Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4260343 | Vane compressor | Masami Ohtani, Naoki Hashizume | 1981-04-07 |
| 4248575 | Rotary fluid pressure biased vane compressor with pressure release means | Masami Ohtani, Naoki Hashizume | 1981-02-03 |