Issued Patents All Time
Showing 76–93 of 93 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7593304 | Apparatus and method for recording and reproducing hologram, and spatial light modulator therefor | Kazuki Matsumoto, Akiko Hirao, Rumiko Hayase | 2009-09-22 |
| 7498103 | Holographic recording medium and method of manufacturing the same | Katsutaro Ichihara, Akiko Hirao, Kazuki Matsumoto, Rumiko Hayase | 2009-03-03 |
| 7494747 | Holographic recording medium | Katsutaro Ichihara, Akiko Hirao, Kazuki Matsumoto, Rumiko Hayase | 2009-02-24 |
| 7357969 | Phase-change optical recording medium | Katsutaro Ichihara, Sumio Ashida, Keiichiro Yusu, Noritake Oomachi, Naomasa Nakamura +1 more | 2008-04-15 |
| 7335459 | Phase-change optical recording medium | Sumio Ashida, Keiichiro Yusu, Katsutaro Ichihara, Noritake Ohmachi, Naomasa Nakamura +1 more | 2008-02-26 |
| 7297449 | Optical recording medium and optical recording apparatus | Akiko Hirao, Kazuki Matsumoto, Hideyuki Nishizawa | 2007-11-20 |
| 7294382 | Phase-change optical recording medium | Tsukasa Nakai, Sumio Ashida, Keiichiro Yusu, Noritake Oomachi, Naomasa Nakamura +1 more | 2007-11-13 |
| 7291375 | Phase-change optical recording medium | Katsutaro Ichihara, Sumio Ashida, Keiichiro Yusu, Noritake Oomachi, Naomasa Nakamura +1 more | 2007-11-06 |
| 7245576 | Optical recording medium and optical recording-reproducing method | Katsutaro Ichihara, Sumio Ashida, Keiichiro Yusu, Kenji Todori | 2007-07-17 |
| 7214416 | Phase-change optical recording medium | Tsukasa Nakai, Sumio Ashida, Keiichiro Yusu, Noritake Oomachi, Naomasa Nakamura +2 more | 2007-05-08 |
| 7132147 | Phase-change optical recording medium | Tsukasa Nakai, Sumio Ashida, Keiichiro Yusu, Noritake Oomachi, Naomasa Nakamura +1 more | 2006-11-07 |
| 7060393 | Optical recording medium and optical recording apparatus | Akiko Hirao, Kazuki Matsumoto, Hideyuki Nishizawa | 2006-06-13 |
| 7061852 | Recording apparatus for a holographic recording medium including an alignment laser having a different wavelength from the recording laser | Kazuki Matsumoto, Hideyuki Nishizawa, Akiko Hirao | 2006-06-13 |
| 7006425 | Information recording and/or reproducing method and apparatus for three dimensional optical recording medium | Akiko Hirao, Hideyuki Nishizawa, Yoshinori Honguh, Kazuki Matsumoto | 2006-02-28 |
| 6921624 | Optical recording medium | Akiko Hirao, Kazuki Matsumoto, Hideyuki Nishizawa | 2005-07-26 |
| 6577591 | Optical recording medium | Akiko Hirao, Hideyuki Nishizawa, Kazuki Matsumoto | 2003-06-10 |
| 6545971 | Information recording/reproducing system for recording/reproducing information in three-dimensional recording medium of a light passing-through type | Hideyuki Nishizawa, Akiko Hirao | 2003-04-08 |
| 6353309 | Switching circuit having a switching semiconductor device and control method thereof | Mitsuaki Ootani, Yoshiyuki Wasada, Nobuyuki Yamazaki, Yasushi Inoue, Takeshi Nakayama +2 more | 2002-03-05 |