Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11331318 | Arterial oxygen saturation degree improver | Satoru Furukawa | 2022-05-17 |
| 4702201 | Soundproof type engine working machine | Tetsuo Iida, Atsushi Abe, Makoto Tsuchida | 1987-10-27 |