Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4908837 | Receiver for spread spectrum communication | Masahiro Hamatsu, Shigeo Akazawa | 1990-03-13 |
| 4899364 | Automatic gain control system | Shigeo Akazawa, Masahiro Hamatsu | 1990-02-06 |
| 4875221 | Spread spectrum receiver | — | 1989-10-17 |
| 4866735 | Spread spectrum communicating method | Masahiro Hamatsu | 1989-09-12 |
| 4866734 | Receiver for spread spectrum communication | Shigeo Akazawa, Masahiro Hamatsu | 1989-09-12 |
| 4848940 | Typewriter for format printing | — | 1989-07-18 |
| 4847861 | Maximum length linearly occurring code sequence generator in a spread spectrum communication system | Masahiro Hamatsu | 1989-07-11 |
| 4834566 | Typewriter having means for interruption of automatic erasing operation, and/or automatic suspension thereof at each space between successive words | Hideo Ueno, Kiyoshi Yamakawa, Yuji Kawakami, Ryoichi Sasaki | 1989-05-30 |
| 4821033 | Matrix switching apparatus for preventing pseudo input | Sae Takenaka | 1989-04-11 |
| 4820063 | Typewriter with a correction function | — | 1989-04-11 |
| 4725767 | Phase shifter | — | 1988-02-16 |
| 4618830 | PSK demodulator using asynchronous local oscillator | Ryuichi Asai | 1986-10-21 |
| 4610031 | Receiver including surface acoustic wave amplifier | — | 1986-09-02 |
| 4608540 | Phase-shift keying demodulator | Masahiro Tsuchiya | 1986-08-26 |
| 4426732 | Receiver having a surface elastic wave high frequency amplifier with a frequency-controlled pump oscillator | — | 1984-01-17 |
| 4426737 | Circuit for generating a pumping signal for a surface elastic wave parametric device in a receiver | — | 1984-01-17 |
| 4398837 | Printing apparatus and method for preventing printing errors in same | Hiroshi Torii | 1983-08-16 |
| 4335322 | Pulse generator for producing a pulse having a pulse width dependent on an input signal | Kouichi Tanaka | 1982-06-15 |
| 4331885 | Gate circuit | Kiyoshi Amazawa, Takashi Taniyama | 1982-05-25 |
| 4268793 | Noise eliminating circuit | Kiyoshi Amazawa, Takashi Taniyama | 1981-05-19 |
| 4216430 | Noise eliminating circuit with automatic gain control | Kiyoshi Amazawa, Takashi Taniyama | 1980-08-05 |
| 4207432 | Noise eliminating system | Kiyoshi Amazawa | 1980-06-10 |
| 4189679 | Noise detecting circuit having noise-immune AGC | Kiyoshi Amazawa | 1980-02-19 |