Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7940606 | Signal detecting device and signal detecting method | Ariyoshi Nakaoki, Naoto Kojima, Koji Sekiguchi, Kazuhiko Fujiie | 2011-05-10 |
| 6418103 | Initializing a phase-changing optical recording medium using a laser including a high speed shutter | Kazumine Ito, Manami NAKAMURA, Hiroshi Kawase | 2002-07-09 |
| 6312780 | Optical recording medium | Yutaka Kasami, Katsuhiro Seo | 2001-11-06 |
| 6246656 | Reduced thickness of a light transmissive layer for a high density optical disc | Toshiyuki Kashiwagi, Koichi Yasuda, Masahiko Kaneko | 2001-06-12 |
| 6023451 | Optical recording medium and optical disk apparatus | Toshiyuki Kashiwagi, Ariyoshi Nakaoki, Masahiko Kaneko | 2000-02-08 |
| 5972459 | Optical recording medium and optical disk apparatus | Toshiyuki Kashiwagi, Koichi Yasuda, Masahiko Kaneko, Mitsuo Naito, Motohiro Furuki | 1999-10-26 |
| 5923639 | Phase-change optical recording medium having an additive related to the writing line speed | Koichi Yasuda | 1999-07-13 |
| 4972337 | Device for controlling rotation of a magnet used in a magneto-optical recording system | Naoya Eguchi, Hitoshi Okada, Tamotsu Maeda, Susumu Tosaka | 1990-11-20 |
| 4771347 | Magneto-optical recording system | Hideyoshi Horimai, Yoshio Aoki | 1988-09-13 |
| 4600397 | Method of producing discharge display device | Eiji Munemoto, Akihiko Okubora | 1986-07-15 |