Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8243564 | Misjudgment correction circuit and optical disk drive | Shinya Nouchi, Kenichi Ishida | 2012-08-14 |
| 8054719 | Comparator and optical-disc recording/reproduction apparatus | — | 2011-11-08 |
| 7933173 | Wobble signal extraction circuit and optical disk device | — | 2011-04-26 |
| 6804074 | PLL circuit and recording and playback apparatus using same | Norio Shoji, Junkichi Sugita, Toshihiro Kawakubo | 2004-10-12 |
| 6693863 | Asymmetry correcting circuit and information reproducing apparatus using the same | Norio Shoji, Yuji Gendai, Nobuyoshi Kobayashi | 2004-02-17 |
| 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, Junkichi Sugita, Norio Shoji, Masato Sekine, Katsuhisa Daio | 2003-07-22 |
| 6496076 | PLL circuit and recorded data reproduction apparatus | Norio Shoji | 2002-12-17 |