Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827463 | Disc memory device | Takeo Motoyoshi, Naoyuki Nakatsukasa, Katsufusa Tanaka | 1989-05-02 |
TY
Tooru Yamashita
Overall (1989): #47,789 of 140,708Top 35%
1
Patents 1989