Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684874 | Ringtrip judging circuit | Takahiro Watai, Hirokazu Tanaka, Tetsuji Funaki, Kunihiko Gotoh | 1997-11-04 |
TY
Tetsuo Yagyu
Overall (All Time): #3,728,764 of 4,157,543Top 90%
1
Patents All Time