Issued Patents All Time
Showing 101–125 of 145 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4766973 | 4WD vehicle torque distribution device incorporating friction engaging device providing multi mode operation, and method for operation thereof | Yuji Kashihara | 1988-08-30 |
| 4754836 | Control method and device for automotive vehicle four wheel drive transmission suppressing front/rear differential action when automatic main transmission is in intermediate hold range | Yoshiharu Harada, Kunio Morisawa | 1988-07-05 |
| 4753132 | Hydraulic servo for friction coupling devices of automatic transmissions | Koji Sumiya, Koji Kobayashi, Haruki Takemoto, Seitoku Kubo, Kazuaki Watanabe | 1988-06-28 |
| 4748809 | Hydraulic servo mechanism of automatic transmission for vehicle | Koji Sumiya, Yoshikazu Sakaguchi, Seitoku Kubo, Shuzo Moroto | 1988-06-07 |
| 4738159 | Four-wheel drive automatic transmission | Kozo Kato, Yoichi Hayakawa, Shinya Nakamura | 1988-04-19 |
| 4733580 | Method of controlling a transmission of a vehicle in two different modes according to requirements for power and economy | Seitoku Kubo, Shinya Nakamura, Hideki Yasue | 1988-03-29 |
| 4727773 | Hydraulic circuit for controlling automatic transmission | Koji Sumiya, Yoshikazu Sakaguchi, Takuji Taniguchi, Yoshio Shindo | 1988-03-01 |
| 4727774 | Cut-back pressure control device for multi-speed automatic transmission | Koji Sumiya, Yoshikazu Sakaguchi, Takuji Taniguchi, Yoshio Shindo | 1988-03-01 |
| 4727772 | Multistage automatic shift control apparatus | Koji Sumiya, Yoshikazu Sakaguchi, Takuji Taniguchi, Yoshio Shindo | 1988-03-01 |
| 4726254 | Four wheel drive power transmission system with front universal joint of front propeller shaft located towards gearbox from engine | Seitoku Kubo, Kunio Morisawa | 1988-02-23 |
| 4724745 | Hydraulic servo drum for friction clutch | Koji Sumiya, Takenori Kano, Kazuaki Watanabe | 1988-02-16 |
| 4724725 | Transmission control system for controlling a main transmission speed changing pattern relative to a subtransmission speed changing ratio | Yoshiharu Harada, Kagenori Fukumura, Yoichi Hayakawa, Masao Kawai | 1988-02-16 |
| 4722251 | Hydraulic circuit for controlling an automatic transmission | Koji Sumiya, Yoshikazu Sakaguchi, Takuji Taniguchi, Yoshio Shindo | 1988-02-02 |
| 4722250 | Accumulator back pressure control apparatus for automatic transmission | Koji Sumiya, Yoshikazu Sakaguchi, Takuji Taniguchi, Yoshio Shindo | 1988-02-02 |
| 4722249 | Control system for a transmission having a main transmission and a sub-transmission | Yoshiharu Harada, Kenichi Yoshizawa, Yoichi Hayakawa, Masao Kawai | 1988-02-02 |
| 4721018 | Transmission control having a plurality of speed changing ratios for controlling a transmission system | Yoshiharu Harada, Seiichi Nishikawa, Yoichi Hayakawa, Masao Kawai | 1988-01-26 |
| 4721011 | Four wheel drive power transmission system with front propeller shaft including no universal joints connecting transfer device to front differential | Seitoku Kubo, Kunio Morisawa | 1988-01-26 |
| 4716998 | Direct coupling clutch with a damper device for a fluid coupling | Kazumasa Tsukamoto, Masahiro Hayabuchi, Koji Maeda, Kazuaki Watanabe | 1988-01-05 |
| 4714146 | Friction coupling element of automatic transmission | Shuzo Moroto, Koji Sumiya, Kazuaki Watanabe, Seitoku Kubo, Koji Kobayashi | 1987-12-22 |
| 4713988 | Transmission control device | Yoshiharu Harada, Kagenori Fukumura, Yoichi Hayakawa, Masao Kawai | 1987-12-22 |
| 4708032 | Transmission control device having selectable rotation speed detector | Yoshiharu Harada, Kagenori Fukumura, Yoichi Hayakawa, Masao Kawai | 1987-11-24 |
| 4702341 | Four wheel drive vehicle slippage control device and method limiting center differential action according to input torque supplied thereto | Seitoku Kubo, Yuji Kashihara, Kunio Morisawa, Mitsuru Takada, Yasunari Nakamura | 1987-10-27 |
| 4702083 | Control system and method for controllable output type hydraulic fluid pump of automatic transmission providing decreased pump output in association with the engine starting condition | Shinya Nakamura, Seitoku Kubo | 1987-10-27 |
| 4697474 | Lock-up clutch control device for a multi-speed automatic transmission | Koji Sumiya, Yoshikazu Sakaguchi, Takuji Taniguchi, Yoshio Shindo | 1987-10-06 |
| 4693143 | Control device for an automatic transmission system | Yoshiharu Harada, Kagenori Fukumura, Yoichi Hayakawa, Masao Kawai | 1987-09-15 |