Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4621263 | Vibration telemetering system | Toshio Takenaka, Hiroshi Sugimoto | 1986-11-04 |
YY
Yoshinobu Yamanaka
Overall (All Time): #4,004,514 of 4,157,543Top 100%
1
Patents All Time