Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830590 | Sliding-vane rotary compressor | Seiji Sumikawa, Yoshio Suzuki, Mitsuya Ono | 1989-05-16 |
| 4810177 | Vane compressor with vane back pressure adjustment | Tsuneori Shibuya, Yutaka Ishizuka, Haruhiko Takada, Teruo Nakamura | 1989-03-07 |