Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4230323 | Automatic record player | Hiromichi Shiozaki, Eiji Yamasaki | 1980-10-28 |
ST
Sigeki Tsuji
Overall (All Time): #4,122,626 of 4,157,543Top 100%
1
Patents All Time