Issued Patents All Time
Showing 101–122 of 122 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6870805 | Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing method | Norikazu Arai, Toshiyuki Kojima, Toshihiko Kiriki, Kohei Ota | 2005-03-22 |
| 6856471 | Objective optical element, optical pick-up apparatus, and optical information recording reproducing apparatus | Hidekazu Totsuka, Katsuya Sakamoto, Kiyono Ikenaka | 2005-02-15 |
| 6853820 | Method for regenerating charging member, charging member and device for regenerating charging member | Toshiaki Murofushi, Kazunari Koga | 2005-02-08 |
| 6826379 | Washing method for charging member | Kazunari Koga, Toshiaki Murofushi, Akihiko Suzuki, Akihito Suzuki | 2004-11-30 |
| 6781943 | Objective lens and optical pick-up device for reproducing and/or recording of information | — | 2004-08-24 |
| 6765732 | Optical pickup lens, molded optical component, handling method, and mold for optical component | Shogo Yamamoto, Hiroyuki Hattori, Etsuzo Kurihara, Takashi Matsumaru, Taichiro Saito +3 more | 2004-07-20 |
| 6636365 | Optical pickup apparatus and objective lens | Katsuya Sakamoto | 2003-10-21 |
| 6597519 | Objective lens, optical pick-up apparatus and optical information recording reproducing apparatus | — | 2003-07-22 |
| 6515808 | Optical pickup apparatus and objective lens | — | 2003-02-04 |
| 6400403 | Solid-state imaging device having improved resolution without generating a pseudo signal | — | 2002-06-04 |
| 6400672 | Method for recording/reproducing optical information recording medium, optical pickup apparatus, objective lens and design method of objective lens | Norikazu Arai, Hiroyuki Yamazaki | 2002-06-04 |
| 6313956 | Optical pickup apparatus and objective lens | — | 2001-11-06 |
| 6243349 | Method for recording/reproducing optical information recording medium, optical pickup apparatus, objective lens and design method of objective lens | Norikazu Arai, Hiroyuki Yamazaki | 2001-06-05 |
| 6192021 | Optical pickup apparatus | Norikazu Arai, Hiroyuki Yamazaki | 2001-02-20 |
| 6130420 | Solid state image sensing apparatus, camera using the apparatus, and method for driving the apparatus | Akihisa Tanaka | 2000-10-10 |
| 6118749 | Method for recording/reproducing optical information recording medium, optical pickup apparatus, objective lens and design method of objective lens | Norikazu Arai, Hiroyuki Yamazaki | 2000-09-12 |
| 6061324 | Method for recording/reproducing optical information recording medium, optical pickup apparatus, objective lens and design method of objective lens | Norikazu Arai, Hiroyuki Yamazaki | 2000-05-09 |
| 6052355 | Optical pickup apparatus and a compensation element therefor | Norikazu Arai | 2000-04-18 |
| 5890791 | Light control sheet, surface light source unit and liquid crystal display device | — | 1999-04-06 |
| 5779337 | Plane light source unit and light guide used therein | Norio Nakamura, Yasuo Shono, Yoshinori Higuchi, Atsunori Ohyama | 1998-07-14 |
| 5488502 | Light beam scanning device and image formation lens | — | 1996-01-30 |
| 4840844 | Magnetic recording medium | Masaaki Futamoto, Yukio Honda, Takashi Nishimura, Kazuetsu Yoshida, Toyoji Okuwaki +6 more | 1989-06-20 |