Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D684114 | Storage battery | Kazuumi Otani, Junichi Saito | 2013-06-11 |
| D645814 | Storage battery | Kazuumi Otani, Takeshi Nabesaka | 2011-09-27 |
TN
Takumi Nakahira
Overall (All Time): #2,073,394 of 4,157,543Top 50%
2
Patents All Time