Issued Patents All Time
Showing 51–75 of 96 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8614936 | Pickup head, information recording method and reproducing method | Hideaki Okano, Takashi Usui, Chikara Tanioka, Akihito Ogawa, Kazuaki Doi | 2013-12-24 |
| 8605492 | Memory device, recording method, and recording and reproducing method | Yasushi Tomizawa, Akihito Ogawa, Yangfang Li, Akihiro Koga | 2013-12-10 |
| 8599675 | Information storage medium, recording method, and recording apparatus | Hideo Ando, Sumitaka Maruyama, Yutaka Kashihara, Akihito Ogawa | 2013-12-03 |
| 8593926 | Information storage device, information recording medium, and information storage method | Kazuto Kuroda, Takashi Usui, Hideaki Okano | 2013-11-26 |
| 8582414 | Information storage medium, recording method, and recording apparatus | Hideo Ando, Sumitaka Maruyama, Yutaka Kashihara, Akihito Ogawa | 2013-11-12 |
| 8582399 | Information storage medium, recording method, and recording apparatus | Hideo Ando, Sumitaka Maruyama, Yutaka Kashihara, Akihito Ogawa | 2013-11-12 |
| 8582413 | Optical pickup and optical disk apparatus | Chikara Tanioka, Hideaki Okano, Akihito Ogawa, Takashi Usui, Kazuaki Doi | 2013-11-12 |
| 8553508 | Focus servo control device, and information recording/reproducing device using the same | Takashi Usui, Hideaki Okano, Chikara Tanioka, Akihito Ogawa, Kazuaki Doi | 2013-10-08 |
| 8547816 | Information storage medium, recording method, and recording apparatus | Hideo Ando, Sumitaka Maruyama, Yutaka Kashihara, Akihito Ogawa | 2013-10-01 |
| 8542566 | Holographic recording method detecting displacement of a holographic recording medium, and recording and reproduction apparatus | Takashi Usui, Hideaki Okano | 2013-09-24 |
| 8514410 | Displacement detection device and method | Takashi Usui, Hideaki Okano, Akihito Ogawa, Yasuhito Ueda, Shinichi Tatsuta +1 more | 2013-08-20 |
| 8391113 | Optical disc for tuple-speed recording and optical disc device for tuple-speed recording | Morio Nakatani, Masato Fuma, Yutaka Kashihara, Akihito Ogawa, Yutaka Yamanaka +2 more | 2013-03-05 |
| 8077586 | Optical recording head device, optical recording apparatus, and recording method | Takashi Usui, Keiichiro Yusu, Chosaku Noda, Kazuto Kuroda, Nobuaki Kaji +1 more | 2011-12-13 |
| 7949071 | Signal processing system and information storage medium | Yuji Nagai, Chosaku Noda, Akihito Ogawa, Kazuto Kuroda, Nobuhisa Yoshida +7 more | 2011-05-24 |
| 7924691 | Information storage medium, recording method, and recording apparatus | Hideo Ando, Sumitaka Maruyama, Yutaka Kashihara, Akihito Ogawa | 2011-04-12 |
| 7835256 | Two-layer optical disk and recording/reproducing optical disk apparatus of the two-layer optical disk | Yutaka Yamanaka, Shuichi Ohkubo, Yutaka Kashihara, Akihito Ogawa | 2010-11-16 |
| 7688874 | Semiconductor laser driving device, optical head, optical disk device, and semiconductor laser driving method | Nobuaki Kaji | 2010-03-30 |
| 7668064 | Optical pickup unit and information recording/reproduction apparatus | Nobuaki Kaji, Sumitaka Maruyama, Akihito Ogawa | 2010-02-23 |
| 7426167 | Information storage medium, recording method, reproducing method, and reproducing apparatus | Hideo Ando, Sumitaka Maruyama, Yutaka Kashihara, Akihito Ogawa | 2008-09-16 |
| 7411888 | Information storage medium, recording method, reproducing method, and reproducing apparatus | Hideo Ando, Sumitaka Maruyama, Yutaka Kashihara, Akihito Ogawa | 2008-08-12 |
| 7408868 | Information storage medium, information recording method, and information recording/reproduction apparatus | Hideo Ando | 2008-08-05 |
| 7382710 | Information storage medium, information recording method, and information recording/reproduction apparatus | Hideo Ando | 2008-06-03 |
| 7379409 | Information storage medium, information recording method, and information recording/reproduction apparatus | Hideo Ando | 2008-05-27 |
| 7352683 | Information storage medium, recording method, reproducing method, and reproducing apparatus | Hideo Ando, Sumitaka Maruyama, Yutaka Kashihara, Akihito Ogawa | 2008-04-01 |
| 7345984 | Information storage medium, recording method, reproducing method, and reproducing apparatus | Hideo Ando, Sumitaka Maruyama, Yutaka Kashihara, Akihito Ogawa | 2008-03-18 |