Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6253567 | Ice thermal storage type air conditioner and ice thermal storage tank | Masao Imanari, Toshihiko Fukushima, Sachio Sekiya, Kenji Tokusa, Yoshihiko MOCHIZUKI | 2001-07-03 |
| 6101837 | Ice thermal storage type air-conditioner and ice thermal storage tank | Masao Imanari, Toshihiko Fukushima, Toshio Hatada, Naoto Katsumata | 2000-08-15 |
| 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 |
| 4984974 | Screw type vacuum pump with introduced inert gas | Koutarou Naya, Kazuaki Shiinoki, Tadashi Hayakawa, Kiyoshi Masujima, Riichi Uchida | 1991-01-15 |
| 4773835 | Scroll type pump with wrap curve offset for thermal expansion | Shigeru Machida, Toshio Kushiro, Makoto Uenishi, Kazuaki Miyazaki | 1988-09-27 |
| 4714418 | Screw type vacuum pump | Riichi Uchida, Masatoshi Muramatsu, Kotaro Naya, Tsuneharu Takagi | 1987-12-22 |
| 4664601 | Operation control system of rotary displacement type vacuum pump | Riichi Uchida, Seiji Tsuru | 1987-05-12 |
| 4557679 | Rotary fluid machine with thrust bearing mounting unit | Hidetomo Mori, Osami Matsushita, Michiaki Ida, Shigeru Sasaki | 1985-12-10 |
| 4234296 | Screw compressor | Shigekazu Nozawa, Masaharu Ishii, Mitsuhiko Miyagawa | 1980-11-18 |