Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9712091 | Power tool and controller | Fumiaki Sawano, Masaaki Okada, Hidekazu Yuasa | 2017-07-18 |
| 7254955 | Heat exchange apparatus and refrigerating machine | Masahisa Otake, Koji Sato, Hiroshi Mukaiyama, Ichiro Kamimura | 2007-08-14 |
| 7155927 | Exhaust heat utilizing refrigeration system | Kazuo Matsumoto | 2007-01-02 |
| 7082989 | Heat exchanger | Masahiro Kobayashi, Hideaki Mukaida, Hiroshi Mukaiyama, Masafumi Ueda, Shigeya Ishigaki +1 more | 2006-08-01 |
| 5970721 | Mixed refrigerant injection method | Ichiro Kamimura, Kouji Satou, Tetuya Masuda | 1999-10-26 |
| 5966947 | Method of returning refrigerator oil of air conditioner | Ichiro Kamimura, Tetsuya Masuda, Koji Sato | 1999-10-19 |
| 5699675 | Heat exchanger and cooling apparatus mounted with the same | Toshitake Nagai, Yonezo Ikumi, Takahide Kakinuma, Koji Sato, Masato Watanabe | 1997-12-23 |
| 5634352 | Refrigeration cycle using six-way change-over valve | Toshitake Nagai, Yonezo Ikumi, Takahide Kakinuma, Koji Sato | 1997-06-03 |
| 4894998 | Absorption system hot and cold water supply apparatus | Toshiyuki Kaneko, Shigenori Tateshita, Hisao Honda, Takaki Iwaya | 1990-01-23 |