Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861674 | Magnetic recording medium | Hiroo Inaba, Akira Ushimaru, Nobuyuki Yamamoto, Noburo Hibino | 1989-08-29 |
KI
Kenzo Iwamoto
Overall (1989): #88,634 of 140,708Top 65%
1
Patents 1989