Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4662533 | Safety valve device for enclosed cells | Akira Takahashi, Sadao Shoji, Saburo Nakatsuka | 1987-05-05 |
YK
Yoshifumi Kudara
Overall (All Time): #3,973,492 of 4,157,543Top 100%
1
Patents All Time