Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8018646 | Wavelength conversion element, laser light source, two-dimensional image display and laser processing system | Hiroyuki Furuya, Akihiro Morikawa, Kiminori Mizuuchi, Kazuhisa Yamamoto | 2011-09-13 |
| 8010975 | Disc cartridge and photon mode optical information recording/reproducing apparatus | Tomoya Sugita, Kenichi Kasazumi, Tetsuro Mizushima, Kazuhisa Yamamoto, Teruyuki Takizawa | 2011-08-30 |
| 8009706 | Fiber laser light source | Hiroyuki Furuya, Kazuhisa Yamamoto, Masahiro Kashiwagi, Kensuke Shima | 2011-08-30 |
| 7948579 | Planar lighting device and liquid crystal display device using the same | Tatsuo Itoh, Tetsuro Mizushima, Kenichi Kasazumi, Kazuhisa Yamamoto | 2011-05-24 |
| 7922373 | Image display apparatus including a controller that controls a light amount regulating film based on an amount of extraneous light received by a light receiving element | Kazuhisa Yamamoto, Tetsuro Mizushima | 2011-04-12 |
| 7859972 | Holographic optical information recording/reproducing device and holographic optical information recording/reproducing method | Kenichi Kasazumi, Tomoya Sugita, Tetsuro Mizushima, Kazuhisa Yamamoto | 2010-12-28 |
| 7859610 | Planar lighting and LCD device with a laser light source emitting a linearly-polarized laser beam, optical member to parallelize the beam and a plate-shaped light guide for emitting part of the beam | Tetsuro Mizushima, Kenichi Kasazumi, Tatsuo Itoh, Kazuhisa Yamamoto | 2010-12-28 |
| 7852731 | Optical storage medium and optical information apparatus | Kenichi Kasazumi, Kazuhisa Yamamoto, Tetsuro Mizushima, Tomoya Sugita | 2010-12-14 |
| 7848010 | Optical apparatus, and wavelength conversion laser light source, image display apparatus, and laser light source device adopting such optical apparatus | Hiroyuki Furuya, Kazuhisa Yamamoto, Akifumi Aono, Masahide Yamauchi | 2010-12-07 |
| 7796324 | Wavelength converting apparatus and image displaying apparatus | Hiroyuki Furuya, Tetsuro Mizushima, Kazuhisa Yamamoto, Koichi Kusukame | 2010-09-14 |
| 7792160 | Coherent light source and recording and reproduction device using the same | Kazuhisa Yamamoto, Kenichi Kasazumi, Tomoya Sugita, Tetsuro Mizushima | 2010-09-07 |
| 7778135 | Optical recording medium, method for recording/reproducing information to/from optical recording medium and apparatus for recording/reproducing information | Joji Anzai, Osamu Kajino, Masanari Mohri | 2010-08-17 |
| 7740392 | Surface illumination apparatus and liquid crystal display | Tatsuo Itoh, Takayuki Nagata, Shinichi Shikii, Tetsuro Mizushima, Kazuhisa Yamamoto | 2010-06-22 |
| 7680171 | Semiconductor laser device, and image display device | Kazuhisa Yamamoto, Kiminori Mizuuchi | 2010-03-16 |
| 7630426 | Wavelength detector, wavelength stabilization laser device, and image display device | Kenji Nakayama | 2009-12-08 |
| 5815485 | Recording medium, a method for producing the same, a control method using the recording medium, and a recording/reproducing apparatus using the recording medium | Shinichi Tanaka, Hiromichi Ishibashi, Mitsurou Moriya | 1998-09-29 |
| 5293367 | Optical pickup head wherein an error signal is produced by detecting a phase difference in diffraction beams from a holographic optical element | Yoshiaki Komma, Naoyasu Miyagawa | 1994-03-08 |
| 5293038 | Optical pick-up head apparatus wherein hollographic optical element and photodetector are formed on semiconductor substrate | Yoshiaki Komma, Seiji Nishino | 1994-03-08 |
| 5283771 | Optical pickup head | Yoshiaki Komma, Seiji Nishino | 1994-02-01 |
| 5144606 | Focusing-error detecting apparatus with a simple photodetector unit for use in an optical recording/reproducing device | — | 1992-09-01 |
| 5111448 | Optical pickup head having a hologram-associated objective lens and optical information processing apparatus using the same | Yoshiaki Komma, Makoto Kato, Tetsuo Saimi | 1992-05-05 |