Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854301 | Endoscope apparatus having a chair with a switch | — | 1989-08-08 |
| 4845555 | Electronic endoscope apparatus | Hisao Yabe | 1989-07-04 |
| 4820418 | Water-alcohol separating membrane and method for separation of water and alcohol by the use thereof | Toshihiro Hirotsu | 1989-04-11 |
| 4800869 | Endoscope | — | 1989-01-31 |