Issued Patents All Time
Showing 51–74 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6750707 | Multi-carrier RF amplifiers | Kenji Sekine | 2004-06-15 |
| 6653977 | Wireless handset | Hiroshi Okabe | 2003-11-25 |
| 6466774 | Wireless handset | Hiroshi Okabe | 2002-10-15 |
| 6462714 | Wireless handset using a slot antenna | Hiroshi Okabe | 2002-10-08 |
| 6452554 | Antenna element and radio communication apparatus | Hiroyuki Aoyama, Koji Fukamachi, Toshimasa Kawamura, Hiroshi Okabe | 2002-09-17 |
| 6396349 | Traveling wave power combiner and radio base station | Masami Ohnishi, Kenji Sekine | 2002-05-28 |
| 6384680 | RF amplifier with plural combiners | Kenji Sekine | 2002-05-07 |
| 6236272 | Traveling wave power combiner and radio base station | Masami Ohnishi, Kenji Sekine | 2001-05-22 |
| 6233434 | System for transmitting/receiving a signal having a carrier frequency band for a radio base station | — | 2001-05-15 |
| 6198441 | Wireless handset | Hiroshi Okabe | 2001-03-06 |
| 6188369 | Tunable slot antenna with capacitively coupled slot island conductor for precise impedance adjustment | Hiroshi Okabe | 2001-02-13 |
| 6091305 | PLL frequency synthesizer | Yoshinori Nagoya, Yuji Ishida | 2000-07-18 |
| 6046637 | Feedforward amplifier | Hiroshi Kishida, Hiroshi Okabe, Kenji Sekine, Kazuyuki Hori | 2000-04-04 |
| 6034644 | Tunable slot antenna with capacitively coupled slot island conductor for precise impedance adjustment | Hiroshi Okabe | 2000-03-07 |
| 6031494 | Handy-phone with shielded high and low frequency circuits and planar antenna | Hiroshi Okabe, Osamu Kamimura, Yoshitaka Imakado | 2000-02-29 |
| 6028561 | Tunable slot antenna | — | 2000-02-22 |
| 5977838 | High-speed phase-locked loop circuit | Yoshinori Nagoya, Yuji Ishida | 1999-11-02 |
| 5977924 | TEM slot array antenna | Hiroshi Kondoh | 1999-11-02 |
| 5963099 | PLL frequency synthesizer | Yoshinori Nagoya, Yuji Ishida | 1999-10-05 |
| 5914693 | Coaxial resonant slot antenna, a method of manufacturing thereof, and a radio terminal | Mikio Kuwahara, Hiroshi Okabe, Hiroshi Kishida, Kazuyuki Hori, Yoshitaka Imakado +1 more | 1999-06-22 |
| 5854971 | Output-controlled power amplifier, radio communication terminal and radio communication base station | Yoshinori Nagoya, Takashi Sakai, Yuji Ishida | 1998-12-29 |
| 5585807 | Small antenna for portable radio phone | — | 1996-12-17 |
| 5559524 | Antenna system including a plurality of meander conductors for a portable radio apparatus | Masami Ohnishi, Mikio Kuwahara | 1996-09-24 |
| 5298910 | Antenna for radio apparatus | Masami Ohnishi | 1994-03-29 |