Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840818 | Method of making magnetic recording medium | Hiroshi Chikamasa, Yasutami Nojiri | 1989-06-20 |
| 4761874 | Method of making magnetic recording medium | — | 1988-08-09 |
| 4716650 | Method of assembling magnetic recording disk cartridge | Makoto Shimizu, Noriyuki Hoshina, Nobuyuki Adachi, Takashi Kurihara, Tatsuo Shiino | 1988-01-05 |