Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10724845 | Optical module for optical height measurement | Daisuke Tomita, Takahiro Kurokawa, Yoshitaka Morimoto | 2020-07-28 |
| 8537651 | Optical disc device | Tomoto Kawamura, Kotaro Oishi, Masayuki Kobayashi | 2013-09-17 |
| 7400568 | Optical device, optical pickup and optical disk apparatus | Seiichi Katou, Katsuhiko Kimura, Teruhisa Akashi, Kazuyuki Fukuda, Ryoji Okada +2 more | 2008-07-15 |
| 5963517 | Disk reproducing speed control method and a disk reproducing apparatus using the same | Harushige Nakagaki, Tokinori Furuichi, Kazuhiro Oda, Ryuichi Koike | 1999-10-05 |
| 4779255 | Optical reading/reproducing apparatus | Toshio Sugiyama | 1988-10-18 |
| 4772100 | Liquid crystal display device having circuit boards extending along segment and column electrode directions | — | 1988-09-20 |
| 4744069 | Optical disc apparatus with access system having object lens control | Toshio Sugiyama | 1988-05-10 |
| 4532619 | Method and apparatus for reducing semiconductor laser optical noise | Toshio Sugiyama | 1985-07-30 |
| 4525823 | Optical tracking system | Toshio Sugiyama, Yukio Fukui | 1985-06-25 |