Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12085732 | Combined collimation and diffuser lens for flood illuminator | Michael Brickner, Hui Son, Chandra Kakani, Erin Eppard | 2024-09-10 |
| 11590561 | Method of producing sand mold comprising curing a resin and a binder by the same curing agent | Takanobu KAWAKAMI, Katsushi MORITA, Kazuki TAKADA | 2023-02-28 |
| 11338394 | Laser processing apparatus, laser processing method and thin plate processed using the same | Naohiko Soma, Mitsuyuki Kaneko | 2022-05-24 |
| 10139250 | Optical encoder based on light-steering based contrast generation from a first plurality of primary convex mirror sections and a second plurality of secondary mirror sections | Serhan O. Isikman, Anant Rai, Prashanth S. Holenarsipur, Richard Ruh, Takahiro Atsuta +1 more | 2018-11-27 |
| 8432591 | Light irradiation device for recording information in a hologram recording medium | Yoshiki Okamoto, Kenji Tanaka, Kazutatsu Tokuyama, Koji Takasaki | 2013-04-30 |
| 8121010 | Hologram device, tilt detection method, and tilt correction method | Yoshiki Okamoto, Kenji Tanaka, Kazutatsu Tokuyama, Koji Takasaki | 2012-02-21 |
| 7995445 | Optical pickup apparatus, reproduction apparatus, and reproduction method | Kenji Tanaka | 2011-08-09 |
| RE38538 | Apparatus and method for recording and reproducing information from a plurality of recording medium having different thicknesses and recording densities | Kamon Uemura | 2004-06-22 |
| 6570828 | Optical pickup device having a movable-side member driven with a predetermined inclination | Nobuyasu Kikuchi, Yusaku Seki, Tetsuo Maeda, Yutaka Sugawara | 2003-05-27 |
| 6366543 | Optical pickup for discriminating between and reading different types of optical discs | Kamon Uemura, Kiyoshi Ohsato, Masamichi Utsumi | 2002-04-02 |
| 6222803 | Optical pickup for discriminating between and reading different types of optical discs | Kamon Uemura, Kiyoshi Ohsato, Masamichi Utsumi | 2001-04-24 |
| 6104688 | Objective lens, reproducing apparatus and reproducing method | Nobuyasu Kikuchi | 2000-08-15 |
| 5963535 | Disk reproducing apparatus | Takehiko Saito, Yoshinori Matsumoto | 1999-10-05 |
| 5875164 | Apparatus and method for recording and reproducing information from a plurality of recording medium having different thickness and recording densities | Kamon Uemura | 1999-02-23 |
| 5751679 | Hologram formed on an objective lens for one defracting light beams which are separated by more than one track width | Masamichi Utsumi | 1998-05-12 |
| 5742575 | Method and device for identifying disc | Masamichi Utsumi | 1998-04-21 |
| 5737294 | Objective lens with two numerical apertures for reading/writing two optical discs | Kamon Uemura | 1998-04-07 |
| 5682372 | Method and apparatus for playing back multilayer disk | Tetsuo Usui, Masamichi Utsumi | 1997-10-28 |
| 5506830 | Disk player | Seiichiroh Ohishi, Takashi Seki, Tetsuhiro Shiomi | 1996-04-09 |
| 4896309 | Optical disc player with phase shift dependent on disk rotation direction | Noriyuki Yamashita, Masaaki Arai | 1990-01-23 |
| 4780865 | Optical information reproducing apparatus with tilt correction including projection and detection of a same diffusely illuminated field | — | 1988-10-25 |
| 4779256 | Apparatus for detecting deviations from a mutually perpendicular condition between a disc and a light beam | Shigeaki Koike | 1988-10-18 |
| 4412320 | Releasable cover locking device | — | 1983-10-25 |