Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4956214 | Information recording medium, production process and molding die for substrate therefor | Hiroyuki Imataki, Tomoyuki Tamura, Tetsuya Satoh | 1990-09-11 |
| 4925733 | Magnetic recording medium | Hiroyuki Imataki | 1990-05-15 |
| 4876042 | Molding processing using a reproducible molding die | Hiroyuki Imataki, Tomoyuki Tamura, Tetsuya Satoh | 1989-10-24 |
| 4871649 | Optical recording medium and optical recording method using the same | Hiroyuki Imataki, Sachiko Ichikawa, Yoshihiro Ogawa, Hitoshi Yoshino | 1989-10-03 |