Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5208797 | Magneto-optical recording media and apparatus | Takashi Tokunaga, Tatsuya Fukami, Motohisa Taguchi, Kazuhiko Tsutsumi | 1993-05-04 |
| 5191561 | Magnetooptical recording medium including five magnetic layers for direct overriding by light intensity modulation without an external bias field | Tatsuya Fukami, Kazuhiko Tsutsumi, Takashi Tokunaga | 1993-03-02 |
| 5164287 | Photochromic material and rewritable optical recording medium | Suguru Nagae, Sei Tsunoda, Kenji Nomura, Kazuhiko Tsutsumi | 1992-11-17 |