Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5138572 | Optical information memory medium including indium (In) and bismuth (Bi) | Nagaaki Koshino, Miyozo Maeda, Yasuyuki Goto, Kenichi Utsumi, Akira Ushioda +2 more | 1992-08-11 |
| 5072423 | Optical information memory medium recording and erasing information including gallium and antimony | Nagaaki Koshino, Miyozo Maeda, Yasuyuki Goto, Kenichi Utsumi, Akira Ushioda +2 more | 1991-12-10 |
| 5058061 | Method for recording information in an optical information memory medium including indium (In) and Antimony (Sb) | Nagaaki Koshino, Miyozo Maeda, Yasuyuki Goto, Kenichi Utsumi, Akira Ushioda +2 more | 1991-10-15 |
| 4947372 | Optical information memory medium for recording and erasing information | Nagaaki Koshino, Miyozo Maeda, Yasuyuki Goto, Kenichi Utsumi, Akira Ushioda +2 more | 1990-08-07 |
| 4627040 | Optical disk tracking apparatus | Shigeru Arai, Akira Minami, Koichi Ogawa | 1986-12-02 |