Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5155715 | Reproducing apparatus | Tetsuo Ueyema, Hideaki Sato, Kenji Ohta | 1992-10-13 |
| 4958337 | Disk recording checking method for determining if a disk is defective by the number of errors present | Toshihiro Yamanaka, Nobuyuki Horie, Toshihisa Deguchi, Takeshi Yamaguchi, Shigemi Maeda +2 more | 1990-09-18 |
| 4939710 | Optical magnetic memory device utilizing non-recorded portions of recording medium to represent data | Hiroshi Fuji, Shigemi Maeda, Takeshi Yamaguchi, Toshihisa Deguchi | 1990-07-03 |
| 4935915 | Beam controller for magneto-optical disc memory system | Tetsuo Fujiwara, Hiroshi Fuji, Takashi Iwaki, Toshihisa Deguchi | 1990-06-19 |
| 4920528 | Method of disk recording using alternative recording tracks | Noriaki Sakamoto, Yoshiki Nishioka, Toshihiro Yamanaka, Nobuyuki Horie, Toshihisa Deguchi +1 more | 1990-04-24 |
| 4868922 | Data modulation/demodulation system utilizing demodulation clocks that differ in phase | Kentaro Tsuji, Tsuneo Fujiwara, Shigemi Maeda, Taeshi Yamaguchi, Toshihisa Deguchi | 1989-09-19 |
| 4843604 | Beam controller for magneto-optical disc memory system | Tetsuo Fujiwara, Hiroshi Fuji, Takashi Iwaki, Toshihisa Deguchi | 1989-06-27 |
| 4788674 | Optical disc record reproducing apparatus | Shigemi Maeda, Toshihisa Deguchi, Takeshi Yamaguchi | 1988-11-29 |
| 4785252 | Waveform processing circuit | Hiroshi Fuji, Takashi Iwaki, Tsuneo Fujiwara, Toshihisa Deguchi | 1988-11-15 |