Kazuharu Aoki

Person

Fukushima-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Balanced-unbalanced conversion circuit
- Patent number 8,018,297
- Issue date Sep 13, 2011
- Alps Electric Co., Ltd.
- Kazuharu Aoki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Gain control circuit capable of reducing change in gain due to vari...
- Patent number 7,400,197
- Issue date Jul 15, 2008
- Alps Electric Co., Ltd.
- Shoichi Asano
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Frequency synthesizer capable of obtaining signals in three frequen...
- Patent number 6,965,759
- Issue date Nov 15, 2005
- Alps Electric Co., Ltd.
- Kazuharu Aoki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Compact transmitter detection circuit with a wide dynamic range
- Patent number 6,608,502
- Issue date Aug 19, 2003
- Alps Electric Co., Ltd.
- Kazuharu Aoki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Signal level adjusting circuit using coupling stage for preventing...
- Patent number 6,359,518
- Issue date Mar 19, 2002
- Alps Electric Co., Ltd.
- Kazuharu Aoki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Receiver integrated circuit for mobile telephone
- Patent number 6,236,848
- Issue date May 22, 2001
- Alps Electric Co., Ltd.
- Sadao Igarashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Active low-pass filter
- Patent number 6,177,837
- Issue date Jan 23, 2001
- Alps Electric Co., Ltd.
- Kazuharu Aoki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Double-balanced modulator and quadri-phase shift keying device
- Patent number 6,114,921
- Issue date Sep 5, 2000
- Alps Electric Co. Ltd.
- Kazuharu Aoki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplifier circuit having common AGC to IF and RF amplifiers for use...
- Patent number 5,926,749
- Issue date Jul 20, 1999
- Alps Electric Co., Ltd.
- Sadao Igarashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
AGC voltage correction circuit
- Patent number 5,900,782
- Issue date May 4, 1999
- Alps Electric Co., Ltd.
- Sadao Igarashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Multistage variable gain amplifier circuit
- Patent number 5,900,781
- Issue date May 4, 1999
- Alps Electric Co., Ltd.
- Sadao Igarashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Transmitting/receiving unit having automatic gain control system wi...
- Patent number 5,471,654
- Issue date Nov 28, 1995
- Alps Electric Co., Ltd.
- Mitsunari Okazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Gain control circuit
- Patent number 5,327,097
- Issue date Jul 5, 1994
- Alps Electric Co., Ltd.
- Sadao Igarashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
UHF-VHF combination tuner
- Patent number 4,596,044
- Issue date Jun 17, 1986
- Alps Electric Co., Ltd.
- Kazuharu Aoki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
VHF tuner
- Patent number 4,581,768
- Issue date Apr 8, 1986
- Alps Electric Co., Ltd.
- Kazuharu Aoki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High-frequency input circuit for two inputs
- Patent number 4,369,414
- Issue date Jan 18, 1983
- Alps Electric Co. Ltd.
- Kazuharu Aoki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Construction of tuning circuit in tuner
- Patent number 4,359,701
- Issue date Nov 16, 1982
- Alps Electric Co., Ltd.
- Kazuharu Aoki
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Electronic circuit unit having low transmission loss
- Publication number 20070040630
- Publication date Feb 22, 2007
- Alps Electric Co., Ltd.
- Kazuharu Aoki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Gain control circuit capable of reducing change in gain due to vari...
- Publication number 20060255858
- Publication date Nov 16, 2006
- Alps Electric Co., Ltd.
- Shoichi Asano
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Compact transmitter detection circuit with a wide dynamic range
- Publication number 20030020515
- Publication date Jan 30, 2003
- Alps Electric Co., Ltd.
- Kazuharu Aoki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Frequency synthesizer capable of obtaining signals in three frequen...
- Publication number 20020028667
- Publication date Mar 7, 2002
- Alps Electric Co., Ltd.
- Kazuharu Aoki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Frequency synthesizer having shortened lock-up time
- Publication number 20020024364
- Publication date Feb 28, 2002
- Alps Electric Co., Ltd.
- Kazuharu Aoki
- H03 - BASIC ELECTRONIC CIRCUITRY

Kazuharu Aoki

Person

Patents Grantslast 30 patents

Balanced-unbalanced conversion circuit

Gain control circuit capable of reducing change in gain due to vari...

Frequency synthesizer capable of obtaining signals in three frequen...

Compact transmitter detection circuit with a wide dynamic range

Signal level adjusting circuit using coupling stage for preventing...

Receiver integrated circuit for mobile telephone

Active low-pass filter

Double-balanced modulator and quadri-phase shift keying device

Amplifier circuit having common AGC to IF and RF amplifiers for use...

AGC voltage correction circuit

Multistage variable gain amplifier circuit

Transmitting/receiving unit having automatic gain control system wi...

Gain control circuit

UHF-VHF combination tuner

VHF tuner

High-frequency input circuit for two inputs

Construction of tuning circuit in tuner

Patents Applicationslast 30 patents

Electronic circuit unit having low transmission loss

Gain control circuit capable of reducing change in gain due to vari...

Compact transmitter detection circuit with a wide dynamic range

Frequency synthesizer capable of obtaining signals in three frequen...

Frequency synthesizer having shortened lock-up time