Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4922736 | Key device incorporating an electronic circuit | Akira Tanaka, Ryuji Mori | 1990-05-08 |
TA
Takanori Arima
Oki Electric Co.: 1 patents #3 of 39Top 8%
Overall (All Time): #3,902,131 of 4,157,543Top 95%
1
Patents All Time