Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5591542 | Battery diaphragm and battery with such a diaphragm | Takeshi Sakamoto, Koji Hara | 1997-01-07 |
AH
Akira Harada
Overall (1997): #180,143 of 185,788Top 100%
1
Patents 1997