Issued Patents All Time
Showing 51–69 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6692239 | Reciprocating compressor | Takahiro Nishikawa, Hiroshi Nishikawa, Takashi Harako, Kazuya Sato, Yasuo Sakamoto | 2004-02-17 |
| 6688016 | Angular position adjusting device | Shinsuke Suhara, Akiyoshi Tanaka | 2004-02-10 |
| 6688854 | Compression apparatus | Yasuo Sakamoto, Hiroshi Nishikawa, Makoto Aida, Takahiro Nishikawa, Kazuya Sato +1 more | 2004-02-10 |
| 6666657 | Reciprocating parallel flow compressor with discharge muffler | Takahiro Nishikawa, Hiroshi Nishikawa, Takashi Harako, Kazuya Sato, Yasuo Sakamoto | 2003-12-23 |
| 6666659 | Flywheel attachment for a compressor motor | Takahiro Nishikawa, Hiroshi Nishikawa, Takashi Harako, Kazuya Sato, Yasuo Sakamoto | 2003-12-23 |
| 6589024 | Reciprocating compressor | Takahiro Nishikawa, Hiroshi Nishikawa, Takashi Harako, Kazuya Sato, Yasuo Sakamoto | 2003-07-08 |
| 6547534 | Compression apparatus | Yasuo Sakamoto, Hiroshi Nishikawa, Makoto Aida, Takahiro Nishikawa, Kazuya Sato +1 more | 2003-04-15 |
| 6546738 | Stirling refrigerator | Hiroshi Sekiya, Takahiro Nakamura, Itsuo Nakazaki, Takashi Inoue, Ryousuke Tuihiji +7 more | 2003-04-15 |
| 6431840 | Multistage high pressure compressor | Denji Mashimo, Hiroshi Nishikawa, Takahiro Nishikawa, Yasuo Sakamoto, Kazuya Sato +1 more | 2002-08-13 |
| 6107774 | Apparatus and method for controlling drive of three-phase multiplex winding motor | Tetsuo Yamada | 2000-08-22 |
| 6008616 | Pole change induction motor and control apparatus and method for the same | Kazutoshi Nagayama, Tadashi Ashikaga, Kenji Yamada, Masato Mori, Katsuyuki Watanabe +1 more | 1999-12-28 |
| 5793598 | Magnetically levitated vibration damping apparatus | Katsuhide Watanabe, Yoichi Kanemitsu, Takahide Haga, Kenichi Yano, Ryuta Katamura | 1998-08-11 |
| 5689166 | Method and apparatus for controlling hybrid excitation type permanent magnet synchronous motor | Kazutoshi Nagayama, Tadashi Ashikaga | 1997-11-18 |
| 5682073 | Hybrid excitation type permanent magnet synchronous motor | — | 1997-10-28 |
| 5491938 | High damping structure | Naoki Niwa, Takuji Kobori, Motoichi Takahashi, Narito Kurata, Masatoshi Ishida +1 more | 1996-02-20 |
| 5347771 | High damping device for seismic response controlled structure | Takuji Kobori, Koji Ishii, Motoichi Takahashi, Yoshinori Matsunaga, Naoki Niwa +2 more | 1994-09-20 |
| 5311709 | Variable damping device for seismic response controlled structure | Takuji Kobori, Yoshinori Matsunaga, Naoki Niwa, Hironori Sasaki, Ichiro Arimoto +1 more | 1994-05-17 |
| 5298819 | Winding arrangement for a tubular linear motor | Manabu Suganuma, Keiichi Kohroki, Masayukii Kawaguchi | 1994-03-29 |
| 5155797 | Control system for controlling revolution speed of electric motor | Masakatsu Nomura, Tadashi Ashikaga, Michitaka Hori, Tadashi Ichioka | 1992-10-13 |