Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6611493 | Communication, transmission and receiving method and apparatus using orthogonal frequency division multiplexing modulation system | Toshiyuki Akiyama, Seiichi Sano, Hiroyuki Takesue, Tatuhiro Nakada, Nobuo Tsukamoto | 2003-08-26 |
| 6512798 | Digital communication system of orthogonal modulation type | Toshiyuki Akiyama, Nobuo Tsukamoto | 2003-01-28 |