Issued Patents All Time
Showing 51–75 of 89 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6031796 | Optical disk apparatus | Misao Fukuda, Takayuki Masuda, Keishi Ueno | 2000-02-29 |
| 5991835 | Peripheral data storage device in which time interval used for data transfer from relatively fast buffer memory to relatively slower main memory is selected in view of average of time intervals during which data blocks were recently received from host | Seiichi Ohnuki, Gui Changhao, Hidehiko Murata, Kohji Yamana | 1999-11-23 |
| 5914927 | Optical disk apparatus | Misao Fukuda, Hiroyuki Hishiyama, Keishi Ueno | 1999-06-22 |
| 5717679 | System for noise-free detection of wobbles of optical disk pregrooves | Toshiki Shimizu | 1998-02-10 |
| 5602812 | Reproducing rate control apparatus for optical disk | Tohru Miura, Mitsumasa Kubo | 1997-02-11 |
| 5535183 | Optical disk reproducing device and its seek operation method | Tohru Miura, Mitsumasa Kubo | 1996-07-09 |
| 5521895 | Optical disk reproducing apparatus for controlling the rotational speed of a spindle motor between a CLV control and a CAV control | Tohru Miura, Mitsumasa Kubo | 1996-05-28 |
| 5481517 | Track jump control means for a disk apparatus | Kyosuke Yoshimoto, Yoshiki Nakajima, Kimiyuki Koyanagi, Osamu Ito, Hiroyuki Onda +2 more | 1996-01-02 |
| 5442608 | Disk apparatus having a power consumption reducing mechanism | Yoshiaki Umeda, Teruo Furukawa, Masaharu Ogawa, Kazuhiko Nakane, Tetsuro Araki +4 more | 1995-08-15 |
| 5438557 | Optical disk storage which provides pull-in of focus servo and pull-in of tracking servo | Osamu Ito, Kyosuke Yoshimoto, Yoshihiro Kiyose, Kazuhiko Nakane, Hiroyuki Onda +2 more | 1995-08-01 |
| 5359589 | Optical information recording and reproducing apparatus having functions for adjusting intensity of light beam | — | 1994-10-25 |
| 5323127 | Branching filter having specific impedance and admittance characteristics | Tomokazu Komazaki, Katsuhiko Gunji, Norio Onishi, Kouichi Ichikawa | 1994-06-21 |
| 5311107 | Method and apparatus for stopping DC motor by brake power corresponding to rotation frequency of motor and disk storage unit having such apparatus | Hiroo Shimegi, Hiroyuki Onda, Katsuya Enami, Hiroshi Takahashi | 1994-05-10 |
| 5283774 | Optical disk storage having focus servocontrol system in accordance with astigmatism method | — | 1994-02-01 |
| 5278815 | Digital data reproducing apparatus | Mitsumasa Kubo, Fumio Hishiyama, Masayoshi Shimamoto, Teruo Furukawa | 1994-01-11 |
| 5265077 | Optical disk storage having reduced power consumption during seeking operations | Kyosuke Yoshimoto, Teruo Furukawa, Minoru Ozaki, Hiroyuki Onda | 1993-11-23 |
| 5260917 | Signal reproduction apparatus | — | 1993-11-09 |
| 5247509 | Disk storage which automatically adjusts to optimum recording/reproducing level | Kazuhiko Nakane, Kyosuke Yoshimoto, Yoshihiro Kiyose, Teruo Furukawa, Hiroyuki Onda +2 more | 1993-09-21 |
| 5227747 | Dielectric filter having coupling amount adjusting patterns | Tomokazu Komazaki, Katsuhiko Gunji, Norio Onishi, Osamu Yamato, Kouichi Ichikawa | 1993-07-13 |
| 5208794 | Optical disk apparatus having a stationary optical system and a movable optical system | — | 1993-05-04 |
| 5177727 | Rotary recording medium having a guide track and recording and reproducing apparatus therefor | — | 1993-01-05 |
| 5150089 | Dielectric filter having an attenuation pole tunable to a predetermined frequency | Tomokazu Komazaki, Katsuhiko Gunji, Norio Onishi | 1992-09-22 |
| 5132957 | Information signal recording and reproducing system capable of recording an information signal on a medium having a limited recording band width | — | 1992-07-21 |
| 5126853 | Dropout detecting apparatus | Masahiko Fukushima | 1992-06-30 |
| 5124675 | LC-type dielectric filter | Tomokazu Komazaki, Katsuhiko Gunji, Norio Onishi, Ichiro Iwase | 1992-06-23 |