Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879992 | Rigid electronic endoscope | Takeaki Nakamura, Jun Yoshinaga, Masahide Kanno, Hisao Yabe, Takeshi Yokoi +3 more | 1989-11-14 |
| 4867138 | Rigid electronic endoscope | Tetsumaru Kubota, Takeaki Nakamura, Minoru Okabe, Hitoshi Karasawa, Hiroyuki Kusunoki +4 more | 1989-09-19 |
| 4862872 | Endoscope and endoscope washing apparatus | Hisao Yabe, Masahide Kanno, Jun Yoshinaga, Takeshi Yokoi, Kazuhiko Ozeki +3 more | 1989-09-05 |
| 4803550 | Imaging apparatus having illumination means | Hisao Yabe, Kenji Kimura, Masahide Kanno, Kiyoshi Tsuji, Jun Yoshinaga +5 more | 1989-02-07 |