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Koji Uematsu
Koji Uematsu, Hyogo JP
| Patent application number | Description | Published |
|---|---|---|
| 20090155989 | NITRIDE SEMICONDUCTOR SUBSTRATE AND METHOD OF PRODUCING SAME - A nitride semiconductor crystal substrate is produced by forming a network mask repeating a closed loop unit shape upon an undersubstrate, growing a nitride semiconductor crystal in vapor phase, producing convex facet hills covered with facets on exposed parts Π, forming outlining concavities on mask-covered parts | 06-18-2009 |
| 20090189253 | METHOD OF PRODUCING A NITRIDE SEMICONDUCTOR DEVICE AND NITRIDE SEMICONDUCTOR DEVICE | 07-30-2009 |
| 20090194847 | A1xGa yIn 1-x-yN CRYSTAL SUBSTRATE, SEMICONDUCTOR DEVICE, AND METHOD OF MANUFACTURING THE SAME | 08-06-2009 |
| 20090194848 | METHOD FOR MANUFACTURING GALLIUM NITRIDE CRYSTAL AND GALLIUM NITRIDE WAFER - There is provided a method for fabricating a gallium nitride crystal with low dislocation density, high crystallinity, and resistance to cracking during polishing of sliced pieces by growing the gallium nitride crystal using a gallium nitride substrate including dislocation-concentrated regions or inverted-polarity regions as a seed crystal substrate. Growing a gallium nitride crystal | 08-06-2009 |
| 20090315150 | III-Nitride Crystal Manufacturing Method, III-Nitride Crystal Substrate, and III-Nitride Semiconductor Device - Affords methods of manufacturing bulk III-nitride crystals whereby at least the surface dislocation density is low globally. | 12-24-2009 |
| 20110100292 | METHOD FOR GROWING GaN CRYSTAL - A method for growing a GaN crystal includes a step of preparing a substrate ( | 05-05-2011 |
Koji Uematsu, Tochigi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090112391 | RETARDER CONTROL DEVICE FOR WORKING VEHICLE - A retarder control system for a working vehicle includes: an input shaft revolution speed detector ( | 04-30-2009 |
| 20090138169 | Antilock brake system control device and method - An object of the present invention is to provide an antilock brake system control device that can realize an accurate constant speed running control by cooperating an ABS control and a constant speed running. The control device includes: an ABS control hydraulic circuit that controls an ABS of each wheel; constant speed running controllers | 05-28-2009 |
| 20110246031 | Traction Control Device - A fraction control device includes: rotation speed detectors provided to wheels; a control-start determiner that determines whether or not to control a braking mechanism and a differential adjusting mechanism based on rotation speeds; a braking mechanism controller that controls the braking mechanism based on a result of the determination of the control-start determiner; and a differential adjusting mechanism controller that controls the differential adjusting mechanism based on the result of the determination of the control-start determiner, in which the control-start determiner includes: a right-left-wheel rotation speed difference calculating section; a front-rear-wheel rotation speed difference calculating section; and a control-start determining section that determines whether or not to start controlling at least one of the braking mechanism and the differential adjusting mechanism when one of rotation speed differences reaches or exceeds a predetermined threshold. | 10-06-2011 |
| 20110251762 | Traction Control Device - The invention provides a traction control device capable of preventing a reduction in acceleration. A fraction control device of the invention includes a braking mechanism controller that controls a braking mechanism. The braking mechanism controller includes: a target brake torque calculating section that calculates a target brake torque to each of wheels based on the rotation speed of the wheel and an estimated vehicle speed; a target brake torque determining section that determines whether or not the target brake torque reaches or exceeds a per-stored threshold; a reference wheel determining section that selects a reference wheel used as a reference for controlling the braking mechanism based on the target brake torque to each of the wheels; and a target brake torque reducing section that reduces the target brake torque in accordance with a difference between the target brake torque to the reference wheel and the threshold when the target brake torque to one of the wheels reaches or exceeds the threshold. | 10-13-2011 |
| 20110257847 | Vehicle Speed Estimator and Traction Control Device - A vehicle speed estimator includes a unit that selects a minimum rotation speed among rotation speeds of wheels detected by a rotation speed detector and calculates a reference wheel speed of a construction vehicle at every predetermined time. The unit includes: a variable filter processor that performs a low-pass filter processing to the minimum rotation speed, the variable filter processor having a variable time constant; and a time constant changer that changes the time constant of the variable filter processor in accordance with travel conditions of the construction vehicle. | 10-20-2011 |
Koji Uematsu, Oyama-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20110257851 | Traction Control Device - A traction control device of a six-wheel drive construction machine, the drive construction machine including: right and left front wheels connected to each other via an axle, right and left center wheels connected to each other via an axle, and right and left rear wheels connected to each other via an axle, the right and left front, center and rear wheels being driven as driving wheels; a braking mechanism provided to each of the wheels; and a differential adjusting mechanism for adjusting a differential between the front and rear driving wheels, the traction control device controls the braking mechanisms only for the driving wheels related to any two of axles while controlling the differential adjusting mechanism. | 10-20-2011 |
| 20110257861 | Traction Control Device - A traction control device includes: rotation speed detectors provided to wheels; a control-start determiner that determines whether or not to control a braking mechanism and a differential adjusting mechanism based on rotation speeds; a braking mechanism controller that controls the braking mechanism based on a result of the determination of the control-start determiner; and a differential adjusting mechanism controller that controls the differential adjusting mechanism based on the result of the determination of the control-start determiner, in which the control-start determiner includes: a right-left-wheel rotation speed difference calculating section; a front-rear-wheel rotation speed difference calculating section; and a control-start determining section that determines whether or not to start controlling at least one of the braking mechanism and the differential adjusting mechanism when one of rotation speed differences reaches or exceeds a predetermined threshold. | 10-20-2011 |