Issued Patents All Time
Showing 76–100 of 152 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8310168 | Light source device and projector | — | 2012-11-13 |
| 8305864 | Compound objective lens, optical head device, optical information device, and information processing device | Yoshiaki Komma, Fumitomo Yamasaki, Michihiro Yamagata | 2012-11-06 |
| 8264936 | Diffractive optical element, objective optical system including the same, and optical pickup including the same | Yasuhiro Tanaka, Michihiro Yamagata | 2012-09-11 |
| 8233371 | Objective lens, optical head and optical disc device | Fumitomo Yamasaki, Sadao Mizuno, Hideki Aikoh | 2012-07-31 |
| 8233372 | Optical system for compensating for coma aberration and/or spherical aberration in an optical pickup device and optical pickup device having the same | Yasuhiro Tanaka, Michihiro Yamagata, Masahiro Birukawa | 2012-07-31 |
| 8184373 | Optical element and method for producing the same | Yasuhiro Tanaka, Makoto Umetani, Hiroshi Yamaguchi, Motonobu Yoshikawa | 2012-05-22 |
| 8179769 | Optical head device, optical information device, computer, disc player, car navigation system, optical disc recorder, and vehicle | Yoshiaki Komma, Fumitomo Yamasaki | 2012-05-15 |
| 8179768 | Optical system for compensating for spherical aberration and/or coma aberration in an optical pickup device and optical pickup device having the same | Yasuhiro Tanaka, Michihiro Yamagata, Masahiro Birukawa | 2012-05-15 |
| 8050168 | Optical head device, optical information device, computer, disc player, car navigation system, optical disc recorder, and vehicle | Yoshiaki Komma, Fumitomo Yamasaki | 2011-11-01 |
| 7978568 | Optical head, diffraction device, objective lens, and optical disc apparatus | Fumitomo Yamasaki, Yoshiaki Komma | 2011-07-12 |
| 7952979 | Coupling lens, optical head and optical disc device | Fumitomo Yamasaki, Sadao Mizuno, Hideki Aikoh | 2011-05-31 |
| 7924686 | Objective lens and optical pickup device | Takahiro Tomita, Michihiro Yamagata, Yoshiaki Komma | 2011-04-12 |
| 7920455 | Complex optical element and optical pickup | Jun Murata, Yasuhiro Tanaka, Michihiro Yamagata | 2011-04-05 |
| 7817525 | Objective lens and optical pickup device | Takahiro Tomita, Michihiro Yamagata, Yoshiaki Komma | 2010-10-19 |
| 7817355 | Afocal lens, optical head, optical disk apparatus and optical information equipment | Fumitomo Yamasaki, Yoshiaki Komma, Kanji Wakabayashi, Toshiyasu Tanaka | 2010-10-19 |
| 7801008 | Diffractive optical element, objective optical system including the same, and optical pickup including the same | Yasuhiro Tanaka, Michihiro Yamagata | 2010-09-21 |
| 7656769 | Optical pickup and objective optical system for use in the same | Akihiro Arai, Yasuhiro Tanaka, Michihiro Yamagata | 2010-02-02 |
| 7548383 | Optical pickup and objective lens used therein | Yasuhiro Tanaka, Michihiro Yamagata, Kazuhiko Ishimaru | 2009-06-16 |
| 7545583 | Optical lens having antireflective structure | Yasuhiro Tanaka, Michihiro Yamagata | 2009-06-09 |
| 7292321 | Contact detection sensor and contact detection method | Yoshiharu Yamamoto, Michihiro Yamagata, Hiroshi Yamaguchi | 2007-11-06 |
| 7255919 | Mold release layer transferring film and laminate film | Ken Sakata | 2007-08-14 |
| 7248420 | Optical pickup lens device and information recording and reproducing device using the same | Yasuhiro Tanaka, Michihiro Yamagata, Yoshiaki Komma | 2007-07-24 |
| 7221521 | Optical pickup lens device and information recording and reproducing device using the same | Yasuhiro Tanaka, Michihiro Yamagata, Yoshiaki Komma, Fumitomo Yamasaki | 2007-05-22 |
| 7198989 | Method of producing a COF flexible printed wiring board | Ken Sakata | 2007-04-03 |
| 7173322 | COF flexible printed wiring board and method of producing the wiring board | Ken Sakata | 2007-02-06 |