Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10841681 | Sound generating device | Akihiko Enamito, Osamu Nishimura | 2020-11-17 |
| 10578587 | Deterioration diagnosis method, a deterioration diagnosis system, and a sensor | Kazuo Watabe, Osamu Nishimura, Michihiko Inukai | 2020-03-03 |