Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7717349 | Semiconductor device for IC tag, IC tag and control method for IC tag for detecting and executing command from radio wave | Kazuhiro Akiyama, Hatsuhide Igarashi, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki +1 more | 2010-05-18 |
| 7468668 | Semiconductor device for IC tag, IC tag, and control method for IC tag for detecting and executing command from radio wave | Kazuhiro Akiyama, Hatsuhide Igarashi, Seiichi Okamoto, Toshiyuki Miyashita, Kazumi Seki +1 more | 2008-12-23 |
| 5710996 | Adaptive noise canceling system and FM radio communication receiver using said system | Weimin Sun | 1998-01-20 |
| 5555453 | Radio communication system | Weimin Sun | 1996-09-10 |
| 5548243 | Demodulator for demodulating a single side band signal, a real zero single side band signal and a frequency modulated signal, and a carrier signal reproducing circuit for the demodulator | Weimin Sun | 1996-08-20 |
| 5530660 | Digital band pass elliptic filter system | Weimin Sun | 1996-06-25 |
| 5506548 | SSB modulator for adjusting the carrier amplitude level of a modulated SSB signal | Weimin Sun | 1996-04-09 |
| 5479362 | Digital band pass elliptic filter system | Weimin Sun | 1995-12-26 |