Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10718734 | Method for determining antirust effect of treated water | Yasuo Tajiri, Mitsuo Ishikawa, Nobuyuki Kamiya | 2020-07-21 |
| 5942885 | Power compensating device for battery | Masaaki Imamura | 1999-08-24 |