Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10816663 | Distance measuring device and distance measuring method | Yutaka Ota, Masatoshi Hirono, Nobu Matsumoto, Hiroshi Kubota, Shinichi Ohtsuka | 2020-10-27 |
| 8773669 | Optical device | Hiroshi Kubota, Nobu Matsumoto, Keiichiro Mori, Hisao Kawasato | 2014-07-08 |
| 7072268 | Optical pickup apparatus, optical disk apparatus, and tracking error signal detection method | — | 2006-07-04 |
| 6975576 | Optical head device and disk drive system having first and second light sources for emitting light beams of different wavelengths | — | 2005-12-13 |
| 6163409 | Optical head, optical component for use therein, method of manufacturing the same, and optical disk apparatus | Isao Hoshino, Kazushige Mori, Yoshiharu Imaoka | 2000-12-19 |
| 5715231 | Objective lens driving apparatus and optical head driving apparatus | Makoto Nagasato, Takahiro Kokubo | 1998-02-03 |
| 5615057 | Image record/playback apparatus including a photographing device and a connectable playback device | Motoji Fukuta, Masanori Ozawa, Yoshihiko Naruoka, Ken-ichi Itoh | 1997-03-25 |