Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D306286 | Optical disk storage | Masaharu Sawatani | 1990-02-27 |
| 4877667 | Optical disc with inhibited thermal distortion | Michinobu Hattori, Hidemitsu Fujisawa | 1989-10-31 |
AK
Akio Kusaura
Overall (All Time): #2,322,107 of 4,157,543Top 60%
2
Patents All Time