Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5196231 | Optical recording media | Sumio Hirose, Tadashi Koike, Shin Aihara, Keiji Ueno | 1993-03-23 |
| 5132153 | Optical recording media | Sumio Hirose, Tadashi Koike, Shin Aihara, Keiji Ueno | 1992-07-21 |
| 4977064 | Optical recording medium and process for fabricating the same | Hiroshi Sukawa, Sumio Hirose, Tomoyoshi Sasakawa | 1990-12-11 |
| 4859569 | Optical recording medium | Sumio Hirose, Hiroshi Ozawa, Kenji Abe, Yoichi Hosono, Tadashi Koike | 1989-08-22 |
| 4752941 | Diversity receiving system of in-phase combination type | Masaharu Morisaki | 1988-06-21 |
| 4719613 | Optical recording medium having a reflective recording layer including a resinous binder and a naphthalocyanine dye | Sumio Hirose, Hiroshi Ozawa, Kenji Abe, Yoichi Hosono, Tadashi Koike | 1988-01-12 |