Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12084842 | Evaluation system for work machine and evaluation method for work machine | Tsuyoshi Kobayashi | 2024-09-10 |
| 11642369 | Method for enhancing expression of antioxidant in epidermis | Brian Charles Keller, Akira Kodama | 2023-05-09 |
| 11000477 | Preparing method for positively-electrified charged niosome, and charged niosome | Brian Charles Keller, Akira Kodama | 2021-05-11 |
| 7392891 | Friction plate for wet-type multiplate clutch | Yoshio Kinoshita, Shiro Takeuchi, Shigeki Umezawa, Shun Kitahara, Tamotsu Fujii +6 more | 2008-07-01 |
| 7322453 | Lockup clutch assembly | Yoshio Kinoshita, Shiro Takeuchi, Shigeki Umezawa, Shun Kitahara, Tamotsu Fujii +7 more | 2008-01-29 |
| 7059459 | Multiple disc clutch apparatus | — | 2006-06-13 |
| 6978874 | Starting clutch | Yoshio Kinoshita, Shiro Takeuchi, Hirofumi Nakagomi, Tadashi Watanabe, Hiroshi Yabe +1 more | 2005-12-27 |
| 6849024 | Starting clutch and method of controlling the same | Yoshitaka Hayashi, Hiroshi Fukushima, Takao Obara, Minao Umeda, Keeichi Minagi +8 more | 2005-02-01 |
| 6648117 | Starting clutch and method for controlling same | Masao Shoji, Yoshio Kinoshita, Shiro Takeuchi, Tadashi Watanabe, Hirofumi Nakagomi +3 more | 2003-11-18 |
| 5655368 | Viscous damper for hydraulic power transmission | Yasuto Koike, Masao Shoji | 1997-08-12 |
| 5605210 | Torque converter with a lockup mechanism | Yasuhito Koike, Masao Shoji | 1997-02-25 |
| 5452784 | Frictional engagement apparatus | Shigeki Umezawa | 1995-09-26 |
| 5395864 | Wet frictional material containing activated carbon fiber | Shun Kitahara, Shigeki Umezawa | 1995-03-07 |