Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7693246 | Frequency control device and information reproduction apparatus | Tomohiro Ohama, Nobuyuki Asai | 2010-04-06 |
| 6804074 | PLL circuit and recording and playback apparatus using same | Norio Shoji, Kimimasa Senba, Toshihiro Kawakubo | 2004-10-12 |
| 6597650 | Nonlinearity compensation circuit and method, control circuit and method for nonlinearity compenstation circuit and recording and/or playback apparatus employing the same | Masayuki Katakura, Norio Shoji, Masato Sekine, Kimimasa Senba, Katsuhisa Daio | 2003-07-22 |
| 5274510 | Track address pattern for a disk memory apparatus | Masami Kashiwagi | 1993-12-28 |
| 5268803 | Disc memory apparatus utilizing detection of high-accuracy address data in short servo sectors for high speed accessing | Yoshiyuki Kunito | 1993-12-07 |
| 5191568 | Disc drive apparatus with tracking control based on multiple reference tracks and with automatic seek time adjustment | Takayasu Muto, Mamoru Osato, Masami Kashiwagi, Toru Tanaka, Hidekazu Seto | 1993-03-02 |
| 5175654 | Disk apparatus | Takehiko Saito | 1992-12-29 |
| 4543531 | Digital data detecting apparatus | Hiroaki Yada | 1985-09-24 |
| 4524401 | Magnetic transducer head utilizing magneto resistance effect with a bias field and partial saturation | Hiroyuki Uchida, Takehiro Nagaki, Shigeyoshi Imakoshi, Yutaka Soda, Tetsuo Sekiya | 1985-06-18 |
| 4516179 | Magnetic transducer head utilizing magnetoresistance effect | Shigeyoshi Imakoshi, Yutaka Soda, Hiroyuki Uchida, Hiroshi Takino, Tetsuo Sekiya +1 more | 1985-05-07 |
| 4275269 | Public address system | Yuzo Fuse | 1981-06-23 |