Issued Patents 1997
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 (1997): #183,399 of 185,788Top 100%
1
Patents 1997