Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7526601 | Data rewriting method for flash memory using partial erases | — | 2009-04-28 |
| 7093063 | Data rewriting for flash memory | — | 2006-08-15 |
| 7079573 | Apparatus and method for receiving and transmitting serial data | — | 2006-07-18 |
| 6614672 | Voltage generator | — | 2003-09-02 |
| 6314155 | Counting circuit with rewritable non-volatile memory, and counting method | Seiichi Yamazaki, Keiichi Itoh | 2001-11-06 |
| 6299069 | Integrated circuit for embedding in smart cards, and method of issuing smart cards | — | 2001-10-09 |
| 6272031 | Voltage generator | — | 2001-08-07 |
| 6104625 | Voltage generator | — | 2000-08-15 |
| 6018581 | Communication system and communication method | Kazuya Kawano, Masaharu Kizaki | 2000-01-25 |
| 6003768 | Call-unit count device | — | 1999-12-21 |
| 5799085 | Method of effecting mutual authentication | — | 1998-08-25 |
| 5790885 | Method for controlling IC card reader/writer to transmit same character frame upon receiving echo back character indicating an error exists in received character frame | — | 1998-08-04 |
| 5592619 | High-security IC card | — | 1997-01-07 |
| 5442165 | Secure IC card system with reusable prototype IC card | Shiro Atsumi, Toshinari Kondo | 1995-08-15 |