Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9106797 | Content reproducing device and content reproducing method | Ryuichi Okamoto, Kouji Miura, Masaya Yamamoto, Masaki Igarashi, Katsumi Tokuda | 2015-08-11 |
| 8879400 | Mobile communication system, base station, cell coverage control method | Hitoshi Koike, Koji Ogawa | 2014-11-04 |
| 8483695 | Wireless terminal, wireless controller, core-network device, and wireless base station | — | 2013-07-09 |
| 8260714 | Terminal apparatus and system thereof | Ryuichi Okamoto, Akihiro Tanaka, Shinya Kemi, Koji Miura, Atsunori Sakurai +2 more | 2012-09-04 |
| 8166555 | Content reproducing device and content preproducing method | Ryuichi Okamoto, Kouji Miura, Masaya Yamamoto, Masaki Igarashi, Katsumi Tokuda | 2012-04-24 |
| 8077980 | Image processing apparatus | Natsume Matsuzaki, Kaoru Yokota, Masao Nonaka, Mitsuhiro Inoue, Akio Higashi | 2011-12-13 |
| 7984508 | Contents using device, and contents using method | Masaki Igarashi, Ryuichi Okamoto, Kouji Miura, Katsumi Tokuda | 2011-07-19 |
| 7940935 | Content playback apparatus, content playback method, computer program, key relay apparatus, and recording medium | Ryuichi Okamoto, Masaya Yamamoto, Katsumi Tokuda, Masaya Miyazaki, Masayuki Kozuka | 2011-05-10 |
| 7725399 | Content usage device and network system, and license information acquisition method | Masanori Nakanishi, Yasushi Uesaka, Kouji Miura, Akio Higashi, Takaaki Namba | 2010-05-25 |
| 7715564 | License information conversion apparatus | Akio Higashi | 2010-05-11 |
| 7630922 | Content distribution management system and content distribution management method | Takaaki Namba, Takashi Matsuo, Akio Higashi, Hiroki Murakami | 2009-12-08 |
| 7451202 | Information management system having a common management server for establishing secure communication among groups formed out of a plurality of terminals | Takuji Hiramoto, Kouji Miura, Masaya Yamamoto, Mitsuhiro Inoue | 2008-11-11 |
| 7359883 | License management system, license management device, relay device and terminal device | Takaaki Namba, Takashi Matsuo, Akio Higashi, Hiroki Murakami, Masanori Nakanishi +2 more | 2008-04-15 |
| 7260720 | Device authentication system and method for determining whether a plurality of devices belong to a group | Masaya Yamamoto, Kouji Miura | 2007-08-21 |
| 4571461 | Conference telephone apparatus | Kinichi Uno | 1986-02-18 |