Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6258509 | Optical information recording medium | Yoshihisa Usami | 2001-07-10 |
| 6225024 | Information recording medium | Shin-ichi Morishima, Yoshihisa Usami | 2001-05-01 |
| 6203876 | Information recording medium | Shinnichi Morishima, Koji Wariishi, Toshio Ishida | 2001-03-20 |
| 5998094 | Optical information recording medium | Toshio Ishida, Koji Wariishi, Shinichi Morishima | 1999-12-07 |
| 5879772 | Information recording medium | Shinnichi Morishima, Koji Wariishi, Toshio Ishida | 1999-03-09 |