Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE36624 | Optical recording media and information recording and reproducing units | Yoshihito Maeda, Isao Ikuta, Hisashi Andoh, Masaichi Nagai, Yoshio Sato +2 more | 2000-03-21 |
| 5484686 | Optical recording media and information recording and reproducing units | Yoshihito Maeda, Isao Ikuta, Hisashi Andoh, Masaichi Nagai, Yoshio Sato +2 more | 1996-01-16 |