Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9143091 | Distortion compensating apparatus, transmitter, distortion compensating method, and transfer function calculating method | Yasuyuki Oishi, Eisuke Fukuda | 2015-09-22 |
| 5287069 | Constant-amplitude wave combination type amplifier | Naofumi Okubo, Yoshihiko Asano, Hiroshi Kurihara, Kazuhiko Kobayashi, Shuji Kobayakawa +1 more | 1994-02-15 |
| 5264807 | High frequency power amplifier with high efficiency and low distortion | Naofumi Okubo, Yoshihiko Asano, Hiroshi Kurihara, Kazuhiko Kobayashi, Shuji Kobayakawa +1 more | 1993-11-23 |
| 5095283 | Amplifier circuit having feedback circuit | Kazuhiko Kobayashi, Hiroshi Kurihara, Naofumi Okubo, Yoshihiko Asano, Shuji Kobayakawa +1 more | 1992-03-10 |
| 4860316 | Multilevel amplitude modulation and demodulation communication system | Sadao Takenaka, Yoshihito Aono, Takanori Iwamatsu, Morihiko Minowa, Hiroshi Nakamura | 1989-08-22 |
| 4665532 | Radio communication system | Eisuke Fukuda, Yukio Takeda, Hiroshi Nakamura, Susumu Sasaki, Sadao Takenaka | 1987-05-12 |
| 4588962 | Device for distributing and combining microwave electric power | Toshiyuki Saito, Yasuyuki Tokumitsu, Naofumi Okubo, Hiroshi Kurihara | 1986-05-13 |