Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883711 | Magnetic recording medium | Yoshihiro Shiroishi, Sadao Hishiyama, Hiroyuki Suzuki, Tomoyuki Ohno, Yoshibumi Matsuda +4 more | 1989-11-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883711 | Magnetic recording medium | Yoshihiro Shiroishi, Sadao Hishiyama, Hiroyuki Suzuki, Tomoyuki Ohno, Yoshibumi Matsuda +4 more | 1989-11-28 |