Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE45767 | Information processing system, hand held cellular phone, and information processing method | — | 2015-10-20 |
| RE43680 | Information processing system, hand held cellular phone, and information processing method | — | 2012-09-25 |
| 7458514 | Information processing system, hand held cellular phone, and information processing method | — | 2008-12-02 |
| 7337957 | Authentication system authentication method authentication medium manufacturing device and authentication terminal device | Koji Ashizaki, Akira Shirakura | 2008-03-04 |
| 7299988 | Information processing system, hand held cellular phone, and information processing method | — | 2007-11-27 |
| 5832088 | Method and apparatus for preventing data copying from a disk using data lengths too large for a pirate medium | Heitaro Nakajima, Hiroshi Ogawa | 1998-11-03 |