Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9893643 | Semiconductor module, semiconductor device, and electric power device | Yasuo Kotake | 2018-02-13 |
| 7124577 | Vehicular steering control device | Shuuji Hori, Sadao Nunotani, Naoki Ishizaki, Hisashi Asada | 2006-10-24 |
| 6841866 | Power semiconductor device | Kiyoshi Arai | 2005-01-11 |
| 6756623 | Semiconductor device and method of driving transistors | Toshiyuki Furuie | 2004-06-29 |
| 6552429 | Power switching semiconductor device with suppressed oscillation | Kiyoshi Arai, Hideo Matsumoto | 2003-04-22 |
| 6026730 | Flow control apparatus in a hydraulic circuit | Nobumi Yoshida, Tadao Karakama | 2000-02-22 |
| 5855159 | Hydraulic circuit for a boom cylinder in a hydraulic shovel | Nobumi Yoshida | 1999-01-05 |
| 5692427 | Flow reinforcement directional control valve for a hydraulic circuit | Nobumi Yoshida, Tadao Karakama | 1997-12-02 |
| 5673557 | Displacement control system for variable displacement type hydraulic pump | Nobumi Yoshida, Tadao Karakama | 1997-10-07 |