Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11531102 | Distance measurement image pickup apparatus | Kozo Masuda, Hisataka Sugiyama, Toshimichi Shintani | 2022-12-20 |
| 10838063 | Distance measurement apparatus and angle adjustment method of the same | Naoya Matsuura, Katsuhiko Izumi | 2020-11-17 |
| 10614584 | Three-dimensional distance measurement apparatus | Katsuhiko Izumi, Naoya Matsuura | 2020-04-07 |
| 8169880 | Optical pickup having radially arranged lenses in a low profile construction | Tomoto Kawamura, Yoshiro Konishi, Yasuo Kitada | 2012-05-01 |
| 8154962 | Optical pickup and optical information recording and reproducing device | Hiromitsu Mori, Tomoto Kawamura, Yoshiro Konishi, Yasuo Kitada | 2012-04-10 |
| 8014258 | Optical pickup having radially arranged lenses in a low profile construction | Tomoto Kawamura, Yoshiro Konishi, Yasuo Kitada | 2011-09-06 |
| 7978587 | Optical pickup apparatus and optical disc apparatus with a single beam system | Yasuo Kitada, Kazuyoshi Yamazaki, Tomoto Kawamura, Yoshiro Konishi | 2011-07-12 |
| 7940630 | Optical pick up apparatus with a single beam system and having a diffraction grating | Yasuo Kitada, Kazuyoshi Yamazaki, Tomoto Kawamura, Yoshiro Konishi | 2011-05-10 |
| 7885166 | Optical pick up apparatus with a single beam system and having a diffraction grating | Yasuo Kitada, Kazuyoshi Yamazaki, Tomoto Kawamura, Yoshiro Konishi | 2011-02-08 |
| 7733760 | Optical pickup having radially arranged lenses in a low profile construction | Tomoto Kawamura, Yoshiro Konishi, Yasuo Kitada | 2010-06-08 |
| 7567495 | Optical pickup apparatus and optical disc apparatus using same | Yasuo Kitada, Kazuyoshi Yamazaki, Tomoto Kawamura, Yoshiro Konishi | 2009-07-28 |
| 7542396 | Information recording apparatus, information recording medium and information recording medium | Motoyasu Terao, Shinichi Nakatsuka, Takeshi Shimano, Hitoshi Ishii, Kazuhiro Soga +1 more | 2009-06-02 |
| 7379397 | Optical pickup and optical disc apparatus provided with the same | Hiromitsu Mori, Kyuichiro Nagai, Atsushi Inoue, Ryuichiro Mizuno | 2008-05-27 |
| 7245574 | Optical head and its adjusting method and optical disk device using the same | Yasuo Kitada, Yoshiro Konishi, Susumu Tachibana | 2007-07-17 |
| 7076791 | Optical pickup and optical disc apparatus provided with the same | Hiromitsu Mori, Kyuichiro Nagai, Atsushi Inoue, Ryuichiro Mizuno | 2006-07-11 |
| 6985424 | Laser module and optical head | Shigeru Nakamura, Kazuo Shigematsu | 2006-01-10 |
| 5668786 | Magneto-optic disk apparatus having means for eliminating fluctuation component in reproduction magneto-optic signal | Tohru Sasaki, Takeshi Shimano, Yoshiro Konishi, Motoyuki Suzuki, Naoki Mori +1 more | 1997-09-16 |
| 5555539 | Multi-beam split-type optical head for use in optical disk apparatus | Yasuo Kitada | 1996-09-10 |
| 5060213 | Separation type optical head | — | 1991-10-22 |
| 4841509 | Apparatus and method for detecting focus error signal and tracking error signal in an optical disk system | Akira Saito | 1989-06-20 |
| 4742218 | Focus error detection apparatus utilizing focusing an front and rear sides of focal planes | Shigeru Nakamura, Akira Saito, Takeshi Maeda, Yoshito Tsunoda, Toshimitsu Kaku +3 more | 1988-05-03 |