Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805618 | Oviduct closing apparatus | Yasuhiro Ueda, Isao Nagai, Naruto Shinkai, Toshiki Terayama | 1989-02-21 |
| 4794913 | Suction control unit for an endoscope | Hideki Shimonaka, Yosuke Yoshimoto | 1989-01-03 |