Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6493379 | Arrival direction estimation method using an array antenna and DS-CDMA receiver unit using the method | Yoshinori Tanaka, Shuji Kobayakawa | 2002-12-10 |
| 6473451 | Signal to interference power ratio measuring apparatus and signal to interference power ratio measuring method as well as transmission power controlling method under CDMA communication system | Hiroyuki Seki, Yoshinori Tanaka, Shuji Kobayakawa, Takeshi Toda | 2002-10-29 |
| 6385181 | Array antenna system of wireless base station | Yoshinori Tanaka, Shuji Kobayakawa | 2002-05-07 |
| 6347220 | Multiple-beam antenna system of wireless base station | Yoshinori Tanaka, Shuji Kobayakawa | 2002-02-12 |