Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9584857 | Digital broadcast receiver and information updating method therefor | Kazuya Takaki, Keiichi Shirasuka | 2017-02-28 |
| 9043858 | Digital broadcast receiver and information updating method therefor | Aki Kimura, Keiichi Shirasuka, Kazuya Takaki | 2015-05-26 |
| 8971404 | Digital broadcast receiving apparatus, digital broadcast receiving method and computer program | Kensaku Saitoh, Keiichi Shirasuka | 2015-03-03 |
| 8938772 | Digital broadcast reception device and digital broadcast reception method | Keiichi Shirasuka, Daiki Matsuura | 2015-01-20 |
| 8837641 | Digital broadcast receiver | Keiichi Shirasuka | 2014-09-16 |
| 8614770 | Digital broadcast receiver and receiving method | Daiki Matsuura, Keiichi Shirasuka, Minoru Sota, Tadashi Sakaguchi | 2013-12-24 |
| 7756233 | Data receiving device and data receiving method | Sadayuki Inoue, Toshimitsu Sato, Tsuyoshi Kasaura, Tetsuro Shida, Takashi Fujiwara +1 more | 2010-07-13 |
| 7584360 | Data sending/receiving device and digital certificate issuing method | Tsuyoshi Kasaura, Sadayuki Inoue, Tetsuro Shida, Toshimitsu Sato, Masahiro Tsujishita | 2009-09-01 |