Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869658 | Prevention against shifting of tip seal of scroll compressor | Kazuaki Sato | 1989-09-26 |
| 4823278 | Method of logic design of integrated circuit | Hideo Kikuchi, Akira Kaneko | 1989-04-18 |