Issued Patents All Time
Showing 51–68 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6319337 | Power transmission shaft | Hiroaki Makino, Akira Wakita | 2001-11-20 |
| 6287209 | Propeller shaft and method of producing the same | Tatsuo Nakajima, Yukihiro Watanabe, Hitoshi Kodama, Tsuneo Takano | 2001-09-11 |
| 6268628 | Depletion type MOS semiconductor device and MOS power IC | Motoi Kudoh, Tatsuhiko Fijihira | 2001-07-31 |
| 6229180 | MOS type semiconductor apparatus | Tatsuhiko Fujihira, Motoi Kudoh, Shoichi Furuhata, Shigeyuki Takeuchi | 2001-05-08 |
| 6135891 | Constant velocity universal joint | Keisuke Sone, Shogo Okada, Akira Wakita | 2000-10-24 |
| 6126897 | Carburizing steel and steel products manufactured making use of the carburizing steel | Kenji Aihara, Yasuhide Fujioka, Tatsuhiro Goto, Akira Wakita | 2000-10-03 |
| 6087803 | Battery pack, electronic equipment system and method of detecting loading of battery pack technical field | Yasuhito Eguchi | 2000-07-11 |
| 5853502 | Carburizing steel and steel products manufactured making use of the carburizing steel | Kenji Aihara, Yasuhide Fujioka, Tatsuhiro Goto, Akira Wakita | 1998-12-29 |
| 5828081 | Integrated semiconductor device | Tatsuhiko Fujihira | 1998-10-27 |
| 5811996 | Gate drive circuit having reduced current-consumption and rapid inductive energy dissipation | Kazunori Oyabe, Tatsuhiko Fujihira, Yukio Yano | 1998-09-22 |
| 5803993 | Outer ring for high strength constant velocity joint and production process for same | Tatsuhiro Goto, Akira Wakita, Toshio Kawasaki, Toyofumi Hasegawa, Hideo Takeshita +1 more | 1998-09-08 |
| 5707043 | Electric power tool for driving jack | — | 1998-01-13 |
| 5657964 | Electric power tool for driving jack | — | 1997-08-19 |
| 5621601 | Over-current protection apparatus for transistor | Tatsuhiko Fujihira, Shin Kiuchi, Yukio Yano, Kazunori Oyabe, Shoichi Furuhata +1 more | 1997-04-15 |
| 5587655 | Constant current circuit | Kazunori Oyabe, Tatsuhiko Fujihira | 1996-12-24 |
| 5293427 | Eye position detecting system and method therefor | Hiroshi Ueno | 1994-03-08 |
| 5218387 | Eye position detecting apparatus | Hiroshi Ueno | 1993-06-08 |
| 4913406 | Shaft furnace having means for charging and adjusting a pre-mixture of ore and coke | Norio Fukushima, Yasunori Serizawa, Shigeyasu Suzuki, Masanobu Masukawa, Shoji Sakurai | 1990-04-03 |