Issued Patents All Time
Showing 26–50 of 134 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8281362 | Verification method, verification program, recording medium, information processor, and integrated circuit | Minehisa Nagata, Senichi Onoda, Toshihisa Nakano, Masaya Yamamoto, Masayuki Kozuka +6 more | 2012-10-02 |
| 8261084 | Unauthorized contents detection system | Masao Nonaka, Yuichi Futa, Toshihisa Nakano, Kaoru Yokota, Motoji Ohmori +3 more | 2012-09-04 |
| 8250664 | Copyright protection data processing system and reproduction device | Takahiro Yamaguchi, Masaya Yamamoto, Sanzo Ugawa, Toshihisa Nakano | 2012-08-21 |
| 8171566 | Copyright protection data processing system and reproduction device | Toshihisa Nakano | 2012-05-01 |
| 8132024 | Digital work protection system, recording apparatus, reproduction apparatus, and recording medium | Toshihisa Nakano, Masato Yamamichi, Yuichi Futa, Motoji Ohmori, Makoto Tatebayashi +1 more | 2012-03-06 |
| 8086090 | Recording medium and playback apparatus for selecting sub-picture data according to combination of aspect ratio of display screen and type of display mode | Kazuhiko Yamauchi, Masayuki Kozuka, Shinichi Saeki, Katsuhiko Miwa | 2011-12-27 |
| 7900062 | Unauthorized contents detection system | Masao Nonaka, Yuichi Futa, Toshihisa Nakano, Kaoru Yokota, Motoji Ohmori +3 more | 2011-03-01 |
| 7877000 | Multimedia optical disc storing both video titles provided with AV functions and video titles with no such functions which can instantly distinguish between such kinds of titles, and a reproduction apparatus and reproduction method for such disc | Kazuhiko Yamauchi, Shinichi Saeki, Katsuhiko Miwa, Masayuki Kozuka | 2011-01-25 |
| 7840115 | Optical disc recording apparatus, computer-readable recording medium recording a file management program, and optical disc | Tokuo Nakatani, Yoshiho Gotoh, Yasushi Tamakoshi, Hiroshi Kato, Tomoyuki Okada | 2010-11-23 |
| 7742682 | Information recording medium, apparatus and method for recording or reproducing data thereof | Tomoyuki Okada, Kazuhiro Tsuga | 2010-06-22 |
| 7743261 | Unauthorized contents detection system | Masao Nonaka, Yuichi Futa, Toshihisa Nakano, Kaoru Yokota, Motoji Ohmori +3 more | 2010-06-22 |
| 7738330 | Information recording method and apparatus, information reproducing method and apparatus, information recording medium, program storage medium and program | Masanobu Nakamura, Motoki Kato, Wilhelmus Jacobus Van Gestel, Yoshiho Gotoh, Miyuki Sasaki | 2010-06-15 |
| 7644446 | Encryption and data-protection for content on portable medium | Clifford P. Strom, Ian Cameron Mercer, James M. Alkove, Jeffrey R. McKune, Kevin Leigh LaChapelle +3 more | 2010-01-05 |
| 7610626 | Recording medium, recording apparatus, reading apparatus, and program and method therefore | Takahiro Nagai, Hideshi Ishihara | 2009-10-27 |
| 7593622 | Information recording medium, information recoding/reproduction system apparatus, and information recording/reproduction method | Yoshiho Gotoh, Yoshihisa Fukushima, Tomoyuki Okada | 2009-09-22 |
| 7549061 | Unauthorized contents detection system | Masao Nonaka, Yuichi Futa, Toshihisa Nakano, Kaoru Yokota, Motoji Ohmori +3 more | 2009-06-16 |
| 7529160 | Method and apparatus for simultaneous recording and reproducing information recording medium therefor | Yoshiho Gotoh, Miyuki Sasaki, Tatsushi Bannai | 2009-05-05 |
| 7493662 | Data nullification device for nullifying digital content recorded on a recording medium, after the digital content has been reproduced, a predetermined time period has passed since the recording of the digital content, or the digital content has been moved to another recording medium | Yoshihiko Motohashi, Masaya Miyazaki, Yoshikatsu Ito | 2009-02-17 |
| 7483621 | Reproduction apparatus for selecting sub-data with use of numeric keypad | Kazuhiko Yamauchi, Masayuki Kozuka, Kazuhiro Tsuga, Shinichi Saeki, Katsuhiko Miwa | 2009-01-27 |
| 7480444 | Reproduction apparatus for cyclically changing sub-data | Kazuhiko Yamauchi, Masayuki Kozuka, Kazuhiro Tsuga, Shinichi Saeki, Katsuhiko Miwa | 2009-01-20 |
| 7474836 | Playback method for an after-recording operation | Tomoyuki Okada, Noriko Sugimoto, Kazuhiro Tsuga | 2009-01-06 |
| 7472427 | Content management method and content management apparatus | Takashi Shimojima, Mitsuhiro Sato, Naohiko Noguchi, Shinichi Matsui, Ryuji Inoue +1 more | 2008-12-30 |
| 7444065 | System control apparatus for moving picture data | Kazuhiko Yamauchi, Masayuki Kozuka, Shinichi Saeki, Katsuhiko Miwa | 2008-10-28 |
| 7379199 | Print controlling apparatus and print controlling method | Kenji Hisatomi, Kazuyuki Murata, Jun'ichi Kubota, Yukio Yagi | 2008-05-27 |
| 7376067 | Allocation of real time files | Wilhelmus Jacobus Van Gestel, Steven Broeils Luitjens, Yoshiho Gotoh, Miyuki Sasaki, Masanobu Nakamura +1 more | 2008-05-20 |