Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8687799 | Data processing circuit and control method therefor | Seiji Esaka | 2014-04-01 |
| 8630956 | Obscuring image of person in picture when consent to share image is denied | Shuhei Sonoda, Seiji Esaka, Masayuki Takada | 2014-01-14 |
| 8514688 | Communication system, communication apparatus, and communication method | Kunihide Fujii, Tadashi Morita, Yoshihisa Takayama | 2013-08-20 |
| 8180925 | Service providing method and integrated circuit | Akihiko Yamagata, Kenji Nakada, Akira Fukada, Tadashi Morita | 2012-05-15 |
| 7913307 | Semiconductor integrated circuit and information processing apparatus | Seiji Esaka | 2011-03-22 |
| 7821322 | Chip for non-contact reader/writer having power-supply management function | Akihiko Yamagata | 2010-10-26 |
| 7802018 | Service providing method and integrated circuit | Akihiko Yamagata, Kenji Nakada, Akira Fukada, Tadashi Morita | 2010-09-21 |
| 7609109 | Contactless IC card system | — | 2009-10-27 |
| 7554383 | Chip for non-contact reader/writer having power-supply management function | Akihiko Yamagata | 2009-06-30 |
| 7519655 | Service providing method and integrated circuit | Akihiko Yamagata, Kenji Nakada, Akira Fukada, Tadashi Morita | 2009-04-14 |
| 7311246 | Method and system for transmitting electronic value information | — | 2007-12-25 |
| 7283013 | Contactless IC card system | — | 2007-10-16 |
| 7248114 | Contactless IC card system | — | 2007-07-24 |
| 7240846 | IC chip and information processing terminal | Akihiko Yamagata | 2007-07-10 |
| 7209706 | Communication apparatus and communication method | Kunihide Fujii, Tadashi Morita, Yoshihisa Takayama | 2007-04-24 |
| 7048196 | Data communication device | — | 2006-05-23 |
| 7031662 | Wireless communication circuit, wireless communication terminal and method, recording medium, and program | Mamoru Suzuki, Susumu Kusakabe, Tomonori Nagano, Nishiki Mizusawa, Takaki Nakazawa | 2006-04-18 |
| 7016432 | Contactless IC card system | — | 2006-03-21 |
| 6950074 | Noncontact type IC card | Osamu Ishii, Toshiharu Tsuchiya | 2005-09-27 |
| 6886752 | Portable electronic apparatus, IC card and reader/writer | Yuji Murayama | 2005-05-03 |
| 6784730 | Contactless IC card system | — | 2004-08-31 |
| 6626363 | Antenna device and card-shaped storage medium | — | 2003-09-30 |
| 6586988 | Demodulating circuits for contactless integrated circuit cards and systems | — | 2003-07-01 |
| 6567394 | Non-contact IC card and system for performing data communication | — | 2003-05-20 |
| 6560082 | Power source unit and card-like memory medium | — | 2003-05-06 |