Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867649 | Refrigerating system | Atsushi Suginuma, Yukio Takahashi, Kenji Tojo, Kunihiko Takao | 1989-09-19 |
| 4861245 | Scroll compressor with sealed pressure space biasing the orbiting scroll member | Kenji Tojo, Kazutaka Suefuji, Yozo Nakamura | 1989-08-29 |
| 4853870 | Electron beam exposure system | Nobuyuki Yasutake, Jun-ichi Kai, Hiroshi Yasuda | 1989-08-01 |
| 4815943 | Variable displacement wobble plate compressor with capacity control valve | Kenji Emi, Akira Tezuka, Kosaku Sayo, Toshikazu Ito, Toshio Sudo +9 more | 1989-03-28 |