Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5863703 | Optical information recording medium using a phthalocyanine compound | Tatsuya Tomura, Tsutomu Sato | 1999-01-26 |
| 5677025 | Optical information recording medium near infrared absorbing material therefor | Tatsuya Tomura, Tsutomu Sato | 1997-10-14 |