Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11009025 | Oil-cooled screw compressor | Hideharu Tanaka, Masahiko Takano, Takeshi Tsuchiya | 2021-05-18 |
| 9145892 | Water injected scroll air compressor | Natsuki Kawabata, Kazuaki Shiinoki, Masakazu Aoki | 2015-09-29 |
| 8882476 | Oil-flooded screw compressor, motor drive system, and motor control | Masaru Yamasaki, Toshiyuki Ajima, Masaharu Senoo, Hideharu Tanaka, Norinaga Suzuki | 2014-11-11 |
| 8721308 | Water injected scroll air compressor | Kazuaki Shiinoki, Natsuki Kawabata | 2014-05-13 |
| 8672647 | Water injected scroll air compressor | Natsuki Kawabata, Kazuaki Shiinoki, Masakazu Aoki | 2014-03-18 |
| 8585376 | Water-injection type scroll air compressor | Kazuaki Shiinoki, Natsuki Kawabata, Hirokatsu Kohsokabe | 2013-11-19 |
| 8491280 | Oil-flooded screw compressor, motor drive system, and motor control device | Masaru Yamasaki, Toshiyuki Ajima, Masaharu Senoo, Hideharu Tanaka, Norinaga Suzuki | 2013-07-23 |
| 8202057 | Oil-free scroll compressor | Hirokatsu Kohsokabe, Kazuaki Shiinoki, Toshiaki Yabe | 2012-06-19 |
| 8033796 | Motor-mounted internal gear pump and manufacturing method thereof and electronic equipment | Masato Nakanishi, Yuuichi Yanagase, Eiji Sato, Kouji Aizawa | 2011-10-11 |
| 7862314 | Screw compressor | Kohtaro CHIBA, Hideharu Tanaka | 2011-01-04 |
| 7081311 | Fuel cell system | Fumio Takeda, Masayuki Kasahara, Hitoshi Nishimura | 2006-07-25 |
| 7044724 | Screw compressor and method of manufacturing rotors thereof | Kazuhiro Matsumoto, Tomu Kato | 2006-05-16 |
| 7040845 | Screw compressor and method of manufacturing rotors thereof | Kazuhiro Matsumoto, Tomu Kato | 2006-05-09 |
| 7014437 | Screw compressor | Hiroki Ohsumimoto, Masayuki Urashin, Shigekazu Nozawa, Takeshi Hida | 2006-03-21 |
| 6884049 | Screw compressor and method of manufacturing rotor for the same | Takeshi Hida, Masayuki Urashin, Shigekazu Nozawa, Hiroki Ohsumimoto, Atsushi Watanabe | 2005-04-26 |
| 6554595 | Compressor with oil-mist separator | Takeshi Hida, Shigekazu Nozawa, Masayuki Urashin, Hiroki Osumimoto, Atsushi Watanabe | 2003-04-29 |
| 6506039 | Screw compressor | Hiroki Osumimoto, Shigekazu Nozawa, Masayuki Urashin, Takeshi Hida, Atsushi Watanabe | 2003-01-14 |
| 6257855 | Screw fluid machine | Shigekazu Nozawa, Masayuki Urashin, Takeshi Hida, Masakazu Aoki | 2001-07-10 |
| 5314321 | Screw-type rotary fluid machine including rotors having treated surfaces | Akihiko Yamamoto, Toshihiro Yamada, Tatsuo Natori, Kotaro Naya, Motohiro Satoo +3 more | 1994-05-24 |
| 5223052 | Method of treating surfaces of rotors of the screw type rotary machine | Akihiko Yamamoto, Toshihiro Yamada, Tatsuo Natori, Kotaro Naya, Motohiro Satoo +3 more | 1993-06-29 |