Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837651 | Disc cartridge | Kimio Tanaka, Haruo Shiba | 1989-06-06 |
TI
Toshihiko Ishida
Overall (1989): #48,986 of 140,708Top 35%
1
Patents 1989