Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5354590 | Optical recording medium | Miki Tamura | 1994-10-11 |
| 5324188 | Roller stamper for molding a substrate sheet to become an information recording medium | Hiroyuki Sugata, Masataka Yashima, Hirofumi Kamitakahara, Hitoshi Yoshino, Osamu Kanome +2 more | 1994-06-28 |
| 5281371 | Method and apparatus for forming substrate sheet for optical recording medium | Miki Tamura, Osamu Kanome | 1994-01-25 |
| 5275925 | Infrared-absorptive compound containing optical recording medium | Chieko Mihara, Hiroyuki Sugata, Tetsuro Fukui | 1994-01-04 |