Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9608504 | Vibration-based electric power generator | — | 2017-03-28 |
| 9097206 | Stirling engine and method of removing impurities in a heat-transfer tube group in a power device or a power-generating device which uses a stirling engine | Tsutomu Nakatsuka, Taeko Tahara, Osamu Sakamoto | 2015-08-04 |
| 8899037 | Stirling engine | Tsutomu Nakatsuka, Taeko Tahara, Osamu Sakamoto | 2014-12-02 |
| 7905715 | Scroll compressor having a fixed scroll part and an orbiting scroll part | Akira Hiwata, Yoshiyuki Futagami, Noboru Iida, Kiyoshi Sawai, Hidenobu Shintaku +1 more | 2011-03-15 |
| 7640740 | Stirling engine | Takeshi Hoshino, Koichi Hirata, Masakuni Kawada | 2010-01-05 |
| 7614859 | Scroll compressor with certain pressure ratio between discharge pressure and suction pressure and with certain ratio of diameter of orbiting mirror plate and outer diameter of the annular seal | Kiyoshi Sawai, Noboru Iida, Yoshiyuki Futagami, Akira Hiwata | 2009-11-10 |
| 6742998 | Linear compressor with vibration canceling spring arrangement | Sadao Kawahara, Nobuaki Ogawa, Yasuhiro Asaida, Masaru Nagaike, Hiroshi Hasegawa | 2004-06-01 |
| 6626651 | Linear compressor | Sadao Kawahara, Sugimatsu Hasegawa | 2003-09-30 |
| 6565332 | Linear compressor | Sadao Kawahara | 2003-05-20 |
| 6506032 | Linear compressor | Sadao Kawahara | 2003-01-14 |
| 6328544 | Linear compressor | Sadao Kawahara | 2001-12-11 |
| 6273688 | Linear compressor | Sadao Kawahara | 2001-08-14 |
| 6250895 | Linear compressor | Sadao Kawahara | 2001-06-26 |
| 5634782 | Scroll compressor having a horseshoe-shaped partition wall on the stationary end plate | Sadao Kawahara, Akihiko Shimizu, Yoshifumi Abe | 1997-06-03 |
| 5597296 | Scroll compressor having a check valve received in a stationary scroll member recess | Sadao Kawahara, Akihiko Shimizu, Yoshifumi Abe | 1997-01-28 |
| 5562436 | Scroll compressor having improved orbital drive mechanism | Sadao Kawahara, Kunio Iwanami, Masafumi Fukushima, Akihiko Shimizu | 1996-10-08 |
| 5536152 | Scroll compressor having improved orbital drive mechanism | Sadao Kawahara, Takao Fujita, Tatsuhisa Taguchi, Masahiko Makino, Nobuaki Ogawa | 1996-07-16 |