Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8194518 | Optical disc device and optical disc playback method | — | 2012-06-05 |
| 7786667 | Organic electroluminescent element comprising a luminescent assist layer | Akiko Tsujii, Takao SHISHIDO | 2010-08-31 |
| 7535811 | Disk device and disk reproduction method that prevents a wrong reproducing operation when a defect on the disk is determined | Yukiyasu Tatsuzawa, Koichi Otake, Hiroyuki Moro, Toshihiko Kaneshige | 2009-05-19 |
| 7466253 | Integrated circuit, self-test method for the integrated circuit, and optical disc apparatus including the integrated circuit | Yukiyasu Tatsuzawa, Takayuki Mori, Takahiro Nango | 2008-12-16 |
| 7403463 | Method and apparatus for filtering read signal to three or more cutoff frequencies with two or more bits control line throughout three or more consecutive periods | Toshihiko Kaneshige, You Yoshioka | 2008-07-22 |
| 7397751 | Optical disk apparatus, method of recording information, and information recording medium | Toshihiko Kaneshige, Koichi Otake, Yukiyasu Tatsuzawa, Hiroyuki Moro | 2008-07-08 |
| 7379408 | Disk apparatus and method using plural tap coefficient equalization | Yukiyasu Tatsuzawa, Koichi Otake, Hiroyuki Moro, Toshihiko Kaneshige | 2008-05-27 |
| 7370266 | Digital signal decoding device and digital signal decoding method | — | 2008-05-06 |
| 6980385 | Apparatus for information recording and reproducing | Takatoshi Kato, Takushi Nishiya, Takashi Nara, Nobuaki Nakai, Hiroshi Ide +2 more | 2005-12-27 |
| 6975252 | Disk apparatus and disk reproducing method | Koichi Otake, Yukiyasu Tatsuzawa, Hiroyuki Moro, Toshihiko Kaneshige | 2005-12-13 |
| 6812868 | Run length limited code generation method, run length limited code recording/reproducing apparatus, and run length limited code recording/reproduction method | Akihito Ogawa, Yutaka Kashihara | 2004-11-02 |
| 6791776 | Apparatus for information recording and reproducing | Takatoshi Kato, Takushi Nishiya, Takashi Nara, Nobuaki Nakai, Hiroshi Ide +2 more | 2004-09-14 |
| 5940416 | Digital signal decoding apparatus and a decoding method used therein | Takushi Nishiya, Shoichi Miyazawa, Seiichi Mita, Yoichi Uehara, Takashi Nara +1 more | 1999-08-17 |
| 5844741 | System for reproducing high-density magnetic record data with viterbi detector for generating quadripartite reproduction data | Takushi Nishiya, Takashi Nara, Terumi Takashi | 1998-12-01 |
| 5625632 | Magnetic disk drive including a data discrimination apparatus capable of correcting signal waveform distortion due to intersymbol interference | Yoshiteru Ishida, Kazunori Iwabuchi, Hiromi Matsushige | 1997-04-29 |
| 5553104 | Information recording/reproducing apparatus having a clock timing extraction circuit for extracting a clock signal from an input data signal | Terumi Takashi, Akihiko Hirano, Kazunori Iwabuchi, Yoshiteru Ishida, Kazuhisa Shiraishi +1 more | 1996-09-03 |
| 5448424 | AGC circuit and recording and reproducing apparatus using AGC circuit | Akihiko Hirano, Terumi Takashi, Kazunori Iwabuchi, Yoshiteru Ishida, Minoru Kosuge | 1995-09-05 |