Issued Patents All Time
Showing 25 most recent of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11959670 | Refrigerant compressor and freezer including same | Yoshinori Ishida, Ko Inagaki, Hiroyuki Kawano | 2024-04-16 |
| 11143442 | Refrigerant compressor and freezer including same | Yoshinori Ishida, Ko Inagaki, Hiroyuki Kawano | 2021-10-12 |
| 10344749 | Hermetic compressor and refrigeration device | Hiroyuki Kawano | 2019-07-09 |
| 10344781 | Control system, work machine, and control method | Yuta Kamoshita, Tadashi Kawaguchi, Teruo Akiyama, Kenji Oshima, Koji Saito | 2019-07-09 |
| 10017917 | Drive device of construction machine | Tadashi Kawaguchi, Teruo Akiyama, Koji Saito, Takayuki Watanabe | 2018-07-10 |
| 9845814 | Hydraulic drive system | Teruo Akiyama, Koji Saito, Takayuki Watanabe, Kenji Sasano | 2017-12-19 |
| 9810246 | Hydraulic drive system | Teruo Akiyama, Kenji Oshima, Koji Saito | 2017-11-07 |
| 9790966 | Hydraulic drive system | Teruo Akiyama, Koji Saito, Koji Yamashita | 2017-10-17 |
| 9709076 | Hydraulic drive system | Teruo Akiyama, Kenji Oshima, Kenji Sasano | 2017-07-18 |
| 9695842 | Hydraulic drive system | Teruo Akiyama, Koji Saito, Takayuki Watanabe | 2017-07-04 |
| 9683585 | Hydraulic drive system | Teruo Akiyama, Koji Saito, Takayuki Watanabe, Koji Yamashita | 2017-06-20 |
| 9617986 | Hermetic compressor | Ko Inagaki | 2017-04-11 |
| 9497586 | Radio communication system and mobile information terminal | Ryutan Akizuki, Yutaka Ikeda | 2016-11-15 |
| 9328480 | Hydraulic excavator | Teruo Akiyama, Kenji Oshima, Kenji Sasano | 2016-05-03 |
| 9074600 | Rotary compressor | Tsuyoshi Karino, Daisuke Funakoshi, Kiyoshi Sawai | 2015-07-07 |
| 8985978 | Scroll compressor with bypass holes | Hiroaki Nakai, Hirofumi Yoshida, Tsuyoshi Karino, Ryuichi Ohno, Shingo Oyagi | 2015-03-24 |
| 8939742 | Compressor with steel and cast iron sliding materials | Masao Nakano, Tsuyoshi Karino | 2015-01-27 |
| 7942648 | Air pump | Atsushi Sakuda, Tatsuya Nakamoto, Ryuichi Ohno, Kiyoshi Sawai, Hiroyuki Fukuhara +1 more | 2011-05-17 |
| 7905715 | Scroll compressor having a fixed scroll part and an orbiting scroll part | Akira Hiwata, Yoshiyuki Futagami, Teruyuki Akazawa, Kiyoshi Sawai, Hidenobu Shintaku +1 more | 2011-03-15 |
| 7699591 | Scroll compressor with surface processed orbiting scroll plate back surface | Yoshiyuki Futagami, Akira Hiwata, Hidenobu Shintaku | 2010-04-20 |
| 7632084 | Oilless rotary vane pump having open ends of vane grooves being inclined rearward in the rotation direction | Kiyoshi Sawai, Atsushi Sakuda, Tatsuya Nakamoto, Ryuichi Ohno | 2009-12-15 |
| 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, Yoshiyuki Futagami, Akira Hiwata, Teruyuki Akazawa | 2009-11-10 |
| 7458789 | Scroll compressor | Akira Hiwata, Takashi Morimoto, Yoshiyuki Futagami, Kiyoshi Sawai | 2008-12-02 |
| 6935852 | Scroll compressor having a back pressure chamber comprising high and middle pressure chambers | Atsushi Sakuda, Akira Hiwata, Kiyoshi Sawai | 2005-08-30 |
| 6887051 | Scroll air supply apparatus having a motor shaft and a mechanism shaft | Atsushi Sakuda, Kiyoshi Sawai | 2005-05-03 |