Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6471615 | Automatic transmission for vehicle | Tetsuo Naraki, Tsukasa Takahashi | 2002-10-29 |
| 6422371 | Centrifugal friction clutch for automatic transmission | Tetsuo Naraki, Tsukasa Takahashi | 2002-07-23 |
| 6375592 | Automatic transmission for vehicle | Tsukasa Takahashi, Tetsuo Naraki | 2002-04-23 |
| 6363807 | Variable speed gearing system | Tsukasa Takahashi, Tetsuo Naraki | 2002-04-02 |
| 5975270 | Clutch disk of C/C composite for a wet friction clutch, and process for producing the same | Toshio Tokune, Tetsuo Naraki, Mitsumasa Furumoto, Tsukasa Takahashi, Takao Nakagawa +1 more | 1999-11-02 |
| 5890983 | Cooling apparatus of a gear transmission having an electromagnetic clutch | Tetsuo Naraki | 1999-04-06 |
| 5733222 | Power transmission apparatus | Tetsuo Naraki | 1998-03-31 |
| 5733217 | Centrifugal friction clutch for automatic speed changing device | Tetsuo Naraki | 1998-03-31 |
| 5381724 | Swash-plate, plunger-type hydraul pressure apparatus | Takashi Nakamura, Mitsumasa Furumoto, Kazuaki Sakai | 1995-01-17 |
| 5249507 | Swash-plate plunger type hydraulic apparatus | Takashi Nakamura | 1993-10-05 |
| 5072587 | Hydraulically operated continuously variable transmission | Kenichi Ikejiri, Mitsumasa Furumoto | 1991-12-17 |
| 4972675 | Hydraulically operated continuously variable transmission | Takashi Iino, Yoshihiro Katagiri, Yasuhiro Sawa | 1990-11-27 |
| 4944154 | Hydraulically operated continuously variable transmission | Kenichi Ikejiri, Mitsumasa Furumoto, Noboru Yamamoto | 1990-07-31 |
| 4939900 | Hydraulically operated continuously variable transmission | Mitsumasa Furumoto, Kenichi Ikejiri, Noboru Yamamoto | 1990-07-10 |
| 4922715 | Hydraulically operated continuously variable transmission | Mitsumasa Furumoto, Takashi Koyama | 1990-05-08 |
| 4922717 | Hydraulically operated continuously variable transmission | Mistumasa Furumoto, Kenichi Ikejiri | 1990-05-08 |
| 4916900 | Hydraulically operated continuously variable transmission | Takashi Iino, Tsuneaki Seino | 1990-04-17 |
| 4911063 | Hydraulically operated swash-plate apparatus | Takashi Nakamura, Takeo Suzuta | 1990-03-27 |
| 4901529 | Hydraulically operated continuously variable transmission | Takashi Iino, Koji Yamaguchi, Kazuya Maki | 1990-02-20 |
| 4893548 | Hydraulically operated swash-type apparatus | Mitsumasa Furumoto, Takashi Koyama | 1990-01-16 |
| 4891944 | Hydraulically operated continuously variable transmission | Akihito Okuda, Yoshihiro Katagiri, Kenichi Ikejiri | 1990-01-09 |
| 4864823 | Hydraulically operated continuously variable transmission | Kenichi Ikejiri, Mitsumasa Furumoto | 1989-09-12 |
| 4856279 | Hydraulically operated continuously variable transmission | Kenichi Ikejiri | 1989-08-15 |
| 4838024 | Hydraulically operated continuously variable transmission | Noboru Yamamoto, Mitsumasa Furumoto, Kenichi Ikehjiri | 1989-06-13 |
| 4809587 | Actuator with built-in pilot valve | Kenichi Ikejiri, Takashi Iino, Kenjiro Iwasawa, Noboru Yamamoto | 1989-03-07 |