Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11073693 | Optical device, head mounted display, assembling method for the same, holographic diffraction grating, display device, and alignment device | Katsuyuki Akutsu, Hideo Nagasaka, Yusuke Kajio, Takashi Mizusawa, Daisuke Tsukuda | 2021-07-27 |
| 8432591 | Light irradiation device for recording information in a hologram recording medium | Akio Yamakawa, Yoshiki Okamoto, Kenji Tanaka, Koji Takasaki | 2013-04-30 |
| 8416480 | Hologram reproducing apparatus, hologram reproducing method, and phase modulating element | Tomiji Tanaka, Masaaki Hara, Satoru Seko, Shinji Yamada, Hitoshi Okada | 2013-04-09 |
| 8121010 | Hologram device, tilt detection method, and tilt correction method | Akio Yamakawa, Yoshiki Okamoto, Kenji Tanaka, Koji Takasaki | 2012-02-21 |
| 7889619 | Hologram recording/reproducing apparatus and light source apparatus | — | 2011-02-15 |
| 7835049 | Reproducing apparatus and reproducing method | Masaaki Hara, Mikio Sugiki, Mitsuru Toishi, Kenji Tanaka, Kazuyuki Hirooka | 2010-11-16 |
| 7826325 | Recording and reproducing apparatus and defect determination method | — | 2010-11-02 |
| 7760611 | Hologram reproducing apparatus | Mitsuru Toishi | 2010-07-20 |