Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8638646 | Optical information processing method and optical information processing apparatus | Yusuke Kanatake, Tomo Kishigami, Nobuo Takeshita | 2014-01-28 |
| 8547806 | Optical disc apparatus and recording method | Tomo Kishigami | 2013-10-01 |
| 8385170 | Optical disc discrimination method, optical disc transport device, optical disc device, optical disc inspection device, and optical pickup inspection device | Hironori Nakahara, Toshiya Matozaki, Nobuo Takeshita | 2013-02-26 |
| 8358568 | Optical disc reproduction power setting method, optical disc reproduction method, and optical disc device | Tomo Kishigami, Koichi Ikuta, Nobuo Takeshita, Yusuke Kanatake | 2013-01-22 |
| 8315137 | Optical recording method and optical recording device | Tomo Kishigami, Osamu Tsukahara | 2012-11-20 |
| 8259557 | Recording and reproduction control of optical disc, optical disc driving apparatus, optical disc driving method, data processing apparatus, and optical disc recording/reproducing apparatus using version of specification information included in the optical disc | Noboru Yashima, Naoki Kizu, Mitsuru Ishizuka, Satoshi Michihata, Osamu Tsukahara +1 more | 2012-09-04 |
| 7903518 | Optical recording method and optical recording device | Tomo Kishigami, Osamu Tsukahara | 2011-03-08 |
| 7864646 | Optical recording medium, optical recording device, and optical recording and reproducing device | Osamu Tsukahara, Tomo Kishigami | 2011-01-04 |
| 7447130 | Optical disc, optical disc device, optical disc recording device, and optical disc driving method | Tomo Kishigami, Nobuo Takeshita, Toru Yoshihara, Masaharu Ogawa | 2008-11-04 |
| 7406249 | Disk media, and method of and device for recording and playing back information on or from a disk media | Kouichi Shirakawa, Tadashi Kasezawa, Masato Nagasawa, Hiroyuki Ohata, Hidetoshi Mishima +1 more | 2008-07-29 |
| 7212728 | Disk media, and method of and device for recording and playing back information on or from a disk media | Kouichi Shirakawa, Tadashi Kasezawa, Masato Nagasawa, Hiroyuki Ohata, Hidetoshi Mishima +1 more | 2007-05-01 |
| 6539164 | Disk media, and method of and device for playing back information on or from a disk media | Kouichi Shirakawa, Tadashi Kasezawa, Masato Nagasawa, Hiroyuki Ohata, Hidetoshi Mishima +1 more | 2003-03-25 |
| 5438557 | Optical disk storage which provides pull-in of focus servo and pull-in of tracking servo | Osamu Ito, Kyosuke Yoshimoto, Kazuhiko Nakane, Akira Mashimo, Hiroyuki Onda +2 more | 1995-08-01 |
| 5309415 | Information recording method for overwriting a magneto-optic recording medium with two intensities of light beams | Koichi Takeuchi, Osamu Ito, Kyosuke Yoshimoto, Kunimaro Tanaka, Isao Watanabe +6 more | 1994-05-03 |
| 5272684 | Information recording method and information recording apparatus for magneto-optic recording information medium | Koichi Takeuchi, Osamu Ito, Kyosuke Yoshimoto, Kunimaro Tanaka, Isao Watanabe +6 more | 1993-12-21 |
| 5264911 | Laser power measuring jig for optical disk unit | Kazuhiko Nakane, Masayoshi Shimamoto, Keiji Nakatsu, Isao Watanabe, Masami Horita +4 more | 1993-11-23 |
| 5247509 | Disk storage which automatically adjusts to optimum recording/reproducing level | Kazuhiko Nakane, Kyosuke Yoshimoto, Teruo Furukawa, Akira Mashimo, Hiroyuki Onda +2 more | 1993-09-21 |
| 5185746 | Optical recording system with error correction and data recording distributed across multiple disk drives | Kunimaro Tanaka, Minoru Ozaki, Osamu Ito | 1993-02-09 |
| 5153879 | Optical recording system | Kunimaro Tanaka, Minoru Ozaki, Osamu Ito | 1992-10-06 |