Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6566990 | Electromagnetic actuator and valve-open-close mechanism | Hitoshi Oyama, Takao Nishioka, Kouichi Sogabe | 2003-05-20 |
| 6380832 | Electromagnetic actuator | Hitoshi Oyama, Takao Nishioka, Takatoshi Takikawa | 2002-04-30 |
| 6371063 | Valve-open-close mechanism | Hitoshi Oyama, Takao Nishioka, Takatoshi Takikawa, Toshihiko Kaji, Nozomu Kawabe +1 more | 2002-04-16 |
| 6367433 | Electromagnetic actuator and valve-open-close mechanism | Hitoshi Oyama, Takao Nishioka, Hisanori Ohara | 2002-04-09 |
| 6120583 | Exhaust gas purifier and operating method thereof | Hidetoshi Saito | 2000-09-19 |
| 6013118 | Particulate trap for a diesel engine | Naruhito Nakajima | 2000-01-11 |
| 5782941 | Particulate trap for diesel engine | Shiro Nakajima, Naruhito Nakajima | 1998-07-21 |
| 5776600 | Slide member and method of manufacturing the same | Tetsuya Katayama, Kaoru Murabe, Osamu Komura, Chihiro Kawai, Akira Yamakawa +3 more | 1998-07-07 |
| 5675201 | Composite bearing structure | Osamu Komura, Tetsuya Katayama, Akira Yamakawa, Norio Yasuoka, Matsuo Higuchi +1 more | 1997-10-07 |
| 5647313 | Combination of adjusting shim and cam | Hiromu Izumida, Kaoru Murabe, Takao Nishioka, Akira Yamakawa | 1997-07-15 |
| 5605494 | Facility for grinding silicon nitride ceramic workpiece | Takao Nishioka, Akira Yamakawa | 1997-02-25 |
| 5584745 | Method of machining silicon nitride ceramics and silicon nitride ceramics products | Takao Nishioka, Akira Yamakawa | 1996-12-17 |
| 5543371 | Slide member and method of manufacturing the same | Tetsuya Katayama, Kaoru Murabe, Osamu Komura, Chihiro Kawai, Akira Yamakawa +3 more | 1996-08-06 |
| 5502011 | Silicon nitride sintered body | Takehisa Yamamoto, Takao Nishioka, Akira Yamakawa | 1996-03-26 |
| 5372099 | Ceramic adjusting shim | Takao Nishioka, Akira Yamakawa | 1994-12-13 |
| 5358797 | Adjusting shim | Takao Nishioka, Takehisa Yamamoto, Akira Yamakawa | 1994-10-25 |
| 5346869 | Sintered silicon nitride bodies suitable for use as high impact materials | Takao Nishioka, Takehisa Yamamoto, Akira Yamakawa, Masaya Miyake | 1994-09-13 |
| 5328876 | High strength silicon nitride sintered body and process for producing same | Takao Nishioka, Akira Kuibira, Yoshishige Takano, Matsuo Higuchi, Masaaki Honda +1 more | 1994-07-12 |
| 5297365 | Method of machining silicon nitride ceramics and silicon nitride ceramics products | Takao Nishioka, Akira Yamakawa | 1994-03-29 |
| 5280208 | Composite bearing structure | Osamu Komura, Norio Yasuoka, Matsuo Higuchi, Masaya Miyake, Tetsuya Katayama +1 more | 1994-01-18 |
| 5275772 | Silicon nitride sintered body and process for producing the same | Takehisa Yamamoto, Takao Nishioka, Akira Yamakawa, Masaya Miyake | 1994-01-04 |
| 5234642 | High strength silicon nitride sintered body and process for producing same | Takao Nishioka, Akira Kuibira, Yoshishige Takano, Matsuo Higuchi, Masaaki Honda +1 more | 1993-08-10 |
| 5225127 | Process for production of sintered silicon nitride made article | Takao Nishioka, Yoshishige Takano, Matsuo Higuchi, Masaya Miyake | 1993-07-06 |
| 5204297 | Silicon nitride sintered body and process for producing the same | Takehisa Yamamoto, Takao Nishioka, Akira Yamakawa, Masaya Miyake | 1993-04-20 |
| 5173458 | Silicon nitride sintered body and process for producing the same | Takao Nishioka, Koichi Sogabe, Tomoyuki Awatsu, Masaya Miyake, Takehisa Yamamoto +1 more | 1992-12-22 |