Issued Patents All Time
Showing 51–72 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7116624 | Optical disc and physical address format | Atsushi Nakamura, Shigeru Furumiya, Mamoru Shoji, Takashi Ishida, Hiromichi Ishibashi | 2006-10-03 |
| 7099244 | Wobble demodulator and wobble demodulation method | Kohei Nakata, Toyoji Gushima, Makoto Usui, Kazuya Ohshima | 2006-08-29 |
| 7075883 | Optical disk having wobble patterns representing control information | Atsushi Nakamura, Shigeru Furumiya, Hiromichi Ishibashi, Takashi Ishida, Toyoji Gushima | 2006-07-11 |
| 7038993 | Optical disc medium having a plurality of sector groups, a recording method thereof and recorder | Hiromichi Ishibashi, Yoshiharu Kobayashi, Atsushi Nakamura, Takashi Ishida | 2006-05-02 |
| 7027374 | Optical disk having wobble patterns representing control information | Atsushi Nakamura, Shigeru Furumiya, Hiromichi Ishibashi, Takashi Ishida, Toyoji Gushima | 2006-04-11 |
| 6996053 | Optical recording medium, optical reproduction apparatus, and optical reproduction method | Atsushi Nakamura, Mamoru Shoji, Takashi Ishida, Yoshiharu Kobayashi, Hiromichi Ishibashi +1 more | 2006-02-07 |
| 6937551 | PRML detector having a viterbi decoder outputting temporary judgement results | Harumitsu Miyashita, Shinichi Konishi, Atsushi Nakamura, Takeshi Nakajima | 2005-08-30 |
| 6934233 | Waveform equalizer for a reproduction signal obtained by reproducing marks and non-marks recorded on a recording medium | Harumitsu Miyashita, Shinichi Konishi, Atsushi Nakamura, Takeshi Nakajima | 2005-08-23 |
| 6922384 | Information reproducing apparatus | Harumitsu Miyashita, Hiromichi Ishibashi, Shigeru Furumiya, Masahito Nakao | 2005-07-26 |
| 6804190 | High density phase-change type optical disk having a data efficiency of more than 80 percent | Takashi Ishida, Hiromichi Ishibashi, Mamoru Shoji, Atsushi Nakamura, Shigeru Furumiya | 2004-10-12 |
| 6791926 | Method and device for finding conditions on recording pulse of optical disk | Shigeru Furumiya, Mamoru Shoji | 2004-09-14 |
| 6757239 | Optical disk having wobble patterns and block identification marks | Atsushi Nakamura, Shigeru Furumiya, Hiromichi Ishibashi, Takashi Ishida, Toyoji Gushima | 2004-06-29 |
| 6724708 | Optical disk medium and method and apparatus for reading information | Hiromichi Ishibashi, Shigeru Furumiya, Atsushi Nakamura, Takashi Ishida | 2004-04-20 |
| 6678230 | Waveform equalizer for a reproduction signal obtained by reproducing marks and non-marks recorded on a recording medium | Harumitsu Miyashita, Shinichi Konishi, Atsushi Nakamura, Takeshi Nakajima | 2004-01-13 |
| 6674700 | Optical disk having sub-blocks and sub-block indentification marks | Atsushi Nakamura, Shigeru Furumiya, Hiromichi Ishibashi, Takashi Ishida, Toyoji Gushima | 2004-01-06 |
| 6665250 | Optical disc playback and playback method | Hiromichi Ishibashi, Shigeru Furumiya | 2003-12-16 |
| 6608810 | Optical disk comprising a positional information section and a sync mark section each having a wobble pattern | Atsushi Nakamura, Shigeru Furumiya, Hiromichi Ishibashi, Takashi Ishida, Toyoji Gushima | 2003-08-19 |
| 6577590 | Optical disk having wobble patterns | Atsushi Nakamura, Shigeru Furumiya, Hiromichi Ishibashi, Takashi Ishida, Toyoji Gushima | 2003-06-10 |
| 6510116 | Optical information recording/reproducing method and optical information recording/reproducing apparatus | Naoyasu Miyagawa, Takashi Ishida, Kenji Koishi, Shigeru Furumiya | 2003-01-21 |
| 6359846 | Recording medium recording apparatus and recording method | Mamoru Shoji, Takashi Ishida, Atsushi Nakamura | 2002-03-19 |
| 6349081 | Recording medium, recording apparatus and recording method | Mamoru Shoji, Takashi Ishida, Atsushi Nakamura | 2002-02-19 |
| 6157609 | Recording medium, recording apparatus and recording method | Mamoru Shoji, Takashi Ishida, Atsushi Nakamura | 2000-12-05 |