Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5715525 | Radio frequency circuit for portable radion communication device | Yoshiaki Tarusawa | 1998-02-03 |
| 5412342 | Power amplifier device comprising a plurality of feedforward distortion compensating circuits in parallel | Hironori Sakamoto, Akira Ito | 1995-05-02 |
| 5394120 | Device for testing an amplifier | Hironori Sakamoto, Akira Ito, Masaaki Fujiwara | 1995-02-28 |
| 5363072 | High-frequency power divider-combiner | Hironori Sakamoto, Akira Ito | 1994-11-08 |
| 5327096 | Control circuit for automatically controlled feed forward nonlinear distortion compensation amplifier | Hironori Sakamoto, Akira Ito | 1994-07-05 |
| 5313657 | Receiver capable of reliably detecting a failure | Hironori Sakamoto, Satoru Ohara, Shoichi Narahashi, Makoto Maeta | 1994-05-17 |
| 5302908 | High precision phase comparator and phase locked loop | Yoshiaki Tarusawa, Kazuaki Murota | 1994-04-12 |
| 5251330 | Linear transmitter | Kouji Chiba, Yasushi Yamao, Shigeru Tomisato, Tadao Takami | 1993-10-05 |
| 5231632 | Radio communication equipment for a mobile station and traffic channel hand-off method using the same | Yasushi Yamao, Yoshiaki Tarusawa | 1993-07-27 |
| 5166634 | Feed-forward amplifier | Shoichi Narahashi, Makoto Maeta, Kazuaki Murota | 1992-11-24 |
| 5146178 | Impedance-matched, class F high-frequency amplifier | Sadayuki Nishiki | 1992-09-08 |
| 4980652 | Frequency synthesizer having compensation for nonlinearities | Yoshiaki Tarusawa, Shigeki Saito, Yasushi Yamao | 1990-12-25 |
| 4943783 | Feed forward distortion correction circuit | — | 1990-07-24 |
| 4902983 | Nonlinear signal generating circuit and nonlinear compensating device using the same | Yoshinori Fujiki, Masatoshi Ishida, Nobuaki Imai | 1990-02-20 |
| 4776032 | Repeater for a same frequency with spillover measurement | Hitoshi Odate, Hisao Takahashi, Toshio Suzuki, Sadayuki Nishiki, Teruya Fujii | 1988-10-04 |
| 4772856 | Power amplifier | Sadayuki Nishiki | 1988-09-20 |
| 4329655 | Adaptive equalization system for nonlinearities | Satoshi Ohyama | 1982-05-11 |