Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8130614 | Optical storage medium, information recording apparatus, and information reproducing apparatus | Shin-ichi Kadowaki, Masaru Yamaoka, Toyoji Gushima, Makoto Usui, Shin-ichi Tanaka +1 more | 2012-03-06 |
| 8031869 | Information recording medium, usage management method, and usage management apparatus | Masaru Yamaoka, Takahiro Nagai, Hideshi Ishihara | 2011-10-04 |
| 8027237 | Optical storage medium, information recording apparatus, and information reproducing apparatus | Shin-ichi Kadowaki, Masaru Yamaoka, Toyoji Gushima, Makoto Usui, Shin-ichi Tanaka +1 more | 2011-09-27 |
| 7649824 | Optical storage medium control data region | Shin-ichi Kadowaki, Masaru Yamaoka, Toyoji Gushima, Makoto Usui, Shin-ichi Tanaka +1 more | 2010-01-19 |
| 7555205 | Method for controlling defect of optical disk, optical disk recording device, and optical disk reproducing device | Masaru Yamaoka, Takahiro Nagai | 2009-06-30 |
| 7400725 | Information recording medium for recording a scrambled part of content information, and method and apparatus for reproducing information recorded therein | Hideshi Ishihara, Yoshihisa Fukushima, Makoto Tatebayashi, Kaoru Yokota | 2008-07-15 |
| 7209422 | Optical disc recording method and optical disc reproducing method | Takahiro Sato, Takahiro Nagai | 2007-04-24 |
| 7196994 | Information recording medium, information recording apparatus and information reproduction apparatus for the same | Masaru Yamaoka, Takahiro Nagai, Hideshi Ishihara | 2007-03-27 |
| 7164644 | Optical disc, recording apparatus method, and reproduction apparatus and method | Takahiro Nagai, Hideshi Ishihara, Rie Takahashi, Mamoru Shoji, Hiroyuki Yamaguchi +1 more | 2007-01-16 |
| 7136335 | Information recording medium, recording apparatus, and reproduction apparatus | Masaru Yamaoka, Takahiro Nagai | 2006-11-14 |
| 7133349 | Optical disc, recording apparatus and method, and reproduction apparatus and method | Takahiro Nagai, Hideshi Ishihara, Rie Takahashi, Mamoru Shoji, Hiroyuki Yamaguchi +1 more | 2006-11-07 |
| 7099245 | Optical disk, and method and apparatus for reproducing information recorded in optical disk | Teruyuki Takizawa, Mitsuro Moriya, Mitsuaki Oshima, Akihiko Nishioka, Koichi Morioka | 2006-08-29 |
| 7092333 | Device and program for checking optical disks | Kouichi Morioka, Keiichi Kawashima | 2006-08-15 |
| 7092342 | Optical disc, recording apparatus and method, and reproduction apparatus and method | Takahiro Nagai, Hideshi Ishihara, Rie Takahashi, Mamoru Shoji, Hiroyuki Yamaguchi +1 more | 2006-08-15 |
| 7023779 | Optical disc, recording device, and recording device | Keiichi Kawashima, Kouichi Morioka | 2006-04-04 |
| 7012879 | Optical disc, reproduction apparatus, and disc identifier selecting apparatus | Koichi Morioka, Keiichi Kawashima | 2006-03-14 |
| 7012869 | Optical disc, reproduction apparatus, and disc identifier selecting apparatus | Koichi Morioka, Keiichi Kawashima | 2006-03-14 |
| 6938162 | Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system | Takahiro Nagai, Hideshi Ishihara, Yuji Takagi, Mamoru Shoji, Mitsuaki Oshima +6 more | 2005-08-30 |
| 6901042 | Optical disc, having a certification pit for certifying that data recording thereon is original | Koichi Morioka, Keiichi Kawashima | 2005-05-31 |
| 6891788 | Optical disk, and method and apparatus for reproducing information recorded in optical disk | Teruyuki Takizawa, Mitsuro Moriya, Mitsuaki Oshima, Akihiko Nishioka, Koichi Morioka | 2005-05-10 |
| 6735160 | Optical disc, and recording apparatus, recording method, and reproducing apparatus for the same | Harumitsu Miyashita, Hiromichi Ishibashi, Shinichi Tanaka | 2004-05-11 |
| 6661768 | Optical disk, and method and apparatus for reproducing information recorded in optical disk | Teruyuki Takizawa, Mitsuro Moriya, Mitsuaki Oshima, Akihiko Nishioka, Koichi Morioka | 2003-12-09 |
| 6654380 | Data exchange unit | Yoshihiro Tabira, Hirotaka Itoh, Isamu Ishimura | 2003-11-25 |
| 6526010 | Recording medium, method and apparatus for recording/reproducing information which has been scrambled using a medium identifier and a sector number | Koichi Morioka, Teruyuki Takizawa | 2003-02-25 |
| 6182263 | Apparatus for generating, recording and transmitting an error product code block having an improved check code arrangement | Tadashi Kojima, Koichi Hirayama, Yoshihisa Fukushima | 2001-01-30 |