Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827463 | Disc memory device | Naoyuki Nakatsukasa, Katsufusa Tanaka, Tooru Yamashita | 1989-05-02 |
TM
Takeo Motoyoshi
Overall (1989): #52,856 of 140,708Top 40%
1
Patents 1989