Kiyoshi Amazawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
FM demodulator with tracking filter
- Patent number 5,051,703
- Issue date Sep 24, 1991
- Clarion Co., Ltd.
- Kazuhiro Idogawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Pulsating noise removal device
- Patent number 4,899,389
- Issue date Feb 6, 1990
- Clarion Co., Ltd.
- Kiyoshi Amazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pulsating noise removal device
- Patent number 4,862,097
- Issue date Aug 29, 1989
- Clarion, Co., Ltd.
- Kiyoshi Amazawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Preceding value holding gate circuit for eliminating pulsive noises
- Patent number 4,701,715
- Issue date Oct 20, 1987
- Clarion Co., Ltd.
- Kiyoshi Amazawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Control voltage generating circuit for activating a noise reduction...
- Patent number 4,694,500
- Issue date Sep 15, 1987
- Clarion Co., Ltd.
- Satoru Tazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Noise eliminating signal compensation circuit
- Patent number 4,682,045
- Issue date Jul 21, 1987
- Clarion Co., Ltd.
- Kiyoshi Amazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Demodulator comprising an indicator circuit for use in common to ca...
- Patent number 4,680,792
- Issue date Jul 14, 1987
- NEC Corporation
- Kouichi Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Circuit arrangement capable of adjusting a threshold level of a dif...
- Patent number 4,634,902
- Issue date Jan 6, 1987
- Clarion Co., Ltd.
- Kouichi Tanaka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Control circuit
- Patent number 4,612,662
- Issue date Sep 16, 1986
- NEC Corporation and Clarion Co., Ltd.
- Takeshi Kuwajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Gate circuit
- Patent number 4,331,885
- Issue date May 25, 1982
- Clarion Co., Ltd.
- Kiyoshi Amazawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Circuit for compensating for discontinuity of a noise cancelled signal
- Patent number 4,305,042
- Issue date Dec 8, 1981
- Nippon Electric Co., Ltd.
- Kouichi Tanaka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Noise eliminating circuit
- Patent number 4,301,541
- Issue date Nov 17, 1981
- Nippon Electric Co., Ltd.
- Koichi Tanaka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Automatic gain control circuit for a noise pulse canceller
- Patent number 4,300,104
- Issue date Nov 10, 1981
- Nippon Electric Co.
- Kouichi Tanaka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Automatic gain control circuit comprising a circuit for comparing a...
- Patent number 4,297,645
- Issue date Oct 27, 1981
- Nippon Electric Co., Ltd.
- Kouichi Tanaka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Noise eliminating circuit
- Patent number 4,268,793
- Issue date May 19, 1981
- Kiyoshi Amazawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Noise eliminating circuit with automatic gain control
- Patent number 4,216,430
- Issue date Aug 5, 1980
- Clarion Co., Ltd.
- Kiyoshi Amazawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Noise eliminating system
- Patent number 4,207,432
- Issue date Jun 10, 1980
- Clarion Co., Ltd.
- Kiyoshi Amazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Noise detecting circuit having noise-immune AGC
- Patent number 4,189,679
- Issue date Feb 19, 1980
- Clarion Co., Ltd.
- Kiyoshi Amazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Noise eliminating circuit
- Patent number 4,178,552
- Issue date Dec 11, 1979
- Clarion Co., Ltd.
- Kiyoshi Amazawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Noise clearing system
- Patent number 4,130,805
- Issue date Dec 19, 1978
- Clarion Co., Ltd.
- Masaharu Mori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Kiyoshi Amazawa

Person

Patents Grantslast 30 patents

FM demodulator with tracking filter

Pulsating noise removal device

Pulsating noise removal device

Preceding value holding gate circuit for eliminating pulsive noises

Control voltage generating circuit for activating a noise reduction...

Noise eliminating signal compensation circuit

Demodulator comprising an indicator circuit for use in common to ca...

Circuit arrangement capable of adjusting a threshold level of a dif...

Control circuit

Gate circuit

Circuit for compensating for discontinuity of a noise cancelled signal

Noise eliminating circuit

Automatic gain control circuit for a noise pulse canceller

Automatic gain control circuit comprising a circuit for comparing a...

Noise eliminating circuit

Noise eliminating circuit with automatic gain control

Noise eliminating system

Noise detecting circuit having noise-immune AGC

Noise eliminating circuit

Noise clearing system