Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5328816 | Process for producing optical recording medium | Miki Tamura, Hiroyuki Sugata, Osamu Kanome, Yukitoshi Okubo, Mizuho Hiraoka | 1994-07-12 |
| 5324188 | Roller stamper for molding a substrate sheet to become an information recording medium | Tsuyoshi Santoh, Hiroyuki Sugata, Hirofumi Kamitakahara, Hitoshi Yoshino, Osamu Kanome +2 more | 1994-06-28 |
| 5310333 | Roll stamper for molding substrate used for optical recording medium | Tetsuya Sato, Osamu Kanome, Hiroyuki Sugata | 1994-05-10 |
| 5281373 | Process for producing substrate sheet for optical recording media | Miki Tamura, Tsyuoshi Santoh | 1994-01-25 |