Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7974158 | Optical disk and optical recording/reproducing device | Takahashi Akira, Terashima Shigeo | 2011-07-05 |
YH
Yamaoka Hideyoshi
Overall (All Time): #3,255,412 of 4,157,543Top 80%
1
Patents All Time