Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7843394 | Radio antenna unit and mobile radio device equipped with the same | Kiyoshi Egawa, Yoshio Koyanagi | 2010-11-30 |
| 7777688 | Polarization switching antenna device | Kazuya Tani, Yoshio Koyanagi | 2010-08-17 |
| 7436364 | Mobile radio apparatus | Tomoaki Nishikido, Yutaka Saito, Yoshio Koyanagi, Kiyoshi Egawa | 2008-10-14 |
| 7227509 | Antenna device | Yutaka Saito, Hiroyuki Uno, Genichiro Ota | 2007-06-05 |
| 7149705 | Computer-related product user management and service system | Toshiko Nagayama, Eiichi Hattori, Tadashi Akutagawa | 2006-12-12 |
| 6765846 | Antenna apparatus and wristwatch radio communication device using same | Yutaka Saitou, Isamu Nagano | 2004-07-20 |
| 6683578 | Built-in antenna of portable radio apparatus | Tomoaki Nishikido, Yutaka Saito, Kouta Aoki | 2004-01-27 |
| 6573874 | Antenna and radio device | Yutaka Saito | 2003-06-03 |
| 6501436 | Antenna apparatus and wireless apparatus and radio relaying apparatus using the same | Yutaka Saito | 2002-12-31 |
| 6452558 | Antenna apparatus and a portable wireless communication apparatus | Yutaka Saitou, Tomoaki Nishikido | 2002-09-17 |
| 6441692 | PLL frequency synthesizer | Toshifumi Nakatani, Hisashi Adachi, Hiroaki Kosugi, Yuji Saito, Shunsuke Hirano | 2002-08-27 |
| 6421530 | Radio circuit having a local oscillator frequency which differs from the transmit frequency or the receive frequency and mobile radio apparatus | Hisashi Adachi, Hiroaki Kosugi, Kaoru Ishida, Junichi Yasuno, Kazuhiko Ikeda | 2002-07-16 |
| 5901345 | Transmitter of wireless system and high frequency power amplifier used therein | Hikaru Ikeda, Hiroaki Kosugi, Kaoru Ishida, Nobuo Fuse, Hideki Yagita | 1999-05-04 |
| 5770970 | Transmitter of wireless system and high frequency power amplifier used therein | Hikaru Ikeda, Hiroaki Kosugi, Kaoru Ishida, Nobuo Fuse, Hideki Yagita | 1998-06-23 |
| 4246539 | Frequency synthesizing system for AM.multidot.SSB transceiver | Masahiro Watanabe | 1981-01-20 |
| 4225828 | PLL Synthesizer | Masahiro Watanabe | 1980-09-30 |