Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9866535 | Content reproduction system, information processing terminal, media server, secure device, and server secure device | Hideki Matsushima, Teruto Hirota, Naoyoshi Otsubo, Natsume Matsuzaki, Norio Sanada | 2018-01-09 |
| 9152770 | Content reproduction system, information processing terminal, media server, secure device, and server secure device | Hideki Matsushima, Teruto Hirota, Naoyoshi Otsubo, Natsume Matsuzaki, Norio Sanada | 2015-10-06 |
| 8140675 | Content reproduction apparatus | Kaoru Yokota, Motoji Ohmori, Hideshi Ishihara, Makoto Tatebayashi | 2012-03-20 |
| 8037269 | Portable auxiliary storage device | Satoshi Okamoto, Taiho Nakazawa, Sadatoshi Chozui | 2011-10-11 |
| 7099245 | Optical disk, and method and apparatus for reproducing information recorded in optical disk | Takashi Yumiba, Teruyuki Takizawa, Mitsuro Moriya, Mitsuaki Oshima, Akihiko Nishioka | 2006-08-29 |
| 7012869 | Optical disc, reproduction apparatus, and disc identifier selecting apparatus | Takashi Yumiba, Keiichi Kawashima | 2006-03-14 |
| 7012879 | Optical disc, reproduction apparatus, and disc identifier selecting apparatus | Takashi Yumiba, Keiichi Kawashima | 2006-03-14 |
| 6901042 | Optical disc, having a certification pit for certifying that data recording thereon is original | Takashi Yumiba, Keiichi Kawashima | 2005-05-31 |
| 6891788 | Optical disk, and method and apparatus for reproducing information recorded in optical disk | Takashi Yumiba, Teruyuki Takizawa, Mitsuro Moriya, Mitsuaki Oshima, Akihiko Nishioka | 2005-05-10 |
| 6661768 | Optical disk, and method and apparatus for reproducing information recorded in optical disk | Takashi Yumiba, Teruyuki Takizawa, Mitsuro Moriya, Mitsuaki Oshima, Akihiko Nishioka | 2003-12-09 |
| 6526010 | Recording medium, method and apparatus for recording/reproducing information which has been scrambled using a medium identifier and a sector number | Takashi Yumiba, Teruyuki Takizawa | 2003-02-25 |
| 5992712 | Method and apparatus for processing hose material | Etsuo Nishikawa, Shinji Kimura | 1999-11-30 |
| 5619019 | Damper for loudspeaker | Takeshi Yoshimura, Teruho Yamada | 1997-04-08 |