e.g., when a pen-shaped position indicator including the variable capacitor is pressed against a tablet). In the variable capacitor, the second electrode includes at least one electrode piece having an abutting central portion, against which the pressing member transmits a pressing force applied thereto, and an extension portion that radially extends from the abutting central portion toward a circumferential portion of the dielectric. A contact area between the dielectric and the second electrode is changed in accordance with a pressing force applied to the pressing member, to thereby change a capacitance of the variable capacitor. | 10-06-2011 |
| 20120074962 | VARIABLE CAPACITOR, POSITION INDICATOR, AND INPUT DEVICE - A variable capacitor is provided for use with an electronic circuit board including a first terminal portion and a second terminal portion, to be built in a position indicator. The variable capacitor includes a dielectric having a first surface portion and a second surface portion opposite to the first surface portion, and a conductive elastic member having a board coupling portion and a dielectric contacting portion. The first terminal portion is coupled to the first surface portion, the second terminal portion is coupled to the board coupling portion, and the dielectric contacting portion is disposed separately from the second surface portion so as to face the second surface portion and is configured to be deformed to come in contact with the second surface portion of the dielectric. The variable capacitor is configured such that a contact area between the second surface portion and the dielectric contacting portion is changed in correspondence to a depressing force, which is applied against the dielectric contacting portion in a direction toward the dielectric, thereby changing an electrostatic capacitance of the variable capacitor. | 03-29-2012 |
Hiroyuki Fujitsuka, Kuki-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20110219892 | POSITION POINTER, VARIABLE CAPACITOR AND INPUTTING APPARATUS - A position pointer is disclosed, including a housing, a substantially bar-like rod accommodated in the housing such that one end thereof projects to the outer side of the housing, and a variable capacitor having a capacitance value which varies in response to external force applied thereto through the rod. The variable capacitor includes a dielectric member having a first face portion and a second face portion opposite from the first face portion, a terminal member configured to engage with the first face portion of the dielectric member, an electrode section disposed in an opposing relationship to the second face portion of the dielectric member and including a conductive member having a contact area with the second face portion that varies in response to the external force, and an elastic member configured to bias the conductive member in a direction in which the conductive member is spaced away from the second face portion. | 09-15-2011 |
Hiroyuki Fujitsuka, Saitama-Ken JP
| Patent application number | Description | Published |
|---|---|---|
| 20100038152 | POSITION POINTING DEVICE AND HAND-HELD ELECTRONIC APPLIANCE - The present invention relates to a position pointing device comprising a housing ( | 02-18-2010 |
| 20100117994 | POSITION INDICATOR, VARIABLE CAPACITOR AND INPUT DEVICE - A variable capacitor of a position indicator includes a dielectric, an electrode, a conductive member and a conductive portion. The dielectric has an upper surface and a lower surface opposite the upper surface. The electrode is provided on the upper surface of the dielectric. The conductive member is arranged so as to face the lower surface of the dielectric. The conductive portion is provided on the lower surface of the dielectric and is arranged so as to be electrically connectable to the conductive member. The conductive member is adapted to be elastically deformed when pressed against the lower surface by an external force, such that the capacitance of the variable capacitor changes according to a change of the external force. | 05-13-2010 |
| 20100207607 | POSITION INDICATOR, CIRCUIT COMPONENT AND INPUT DEVICE - A position indicator includes a tubular core member, a first coil, a second coil, a substantially bar-like rod, a pen-pressure detecting element, at least one capacitor, and a switch. The tubular core member is formed by a substantially bar-like first magnetic core and a substantially bar-like second magnetic core, which are combined in a transversal direction thereof to form a through-hole therebetween. At least one of the first and second magnetic cores may include a recessed portion formed therein extending in the axial direction thereof. The first coil is wound around the tubular core member, and the second coil is wound around the second magnetic core. The rod is inserted into the through-hole of the tubular core member. The pen-pressure detecting element detects a pressure applied to an end of the rod (i.e., the pen tip). The capacitor is connected to the first coil to form a resonant circuit. The switch controls “on” and “off” states of the second coil for the purpose of calculating a rotation angle of the position indicator about its axis. | 08-19-2010 |
Hiroyuki Fujitsuka, Kitakatsushika-Gun JP
| Patent application number | Description | Published |
|---|---|---|
| 20090076770 | POSITION INDICATOR, VARIABLE CAPACITOR, POSITION INPUT DEVICE AND COMPUTER SYSTEM - A position indicator ( | 03-19-2009 |
| 20090084614 | POSITION INDICATOR AND COORDINATE INPUT DEVICE - A position indicator includes a case ( | 04-02-2009 |
| 20090114459 | COORDINATE INPUT DEVICE, POSITION INDICATOR AND VARIABLE CAPACITOR - A dielectric ( | 05-07-2009 |
| 20110192658 | POSITION POINTER, VARIABLE CAPACITOR AND INPUTTING APPARATUS - A position pointer is provided, which includes a housing having an opening, a bar-like rod disposed in the housing such that one end thereof projects from the opening, and a variable capacitor having a capacitance value which varies in response to pressure applied thereto through the rod. The capacitor includes a dielectric member having a first face portion opposite a second face portion, a first electrode section disposed on the first face portion of the dielectric member, a conductive member facing the second face portion of the dielectric member and forming a second electrode section when brought into contact with the second face portion of the dielectric member, and an elastic member coupled with the conductive member and adapted for biasing the conductive member away from the second face portion. A contact area between the conductive member and the second face portion varies depending on the pressure applied thereto through the rod. | 08-11-2011 |
Masahiro Fujitsuka, Kahoku-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20120086963 | INFORMATION PROCESSING DEVICE TO GENERATE INFORMATION FOR DISTINGUISHING FORMS - An information processing device according to the present invention includes a storage unit ( | 04-12-2012 |
Masashi Fujitsuka, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20090164393 | POWER SYSTEM STABILIZATION SYSTEM - In a power system stabilization system for stabilizing a small-scale electric power system to which electric power generated by a rotating power generator is supplied, an electric water heater receives electric power from the electric power system and heats water, a system frequency measuring device measures system frequency of the electric power system, and a hot water controller increases the power consumption of the electric water heater when the system frequency exceeds a reference frequency, and decreases the power consumption of the electric water heater when the system frequency is less than the reference frequency. | 06-25-2009 |
| 20110127839 | SOLAR POWER GENERATION DEVICE - A transmitting circuit is connected to a power line at current flow-in sides to solar battery strings, and a receiving circuit is connected to the power line at current flow-out sides to the solar battery strings. An attenuating circuit connected in series to a bypass diode is provided in a bypass circuit. The transmitting circuit transmits a periodic signal of a predetermined frequency to the power line. The receiving circuit receives via the solar battery strings a transmission signal transmitted from the transmitting circuit to the power line. A determining circuit determines that, when it is detected that an amplitude of a transmission signal received by the receiving circuit is attenuated by a predetermined value or more, direct-current power is conducted to the bypass circuit. | 06-02-2011 |
Masashi Fujitsuka, Hyogo JP
| Patent application number | Description | Published |
|---|---|---|
| 20110271719 | WASHING MACHINE - A novel and excellently configured washing machine wherein a washing-tub can be rotated by centering on either two rotating-shafts oriented in different directions. | 11-10-2011 |
Ryota Fujitsuka, Mie-Gun JP
| Patent application number | Description | Published |
|---|---|---|
| 20110049612 | NONVOLATILE SEMICONDUCTOR MEMORY DEVICE AND MANUFACTURING METHOD THEREOF - According to one embodiment, a nonvolatile semiconductor memory device including a semiconductor layer with a main surface, a first insulating layer formed on the main surface of the semiconductor layer, a charge storage layer formed on the first insulating layer, a second insulating layer formed on the charge storage layer, and a control gate electrode formed on the second insulating layer. At least one inelastic scattering film that reduces energy of electrons by scattering is contained in at least one of the charge storage layer and second insulating layer. | 03-03-2011 |
Ryota Fujitsuka, Yokkaichi-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20110069530 | NONVOLATILE MEMORY DEVICE AND METHOD OF MANUFACTURING THE SAME - According to one embodiment, there is provided a method of manufacturing a nonvolatile memory device. In this method, a first voltage may be applied to a variable resistive element having a resistance value which is electrically rewritable in a high resistance and in a low resistance. In this method, a second voltage may be applied to the variable resistive element in a case where the resistance value of the variable resistive element to which the first voltage has been applied is greater than a resistance value of the low resistance and is not greater than a resistance value of the high resistance. Further, in this method, the applying of the second voltage to the variable resistive element may be repeated until the resistance value of the variable resistive element to which the second voltage has been applied falls within a range of the resistance value of the low resistance. | 03-24-2011 |
| 20110303969 | SEMICONDUCTOR MEMORY DEVICE AND METHOD OF MANUFACTURING THE SAME - According to one embodiment, a semiconductor memory device with memory cells each composed of a vertical transistor, comprises a silicon layer formed into a columnar shape on a silicon substrate, a gate insulating film part in which a tunnel insulating film, a charge storage layer, and a block insulating film are formed to surround the sidewall surface of the silicon layer, and a stacked structure part formed to surround the sidewall surface of the gate insulating film part and in which a plurality of interlayer insulating films and a plurality of control gate electrode layers are stacked alternately. The silicon layer, gate insulating film part, and control gate electrode layer constitute the vertical transistor. The charge storage layer has a region lower in trap level than a region facing the control gate electrode layer between the vertical transistors. | 12-15-2011 |
Ryota Fujitsuka, Mie JP
| Patent application number | Description | Published |
|---|---|---|
| 20120068144 | RESISTANCE RANDOM ACCESS MEMORY - According to one embodiment, there are provided a first electrode, a second electrode, first and second variable-resistance layers that are arranged between the first electrode and the second electrode, and at least one non variable-resistance layer that is arranged so that positions of the first and second variable-resistance layers between the first electrode and the second electrode are symmetrical to each other. | 03-22-2012 |
Ryota Fujitsuka, Mie-Ken JP
| Patent application number | Description | Published |
|---|---|---|
| 20110068316 | NONVOLATILE MEMORY ELEMENT AND NONVOLATILE MEMORY DEVICE - According to one embodiment, a nonvolatile memory device includes a plurality of nonvolatile memory elements each of that includes a resistance change film. The resistance change film is capable of recording information by transitioning between a plurality of states having different resistances in response to at least one of a voltage applied to the resistance change film or a current passed through the resistance change film, and the resistance change film includes an oxide containing at least one element selected from the group consisting of Hf, Zr, Ni, Ta, W, Co, Al, Fe, Mn, Cr, and Nb. An impurity element contained in the resistance change film is at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, La, V, Ta, B, Ga, In, Tl, C, Si, Ge, Sn, Pb, N, P, As, Sb, Bi, S, Se, and Te, and the impurity element has an absolute value of standard Gibbs energy of oxide formation larger than an absolute value of standard Gibbs energy of oxide formation of the element contained in the oxide. | 03-24-2011 |
| 20110175048 | NONVOLATILE MEMORY DEVICE AND METHOD FOR MANUFACTURING SAME - According to one embodiment, a nonvolatile memory device includes first and second conductive layers, a resistance change layer, and a rectifying element. The first conductive layer has first and second major surfaces. The second conductive layer has third and fourth major surfaces, a side face, and a corner part. The third major surface faces the first major surface and includes a plane parallel to the first major face and is provided between the fourth and first major surfaces. The corner part is provided between the third major surface and the side face. The corner part has a curvature higher than that of the third major surface. The resistance change layer is provided between the first and second conductive layers. The rectifying element faces the second major surface of the first conductive layer. An area of the third major surface is smaller than that the second major surface. | 07-21-2011 |
| 20110176351 | NONVOLATILE MEMORY DEVICE AND METHOD FOR MANUFACTURING SAME - According to one embodiment, a nonvolatile memory device includes a memory layer and a control unit. The memory layer includes a first conductive layer, a second conductive layer and a resistance change layer. The resistance change layer is provided between the first and second conductive layers and transits between a high resistance state and a low resistance state by at least one of an applied electric field and an applied current. The control unit is electrically connected to the first and second conductive layers and configured to apply a first signal with a first polarity between the first and second conductive layers prior to applying a second signal with a second polarity different from the first polarity between the first and second conductive layers to cause the resistance change layer to transit from the high resistance state to the low resistance state. | 07-21-2011 |
Takashi Fujitsuka, Yokohama-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20110187873 | IMAGE PROCESSING APPARATUS, CONTROLLING METHOD THEREOF, AND RECORDING MEDIUM - An image processing apparatus connects to a memory card with a communication function which includes a storage unit and a transmission unit configured to transmit data stored in the storage unit to an external apparatus, receives a transmission state of data stored in the memory card with the communication function from the memory card with the communication function, and discriminates a data type that the transmission unit can transmit. If the data type for determining the transmission state is a data type that the transmission unit can transmit, the image processing apparatus receives the transmission state from the memory card with the communication function and if the data type for determining the transmission state is not a data type that the transmission unit can transmit, the image processing apparatus does not receive the transmission state from the memory card with the communication function. | 08-04-2011 |
Teppei Fujitsuka, Nagasaki JP
| Patent application number | Description | Published |
|---|---|---|
| 20100080702 | WIND TURBINE GENERATOR AND ITS CONTROL METHOD - A wind turbine generator system is provided with a nacelle supporting a wind turbine rotor, a nacelle rotation mechanism, an anemometer, and a control apparatus controlling the nacelle rotation mechanism. Said control apparatus calculates the wind direction deviation from the wind direction measured by the anemometer and the direction of the wind turbine rotor. Said control apparatus performs a yaw rotation of the nacelle by the nacelle rotation mechanism when any of conditions (1) and (2) is satisfied; the condition (1) is a condition under which a state where the absolute value of said wind direction deviation is equal to or more than a first threshold value continues for a first duration predetermined, and the condition (2) is a condition under which a state where the absolute value of said wind direction deviation is equal to or more than a second threshold value larger than said first threshold value continues for a second duration shorter than said first duration. | 04-01-2010 |
Yuji Fujitsuka, Toyota-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100270822 | MOUNTING STRUCTURE OF VEHICLE SEAT AND VEHICLE THAT INCLUDES MOUNTING STRUCTURE OF VEHICLE SEAT - In a mounting structure of a vehicle seat, a side member and a bracket that support a vehicle seat form an enclosed section. Because the rigidity of the side member and the bracket may be secured, the mounting rigidity of the vehicle seat may be secured and the weight of the side member and the bracket thereby reduced. A pair of sidewalls formed in the side member face each other in the vehicle lateral direction, and a pair of connecting walls formed in the bracket are connected to the pair of sidewalls while facing the pair of sidewalls. If a forward and upward load is applied to the vehicle seat due to a sudden reduction in vehicle speed, a shearing force acts on the sidewall and the connection wall in relation to each other. Thus, sufficient durability of the connecting part may be ensured. | 10-28-2010 |