Issued Patents All Time
Showing 51–75 of 95 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7106681 | Optical head arrangements with single substrate lasers | Shigeru Nakamura, Kazuo Shigematsu | 2006-09-12 |
| 7068572 | Optical head and optical disk apparatus | Tetsuo Ariyoshi, Mariko Umeda | 2006-06-27 |
| 7012875 | Optical disk apparatus using focal shift signals to control spherical aberration | Takeshi Maeda, Hirofumi Sukeda | 2006-03-14 |
| 6965552 | Mounting method for optical device and optical head equipment | Masahide Tokuda, Kimio Tatsuno, Hirohisa Sano, Shigeharu Kimura | 2005-11-15 |
| 6934228 | Optical head | Shigeru Nakamura, Kunikazu Ohnishi, Masayuki Inoue, Yukio Fukui | 2005-08-23 |
| 6922386 | Optical disk apparatus | Toshimichi Shintani, Harukazu Miyamoto, Takeshi Maeda, Takahiro Kurokawa | 2005-07-26 |
| 6898024 | Optical system for optical pickup employing coma compensating element | Shuichi Takeuchi, Koichi Maruyama | 2005-05-24 |
| 6807133 | Optical head and optical disk apparatus | Tetsuo Ariyoshi, Mariko Umeda | 2004-10-19 |
| 6791934 | Objective lens optical system, optical head and optical information reproduction apparatus | Tetsuo Ariyoshi, Kazuo Shigematsu, Koichi Maruyama, Shuichi Takeuchi | 2004-09-14 |
| 6785203 | Optical lens for optical disc drive with aberration suppression for recording/reproducing for a plurality of optical disc types | Koichi Maruyama, Shigeru Nakamura, Akira Arimoto, Kazuo Shigematsu | 2004-08-31 |
| 6782018 | Diode laser module and application equipment | Kimio Tatsuno, Masahide Tokuda, Shigeharu Kimura, Hirohisa Sano | 2004-08-24 |
| 6768556 | Near-field optical probe, near-field optical microscope and optical recording/reproducing device with near-field optical probe | Takuya Matsumoto, Sumio Hosaka, Fumio Isshiki | 2004-07-27 |
| 6728173 | Information reproducing method which reproduces plural components of a focus error signal and a tracking error signal from plural detection regions of plural reflected light beams | Shigeru Nakamura, Kunikazu Ohnishi, Masayuki Inoue, Yukio Fukui | 2004-04-27 |
| 6721242 | Optical detector having three light receiving areas | Kunikazu Ohnishi, Shigeru Nakamura, Masayuki Inoue, Yukio Fukui, Yasuyuki Sugi +2 more | 2004-04-13 |
| 6717906 | Optical disk apparatus to perform either reproduction or reproduction/recording of each of at least two kinds of optical disks having different substrate thicknesses | — | 2004-04-06 |
| 6639925 | Optical information processing equipment and semiconductor light emitting device suitable therefor | Atsuko Niwa, Tsukuru Ohtoshi, Takao Kuroda, Makoto Okai | 2003-10-28 |
| 6611487 | Flying type optical head integrally formed with light source and photodetector and optical disk apparatus with the same | Kenchi Ito, Yooji Maruyama, Hiroyuki Awano | 2003-08-26 |
| 6573578 | Photo semiconductor integrated circuit device and optical recording reproducing apparatus | Shigeharu Kimura, Kenji Maio, Takeshi Doi, Yoichi Tamaki | 2003-06-03 |
| 6563099 | Optical information recording/reproducing apparatus, and optical head apparatus | Shigeharu Kimura, Tetsuo Ariyoshi | 2003-05-13 |
| 6542526 | Optical information processor and semiconductor light emitting device suitable for the same | Atsuko Niwa, Tsukuru Ohtoshi, Takao Kuroda, Makoto Okai | 2003-04-01 |
| 6524766 | Optical disk medium | Tetsuo Ariyoshi, Motoyasu Terao, Toshimichi Shintani | 2003-02-25 |
| 6507009 | Optical detector, signal processing circuit and optical information reproduction apparatus thereof | Kunikazu Ohnishi, Shigeru Nakamura, Masayuki Inoue, Yukio Fukui, Yasuyuki Sugi +2 more | 2003-01-14 |
| 6493307 | OPTICAL HEAD HAVING TWO SEMICONDUCTOR LASERS OF DIFFERENT WAVELENGTH, AN OBJECTIVE LENS FOCUSING LASER BEAMS ON DIFFERENT THICKNESS SUBSTRATES, AND AN ANNULAR PHASE SHIFTER DECREASING FOCUSED LASER BEAM SPOT ABERRATION | Akira Arimoto | 2002-12-10 |
| 6477129 | Optical disc drive | Koichi Maruyama, Shigeru Nakamura, Akira Arimoto, Kazuo Shigematsu | 2002-11-05 |
| 6430140 | OPTICAL HEAD HAVING TWO SEMICONDUCTOR LASERS OF DIFFERENT WAVELENGTH, AN OBJECTIVE LENS FOCUSING LASER BEAMS ON DIFFERENT THICKNESS SUBSTRATES, AND AN ANNULAR PHASE SHIFTER DECREASING FOCUSED LASER BEAM SPOT ABERRATION | Akira Arimoto | 2002-08-06 |