Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D319641 | Telephone | Fumiharu Ota, Satoshi Yonai | 1991-09-03 |
| D306311 | Electronic calculator | Kazuyoshi Kojima | 1990-02-27 |
TS
Tetsuo Sugi
Overall (All Time): #2,318,733 of 4,157,543Top 60%
2
Patents All Time