Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7978587 | Optical pickup apparatus and optical disc apparatus with a single beam system | Toshimasa Kamisada, Yasuo Kitada, Kazuyoshi Yamazaki, Tomoto Kawamura | 2011-07-12 |
| 7940630 | Optical pick up apparatus with a single beam system and having a diffraction grating | Toshimasa Kamisada, Yasuo Kitada, Kazuyoshi Yamazaki, Tomoto Kawamura | 2011-05-10 |
| 7885166 | Optical pick up apparatus with a single beam system and having a diffraction grating | Toshimasa Kamisada, Yasuo Kitada, Kazuyoshi Yamazaki, Tomoto Kawamura | 2011-02-08 |
| 7733760 | Optical pickup having radially arranged lenses in a low profile construction | Tomoto Kawamura, Toshimasa Kamisada, Yasuo Kitada | 2010-06-08 |
| 7567495 | Optical pickup apparatus and optical disc apparatus using same | Toshimasa Kamisada, Yasuo Kitada, Kazuyoshi Yamazaki, Tomoto Kawamura | 2009-07-28 |
| 7245574 | Optical head and its adjusting method and optical disk device using the same | Toshimasa Kamisada, Yasuo Kitada, Susumu Tachibana | 2007-07-17 |
| 5668786 | Magneto-optic disk apparatus having means for eliminating fluctuation component in reproduction magneto-optic signal | Tohru Sasaki, Takeshi Shimano, Toshimasa Kamisada, Motoyuki Suzuki, Naoki Mori +1 more | 1997-09-16 |