Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6333089 | Substrate for information recording disk, mold and stamper for injection molding substrate, and method for making stamper, and information recording disk | Hiroyuki Hirata, Tatsuo Araki, Osamu Ishizaki, Hideo Daimon, Tsuyoshi Maro +1 more | 2001-12-25 |
| 6127017 | Substrate for information recording disk, mold and stamper for injection molding substrate, and method for making stamper, and information recording disk | Hiroyuki Hirata, Tatsuo Araki, Osamu Ishizaki, Hideo Daimon, Tsuyoshi Maro +1 more | 2000-10-03 |