Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7336367 | Light-receiving/emitting composite unit, method for manufacturing the same, and displacement detection device | Hideaki Tamiya, Kayoko Taniguchi, Akihiro Kuroda | 2008-02-26 |
| 7187449 | Light-receiving/emitting composite unit, method for manufacturing the same, and displacement detection device | Hideaki Tamiya, Kayoko Taniguchi, Akihiro Kuroda | 2007-03-06 |
| 6980303 | Light-emitting/receiving combined unit and displacement sensors using the same | Akihito Nakayama, Kayoko Taniguchi, Akihiro Kuroda | 2005-12-27 |
| 6114621 | Photomultiplier with magnetic shielding case | Masumi Tachino, Suenori Kimura, Takashi Goto | 2000-09-05 |
| 5965982 | Side-on type photomultiplier | Masumi Tachino, Suenori Kimura, Takashi Goto | 1999-10-12 |
| 5864207 | Photomultiplier with lens element | Suenori Kimura | 1999-01-26 |
| 5847380 | Side-on type photomultiplier comprising an envelope having an opening, a lens element, and a lens positioning structure | Masumi Tachino, Suenori Kimura, Takashi Goto | 1998-12-08 |
| 5727111 | Optical pick-up and light detecting cover therefor | Kimihiro Saito, Shuzo Sato, Takeshi Kubo | 1998-03-10 |
| 5541899 | Optical pickup device with movable objective lens and stationary focusing and tracking coils | Koji Mitsumori, Tomoyuki Ishida | 1996-07-30 |
| 5521394 | Compact displacement detecting system with optical integrated circuit and connector in-line with optical axis | Noriko Nakanishi | 1996-05-28 |
| 5181193 | Optical pickup device for a recording and/or reproducing apparatus | Etsufumi Yamamoto, Yoshiyuki Matsumoto | 1993-01-19 |
| 5181195 | Tracking error signal generator with DC offset cancellation | Etsufumi Yamamoto | 1993-01-19 |
| 5144614 | Optical pickup device | Etsufumi Yamamoto, Kenji Nagashima | 1992-09-01 |
| 5060217 | Optical head devices for use in recording and/or reproduction of information | — | 1991-10-22 |
| 5005162 | Optical head devices for use in disc players | Koji Mitsumori | 1991-04-02 |
| 4897828 | Optical pickup device | You Yoshitoshi, Yoshiyuki Matsumoto, Koji Mitsumori, Etsufumi Yamamoto, Hiroshi Oinoue | 1990-01-30 |
| 4893296 | Optical pickup device | Yoshiyuki Matsumoto, Koji Mitsumori, You Yoshitoshi, Etsufumi Yamamoto, Hiroshi Oinoue | 1990-01-09 |
| 4873429 | Optical pick-up head without pick-up of stray light | Yoshiyuki Matsumoto, You Yoshitoshi | 1989-10-10 |
| 4823331 | Focusing detection apparatus | You Yoshitoshi, Yoshiyuki Matsumoto | 1989-04-18 |