Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7277369 | Optical disk capable of disabling incompatible recorder | Morihiro Murata | 2007-10-02 |
| 5812502 | Optical disc reading device | Kenichiro Takeshita | 1998-09-22 |
AH
Akio Hirai
Overall (All Time): #2,161,649 of 4,157,543Top 55%
2
Patents All Time