Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4475990 | Method of forming lead storage batteries | Takahashi Katsuhiro, Jinbo Hiroyuki, Hoshihara Naoto | 1984-10-09 |
WK
Watanabe Keiichi
Overall (All Time): #4,042,233 of 4,157,543Top 100%
1
Patents All Time