Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4973311 | Aspirator for endoscopic system | Keiichi Iwakoshi, Mitsuru Sato, Hiroyuki Umeda | 1990-11-27 |
| 4844052 | Apparatus for transmitting liquid and gas in an endoscope | Keiichi Iwakoshi, Mitsuru Sato, Hiroyuki Umeda | 1989-07-04 |
| 4836187 | Constant pressure apparatus of an endoscope | Keiichi Iwakoshi, Mitsuru Sato, Hiroyuki Umeda | 1989-06-06 |