Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5591542 | Battery diaphragm and battery with such a diaphragm | Koji Hara, Akira Harada | 1997-01-07 |
TS
Takeshi Sakamoto
Overall (1997): #71,051 of 185,788Top 40%
1
Patents 1997