Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854640 | Apparatus for raising seat of chair | — | 1989-08-08 |
| 4810967 | Position sensor for detecting angular position | Iwao Shimane, Tsuneo Konno | 1989-03-07 |
| 4808934 | Position sensor for detecting angular position | Iwao Shimane, Tsuneo Konno | 1989-02-28 |
| 4796354 | Method of manufacturing a position sensor for detecting angular position | Iwao Shimane, Tsuneo Konno | 1989-01-10 |