Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4973311 | Aspirator for endoscopic system | Mitsuru Sato, Hiroyuki Umeda, Toshinori Nishizawa | 1990-11-27 |
| 4844052 | Apparatus for transmitting liquid and gas in an endoscope | Mitsuru Sato, Hiroyuki Umeda, Toshinori Nishizawa | 1989-07-04 |
| 4836187 | Constant pressure apparatus of an endoscope | Mitsuru Sato, Hiroyuki Umeda, Toshinori Nishizawa | 1989-06-06 |
| 4805597 | Endoscopic apparatus | — | 1989-02-21 |