Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7804757 | Hologram recording and reproducing apparatus | Akiyoshi Uchida | 2010-09-28 |
| 7760408 | Hologram recording device and hologram recording method | Kouichi Tezuka, Hiroyasu Yoshikawa, Yasumasa Iwamura, Yuzuru Yamakage | 2010-07-20 |
| 7755819 | Hologram recording device | Kouichi Tezuka, Hiroyasu Yoshikawa, Yasumasa Iwamura, Yuzuru Yamakage | 2010-07-13 |
| 7751105 | Hologram recording apparatus and hologram recording/reproducing method | Koichi Tezuka, Hiroyasu Yoshikawa, Yasumasa Iwamura, Yuzuru Yamakage, Satoshi Shimokawa | 2010-07-06 |
| 7719735 | Hologram recorder | Kouichi Tezuka, Hiroyasu Yoshikawa, Yasumasa Iwamura, Yuzuru Yamakage | 2010-05-18 |
| 7719734 | Hologram recording device | Koichi Tezuka, Hiroyasu Yoshikawa | 2010-05-18 |
| 7715073 | Hologram recorder | Hiroyasu Yoshikawa, Koichi Tezuka, Yasumasa Iwamura, Yuzuru Yamakage | 2010-05-11 |
| 7715074 | Holographic recording device | Hiroyasu Yoshikawa, Kouichi Tezuka, Yasumasa Iwamura, Yuzuru Yamakage | 2010-05-11 |
| 7639586 | Hologram recording medium and hologram record-reproduction device | Kouichi Tezuka, Hiroyasu Yoshikawa | 2009-12-29 |
| 7636185 | Hologram recording device and hologram recording method | Kouichi Tezuka, Hiroyasu Yoshikawa, Yasumasa Iwamura, Yuzuru Yamakage | 2009-12-22 |
| 7616362 | Hologram recording and reproducing apparatus | Hiroyasu Yoshikawa, Kouichi Tezuka | 2009-11-10 |
| 7564768 | Recording and reproducing apparatus | Akihiro Itakura, Akiyoshi Uchida | 2009-07-21 |
| 7518974 | Recording and reproducing apparatus | Yuzuru Yamakage, Toshikazu Kanaoka, Akiyoshi Uchida, Hiroyasu Yoshikawa | 2009-04-14 |
| 7515521 | Hologram recording and reproducing apparatus | Kouichi Tezuka, Hiroyasu Yoshikawa | 2009-04-07 |
| 7342697 | Hologram recording medium | Kouichi Tezuka, Hiroyasu Yoshikawa | 2008-03-11 |
| 7102825 | Collimator optical system and optical information storage device | Shingo Hamaguchi | 2006-09-05 |
| 7002758 | Collimator optical system and optical information storage device | Shingo Hamaguchi | 2006-02-21 |
| 6757221 | Optical head having object lens and patterned coil | Shingo Hamaguchi, Kyoko Tadaki, Kiyoto Matsui, Goro Kawasaki, Nobuyuki Kanto | 2004-06-29 |
| 6618330 | Magneto-optical head and method of making coil for the same | Goro Kawasaki, Tsuyoshi Matsumoto | 2003-09-09 |
| 6552858 | Objective lens system and optical disk apparatus using the same | Tsuyoshi Matsumoto | 2003-04-22 |
| 6339564 | Optical information recording/reproducing apparatus | Koichi Tezuka, Kyoko Miyabe, Satoshi Itami, Tohru Fujimaki | 2002-01-15 |
| 6272079 | Optical head unit for optical disk apparatus having both focus control and track control function | Nobuyuki Kanto, Koichi Tezuka, Haruhiko Izumi, Satoshi Shimokawa, Shingo Hamaguchi +3 more | 2001-08-07 |
| 6185166 | Optical information recording/reproducing apparatus | Koichi Tezuka, Kyoko Miyabe, Satoshi Itami, Tohru Fujimaki | 2001-02-06 |