Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843484 | Information recording disc with composite index codes and its playback method | Hitoshi Kanamaru, Tsuyoshi Watanabe, Takahumi Shiba | 1989-06-27 |
SK
Shoichi Katagiri
Overall (1989): #57,666 of 140,708Top 45%
1
Patents 1989