Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870950 | Endoscope system | Kouji Kanbara, Kenichi Kikuchi, Yoshihito Shimizu, Shinichiro Hattori, Yoshikazu Tojo +6 more | 1989-10-03 |
| 4867136 | Endoscope apparatus | Akira Suzuki, Susumu Takahashi, Takeaki Nakamura, Takashi Tsukaya, Tsutomu Yamamoto +19 more | 1989-09-19 |
| 4841949 | Endoscope with a device for raising a medical instrument | Yoshihito Shimizu | 1989-06-27 |