Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8500583 | Aircraft starter generator | Kenichiro Tanaka, Koji Watanabe | 2013-08-06 |
| 8449431 | Aircraft electric generation system | Kenichiro Tanaka, Masahide Nakamura, Koji Watanabe | 2013-05-28 |
| 8398525 | Planetary gear reduction system | Tetsuya Matsuoka, Hiroyasu Nishikawa, Tooru Nishida, Hirofumi Akahori, Hideyuki Imai | 2013-03-19 |
| 8378510 | Starting and generating apparatus for engine | Kenichiro Tanaka, Kazushige Sugimoto, Masahide Nakamura, Yasutaka Hirota, Koji Watanabe | 2013-02-19 |
| 8348803 | Planetary reduction gear apparatus | Tetsuya Matsuoka, Hiroyasu Nishikawa, Tooru Nishida, Hirofumi Akahori | 2013-01-08 |
| 7028461 | Uniaxial gas turbine system | — | 2006-04-18 |
| 6871128 | Speed change control method and speed change controller | Yukinobu Kouno, Masaaki Uenishi, Kenichi Nakashima, Koji Kawakami | 2005-03-22 |
| 6561940 | Method of and apparatus for driving aircraft generator at a constant-speed | Koji Kawakami, Kenichiro Tanaka, Takayuki Isano, Hisashi Machida, Hiroyuki Ito +1 more | 2003-05-13 |
| 6312358 | Constant speed drive apparatus for aircraft generator and traction speed change apparatus | Kouji Kawakami, Eiichi Yamakawa | 2001-11-06 |
| 6254504 | Power transmission apparatus for helicopter | Kouji Kawakami, Eiichi Yamakawa | 2001-07-03 |
| 6042499 | Power transmission device for helicopter | Nobuyuki Yamauchi | 2000-03-28 |
| 5782433 | Engine deceleration device and power transmission device for helicopters | Nobuyoshi Yamauchi, Eiichi Yamakawa | 1998-07-21 |