Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810555 | Magnetic recording medium | Toru Shimozawa, Masaharu Nishimatsu | 1989-03-07 |
SM
Shigeyo Miyamori
Overall (1989): #57,328 of 140,708Top 45%
1
Patents 1989