Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4336308 | Magnetic recording media | Yasuyuki Yamada, Nobuo Tsuji | 1982-06-22 |
| 4333988 | Magnetic recording media | Yasuyuki Yamada, Tatsuji Kitamoto | 1982-06-08 |
KM
Kenichi Masuyama
Overall (1982): #11,198 of 81,411Top 15%
2
Patents 1982