Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6907088 | Contactless IC card for preventing incorrect data recovery in demodulation of an amplitude-modulated carrier wave | Tatsumi Sumi | 2005-06-14 |
| 6747907 | Voltage detection level correction circuit and semiconductor device | Yoshitaka Mano | 2004-06-08 |
| 6659352 | Semiconductor integrated circuit, a contactless information medium having the semiconductor integrated circuit, and a method of driving the semiconductor integrated circuit | Hiroaki Asada, Tatsumi Sumi, Taketoshi Matsuura, Atsuo Inoue | 2003-12-09 |
| 6038160 | Ferroelectric semiconductor memory device | Nobuyuki Moriwaki | 2000-03-14 |