Issued Patents All Time
Showing 51–65 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5974021 | Determination of optimal recording power in optical disk recording and retrieving device | Shigeki Yamazaki, Toshimitsu Kaku | 1999-10-26 |
| 5848045 | Method for recording and reading an optical disk | Fumiyoshi Kirino, Hiroshi Ide, Hisataka Sugiyama, Atsushi Saito, Hiroyuki Tsuchinaga +6 more | 1998-12-08 |
| 5828636 | Optical disk apparatus having optimized focus shift mechanism control | Kiyoshi Matsumoto, Hiroyuki Tsuchinaga | 1998-10-27 |
| 5793736 | Optical information recording and reproducing control apparatus and control method of the same | Masahiko Ishimaru | 1998-08-11 |
| 5732061 | Recording method using trial write test pattern | Fumiyoshi Kirino, Takeshi Maeda, Hiroshi Ide, Toshimitsu Kaku, Seiichi Mita +1 more | 1998-03-24 |
| 5703855 | Optical disk apparatus and recording and reading method for an optical disk using the same | Fumiyoshi Kirino, Horishi Ide, Hisataka Sugiyama, Atsushi Saito, Hiroyuki Tsuchinaga +6 more | 1997-12-30 |
| 5642343 | Magnetooptic disc apparatus and recording medium | Kazuo Shigematsu, Seiichi Mita, Toshimitsu Kaku, Takeshi Maeda, Fumiyoshi Kirino +2 more | 1997-06-24 |
| 5590111 | Method of controlling recording of optical records | Fumiyoshi Kirino, Takeshi Maeda, Hiroshi Ide, Toshimitsu Kaku, Seiichi Mita +1 more | 1996-12-31 |
| 5463600 | Magneto-optical recording system using recording waveform having a plurality of power levels providing high recording density | Fumiyoshi Kirino, Atsushi Saito, Hiroshi Ide, Hiroyuki Tsuchinaga, Takeshi Maeda +1 more | 1995-10-31 |
| 5457666 | Light modulation method for forming a mark in magneto-optical recording system | Hiroshi Ide, Fumiyoshi Kirino, Takeshi Maeda, Hiroyuki Tsuchinaga, Toshimitsu Kaku +2 more | 1995-10-10 |
| 5450390 | Method and apparatus for writing and reading information and storage medium used for the same | Atsushi Saito | 1995-09-12 |
| 5333126 | Information recording method and optical disk apparatus using same | Yasushi Fukuda, Hiroshi Ide, Atsushi Saito, Takeshi Maeda, Fumiyoshi Kirino | 1994-07-26 |
| 5268912 | Harmonic light source capable of being optically modulated and optical information processing apparatus employing the same | Kimio Tatsuno, Michael McLoughlin | 1993-12-07 |
| 5263015 | Magneto-optical recording media and overwrite recording method using the same | Toshio Niihara, Harukazu Miyamoto, Makoto Miyamoto, Keikichi Andoo, Atsushi Saito +3 more | 1993-11-16 |
| 4873678 | Optical head and optical information processor using the same | Shigeru Nakamura, Sadatsugi Machida | 1989-10-10 |