Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8074254 | Recording device, playback device, recording method and playback method | Takamichi Mitsuhashi, Tadashi Saito, Katsutoshi Sakao, Yasuhisa Nakajima, Hiroshige Okamoto | 2011-12-06 |
| 7493648 | Data transmission device, data receiving device, data transmitting method, data receiving method, recording device, playback device, recording method, and playback method | Takamichi Mitsuhashi, Tadashi Saito, Katsutoshi Sakao, Yasuhisa Nakajima, Hiroshige Okamoto | 2009-02-17 |
| 7467097 | Business management method, business management apparatus and data broadcast delivery method | Takamichi Mitsuhashi, Tadashi Saito, Katsutoshi Sakao | 2008-12-16 |