Issued Patents All Time
Showing 51–75 of 77 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6964528 | Optical mount substrate, optical module, optical transmitter-receiver, optical transmitter-receiver system, and manufacturing method of optical mount substrate | Tsuguhiro Korenaga, Hiroyuki Asakura, Masanori Iida, Mikihiro Shimada | 2005-11-15 |
| 6940346 | Feedforward amplifier, communication apparatus, feedforward amplification method, program and medium | Masayuki Miyaji, Kaoru Ishida, Toshimitsu Matsuyoshi, Seiji Fujiwara | 2005-09-06 |
| 6940707 | Differential capacitor, differential antenna element, and differential resonator | Toshifumi Nakatani, Kayo Nakanishi | 2005-09-06 |
| 6930562 | Oscillation with multiple series circuits in parallel | Koji Takinami | 2005-08-16 |
| 6927664 | Mutual induction circuit | Toshifumi Nakatani | 2005-08-09 |
| 6917241 | Amplifier circuit, transmission device, amplification method, and transmission method | Toru Matsuura | 2005-07-12 |
| 6826418 | Radio circuit and control method of radio circuit | Masanori Iida, Hiroyuki Asakura | 2004-11-30 |
| 6784817 | Data generating method, data generator, and transmitter using the same | Toru Matsuura | 2004-08-31 |
| 6728526 | Fractional-N frequency synthesizer with multiple clocks having different timings | Ryoichi Yamada, Shunsuke Hirano, Yasunori Miyahara, Hisashi Takahashi, Hiroki Kojima | 2004-04-27 |
| 6717998 | Frequency synthesizer apparatus equipped with fraction part control circuit, communication apparatus, frequency modulator apparatus, and frequency modulating method | Toshifumi Nakatani, Hiroaki Kosugi, Masakatsu Maeda, Shunsuke Hirano | 2004-04-06 |
| 6658216 | Voltage controlled oscillator, FM signal optical transmitter, FM signal optical receiver and FM signal optical transmission system | Masanori Iida, Hiroyuki Asakura | 2003-12-02 |
| 6643470 | FM signal converter, FM signal optical transmitter and FM signal optical receiver | Masanori Iida, Hiroyuki Asakura | 2003-11-04 |
| 6639471 | Power amplifier circuit, control method for power amplifier circuit, and portable terminal apparatus for mobile communication | Toru Matsuura, Makoto Sakakura, Hiroyuki Handa, Toshio Obara | 2003-10-28 |
| 6563387 | Method and apparatus for synthesizing high-frequency signals for wireless communications | Shunsuke Hirano, Ryoichi Yamada, Yasunori Miyahara, Yukio Hiraoka | 2003-05-13 |
| 6441692 | PLL frequency synthesizer | Toshifumi Nakatani, Hiroaki Kosugi, Yuji Saito, Shunsuke Hirano, Hiroshi Haruki | 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 | Hiroaki Kosugi, Kaoru Ishida, Hiroshi Haruki, Junichi Yasuno, Kazuhiko Ikeda | 2002-07-16 |
| 6347219 | Transmission system, transmission/reception system, and local oscillator to be used in the same | Koji Takinami, Hiroaki Kosugi, Ikuo Ohta, Jyunichi Yoshizumi, Toshiaki Nakamura | 2002-02-12 |
| 6259895 | Receiver and transmitter-receiver | Yoshishige Yoshikawa, Yoshio Horiike, Hiroaki Kosugi | 2001-07-10 |
| 6229399 | Multiple frequency band synthesizer using a single voltage control oscillator | Daisuke Tobise, Hidenobu Kato | 2001-05-08 |
| 6226499 | Radio circuit apparatus and radio communication equipment | Toshifumi Nakatani, Hiroaki Kosugi, Youichi Morinaga, Hiroyuki Itokawa, Shunsuke Hirano | 2001-05-01 |
| 5987309 | Transceiver circuits for TDMA system with variable frequency second local oscillator | Hiroaki Kosugi, Youichi Morinaga, Toshio Obara | 1999-11-16 |
| 5872487 | Fast frequency switching synthesizer | Hiroaki Kosugi, Tomoki Uwano, Takeshi Miura, Youichi Morinaga | 1999-02-16 |
| 5815036 | Apparatus and method for controlling feedforward amplifier | Yoshishige Yoshikawa, Hiroaki Kosugi, Kazuo Nagao | 1998-09-29 |
| 5694089 | Fast frequency switching synthesizer | Hiroaki Kosugi, Tomoki Uwano | 1997-12-02 |
| 5691668 | Feedforward amplifier | Yoshishige Yoshikawa, Hiroaki Kosugi, Kazuo Nagao, Shinichi Kugou | 1997-11-25 |