Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883468 | Medical tool introduction cannula and method of manufacturing the same | Tadashi Kousai, Toshinobu Ishida | 1989-11-28 |
| 4874374 | Medical tool introduction cannula and method of manufacturing the same | Tadashi Kousai, Toshinobu Ishida | 1989-10-17 |
| 4830805 | Molding a guiding tube for medical instruments | Tadashi Kousai, Toshinobu Ishida | 1989-05-16 |