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Akira Takayama
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Miyagi-Ken, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Amplification circuit
Patent number
8,044,720
Issue date
Oct 25, 2011
Alps Electric Co., Ltd.
Tsutomu Kunishima
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Radio frequency amplifier with a waveguide filter for isolating amp...
Patent number
6,624,692
Issue date
Sep 23, 2003
Alps Electric Co., Ltd.
Shigetaka Suzuki
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Digital blocks television tuner having simple baseband signal proce...
Patent number
6,559,899
Issue date
May 6, 2003
Alps Electric Co., Ltd.
Takao Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Satellite broadcasting receiving tuner which inhibits interference...
Patent number
6,272,312
Issue date
Aug 7, 2001
Alps Electric Co., Ltd.
Akira Takayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Digital television broadcast receiver that demodulates an intermedi...
Patent number
6,094,235
Issue date
Jul 25, 2000
Alps Electric Co., Ltd.
Michihiro Komatsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Double conversion television tuner
Patent number
6,016,170
Issue date
Jan 18, 2000
Alps Electric Co., Ltd.
Akira Takayama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Reception band switching circuit with variable attenuation control
Patent number
5,483,209
Issue date
Jan 9, 1996
Alps Electric Co., Ltd.
Akira Takayama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Microwave oscillator
Patent number
4,724,403
Issue date
Feb 9, 1988
Alps Electric Co.
Akira Takayama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Frequency conversion circuit
Patent number
4,677,693
Issue date
Jun 30, 1987
Alps Electric Co., Ltd.
Akira Takayama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Oscillator having improved coupling between stripline and dielectri...
Patent number
4,673,895
Issue date
Jun 16, 1987
Alps Electric Co., Ltd.
Akio Tadachi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Microwave oscillator
Patent number
4,484,162
Issue date
Nov 20, 1984
Alps Electric Co., Ltd.
Hiroshi Kamada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Microwave receiver
Patent number
4,271,534
Issue date
Jun 2, 1981
Alps Electric Co., Ltd.
Akira Takayama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
AMPLIFICATION CIRCUIT
Publication number
20100231302
Publication date
Sep 16, 2010
Tsutomu Kunishima
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
ANTENNA DEVICE
Publication number
20080252549
Publication date
Oct 16, 2008
Yukio Ohtaki
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Analog phase-locked oscillator that prevents leakage of harmonics
Publication number
20030095007
Publication date
May 22, 2003
Alps Electric Co., Ltd.
Shigetaka Suzuki
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Radio frequency amplifier with small distortion and superior isolation
Publication number
20010035805
Publication date
Nov 1, 2001
Alps Electric Co., Ltd.
Shigetaka Suzuki
H01 - BASIC ELECTRIC ELEMENTS