Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879992 | Rigid electronic endoscope | Shinichi Nishigaki, Takeaki Nakamura, Jun Yoshinaga, Masahide Kanno, Hisao Yabe +3 more | 1989-11-14 |
| 4869256 | Endoscope apparatus | Masahide Kanno, Hisao Yabe, Jun Yoshinaga, Takeshi Yokoi | 1989-09-26 |