Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8162123 | Friction plate for wet-type multiplate clutch | — | 2012-04-24 |
| 7984801 | Friction plate for wet multi-plate clutch | — | 2011-07-26 |
| 7980375 | Friction plate for wet-type multiplate clutch | Hideaki Suzuki, Hiroyuki Kinpara, Masahiro Kobayashi | 2011-07-19 |
| 7789209 | Friction plate and wet-type multi-plate clutch | Tomoyuki Miyazaki, Ritsuo Toya, Masahiro Kobayashi | 2010-09-07 |
| 7597180 | Friction plate for wet-type multiplate clutch | Masahiro Kobayashi, Ritsuo Toya, Masahiro Yamada, Hirokazu Hino | 2009-10-06 |
| 7481306 | Wet-type multiplate clutch | Hirofumi Nakagomi | 2009-01-27 |
| 6283265 | Wet type multiplate clutch | Shigeki Umezawa | 2001-09-04 |
| 6062367 | Friction plate | Shigeki Umezawa | 2000-05-16 |
| 5890572 | Lockup clutch for torque converter | Shigeki Umezawa | 1999-04-06 |
| 5865283 | Torque converter with a lock-up mechanism | Shigeki Umezawa | 1999-02-02 |