Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6459402 | Method for measuring distance and position using spectrum signal, and an equipment using the method | Katsuhiko Tsunehara, Nobukazu Doi, Mikio Kuwahara | 2002-10-01 |
| 6456830 | Diversity wireless communication method and its wireless communication apparatus | Atsushi Ogino, Hideya Suzuki | 2002-09-24 |
| 6388562 | Contactless IC card communication system and related method | Masahiro Takiguchi, Kiyoshi Takahashi, Tatsuya Hirata, Shigeru Date, Hisanobu Dobashi +4 more | 2002-05-14 |