Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5845732 | Drivetrain for an electric vehicle | Masahiro Hasebe, Masayuki Takenaka | 1998-12-08 |
| 5771478 | Vehicle drive system with electrical power regeneration | Kazumasa Tsukamoto, Takeshi Inuzuka, Masashi Hattori, Haruki Takemoto, Kozo Yamaguchi | 1998-06-23 |
| 5195036 | Shift control system and method for automatic transmission, including engagement time lag control | Hiromichi Kimura, Kunihiro Iwatsuki, Hideaki Otsubo, Yukihiro Kobayashi, Kazunori Ishikawa | 1993-03-16 |
| 5174423 | Lock-up apparatus in torque converter | Kazumasa Tsukamoto, Hideji Katoh, Koji Maeda, Kunihiro Iwatsuki | 1992-12-29 |
| 5127287 | Hydraulic breathing apparatus for a hydraulic device | Kazunori Ishikawa, Kunihiro Iwatsuki, Hideaki Ootsubo | 1992-07-07 |
| 5109733 | Hydraulic control device for an automatic transmission | Kazunori Ishikawa, Kazumasa Tsukamoto, Yutaka Taga | 1992-05-05 |
| 5078028 | Hydraulic control device with cutback valve for an automatic transmission | Kaunori Ishikawa, Hideo Tomomatsu, Tadashi Kondo, Yuji Kashihara, Kazumasa Tsukamoto +2 more | 1992-01-07 |
| 5074168 | Hydraulic control device for an automatic transmission | Kazunori Ishikawa, Kunihiro Iwatsuki, Yutaka Taga | 1991-12-24 |
| 5061229 | Four-wheel drive device | Kazumasa Tsukamoto, Takao Taniguchi, Takahiro Yamashita | 1991-10-29 |
| 5010991 | Lock-up clutch control device for a torque converter | Kazumasa Tsukamoto, Kazunori Ishikawa, Kunihiro Iwatsuki, Yutaka Taga | 1991-04-30 |
| 5005444 | Hydraulic control apparatus for automatic transmission for motor vehicle | Hiromichi Kimura, Kunihiro Iwatsuki, Hiroji Taniguchi, Kazunori Ishikawa | 1991-04-09 |
| 4991464 | Engine brake control device for an automatic transmission | Kazunori Ishikawa, Kazumasa Tsukamoto, Yuji Kashihara, Kunihiro Iwatsuki, Hiroji Taniguchi | 1991-02-12 |
| 4908255 | Separate plate and process for producing the same | Kazunori Ishikawa, Kazumasa Tsukamoto, Shiro Goto | 1990-03-13 |
| 4727772 | Multistage automatic shift control apparatus | Koji Sumiya, Yoshikazu Sakaguchi, Yutaka Taga, Yoshio Shindo | 1988-03-01 |
| 4727773 | Hydraulic circuit for controlling automatic transmission | Koji Sumiya, Yoshikazu Sakaguchi, Yutaka Taga, Yoshio Shindo | 1988-03-01 |
| 4727774 | Cut-back pressure control device for multi-speed automatic transmission | Koji Sumiya, Yoshikazu Sakaguchi, Yutaka Taga, Yoshio Shindo | 1988-03-01 |
| 4722251 | Hydraulic circuit for controlling an automatic transmission | Koji Sumiya, Yoshikazu Sakaguchi, Yutaka Taga, Yoshio Shindo | 1988-02-02 |
| 4722250 | Accumulator back pressure control apparatus for automatic transmission | Koji Sumiya, Yoshikazu Sakaguchi, Yutaka Taga, Yoshio Shindo | 1988-02-02 |
| 4697474 | Lock-up clutch control device for a multi-speed automatic transmission | Koji Sumiya, Yoshikazu Sakaguchi, Yutaka Taga, Yoshio Shindo | 1987-10-06 |
| 4621710 | Bearing lubrication system for extension housing of vehicular transmission | Kazumasa Tsukamoto, Seitoku Kubo, Yutaka Taga | 1986-11-11 |
| 4352737 | Strainer for automatic transmission control valve | — | 1982-10-05 |