Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10073333 | Light irradiation device, and image display equipped with the same, for emitting light of two or more components by laser light | Takehiro Nishimori, Kazuhiro Fujita, Toshiharu Murai, Tatsuya Takahashi, Kaoru Itoh +1 more | 2018-09-11 |
| 8174952 | Light source unit, optical detector unit, optical pickup device, and optical disk device | Takeshi Miki | 2012-05-08 |
| 7577076 | Tilt sensor using diffraction grating | Tetsuya Ogata, Shigeru Oohchida, Suguru Douwaki | 2009-08-18 |
| 7164532 | Diffraction grating, light source unit applying the same therein, and optical head device employing the same | Hiroyoshi Funato, Shigeru Oohchida, Tsuyoshi Suzudo | 2007-01-16 |
| 5487058 | Optical pick-up system with improved light-convergence construction | — | 1996-01-23 |
| 5281802 | Focus error signal detection device with separating prism | — | 1994-01-25 |
| 5278817 | Optical pick-up for use with an opto-magnetic signal | Hideo Maeda, Shigeru Ohuchida | 1994-01-11 |
| 5144684 | Parallel image processing apparatus using edge detection layer | Toshio Inada, Yukio Ogura | 1992-09-01 |
| 5115423 | Optomagnetic recording/reproducing apparatus | Hideo Maeda, Shigeru Ohuchida | 1992-05-19 |
| 5101389 | Optical information recording/reproducing apparatus | Shigeru Ohuchida, Hideo Maeda | 1992-03-31 |
| 5015835 | Optical information reading and writing device with diffraction means | Shigeru Ohuchida, Toshiyuki Inokuchi | 1991-05-14 |
| 4744659 | Method of and apparatus for measuring the shape of a wavefront | — | 1988-05-17 |
| 4743117 | Device for optically measuring aspheric surface | Toshio Kanoh | 1988-05-10 |
| 4743118 | Method of detecting origin of shear and measuring amount of shear in shearing interferometer systems | Keishin Tsuchiya, Toshio Kanoh | 1988-05-10 |
| 4653923 | Focusing method for interferometer | — | 1987-03-31 |