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Iwao Kojima
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Kyoto, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Variable gain amplifier, mixer and quadrature modulator using the same
Patent number
7,432,765
Issue date
Oct 7, 2008
Matsushita Electric Industrial Co., Ltd.
Iwao Kojima
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Differential amplifier circuitry formed on semiconductor substrate...
Patent number
7,382,198
Issue date
Jun 3, 2008
Matsushita Electric Industrial Co., Ltd.
Masanori Nakamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Amplitude detecting method, AGC circuit gain controlling method, am...
Patent number
7,242,246
Issue date
Jul 10, 2007
Matsushita Electric Industrial Co., Ltd.
Yoshitsugu Takasawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Frequency divider
Patent number
6,075,834
Issue date
Jun 13, 2000
Matsushita Electric Industrial Co., Ltd.
Iwao Kojima
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
POWER AMPLIFICATION CIRCUIT AND COMMUNICATION APPARATUS
Publication number
20120094727
Publication date
Apr 19, 2012
Shigeru Morimoto
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Variable attenuator
Publication number
20070139119
Publication date
Jun 21, 2007
Iwao Kojima
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Variable gain amplifier
Publication number
20070132512
Publication date
Jun 14, 2007
Matsushita Electric Industrial Co., Ltd.
Takahito Miyazaki
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Semiconductor device having electrostatic breakdown protection element
Publication number
20070120244
Publication date
May 31, 2007
Iwao Kojima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Differential amplifier circuitry formed on semiconductor substrate...
Publication number
20060244540
Publication date
Nov 2, 2006
Masanori Nakamura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Variable gain amplifier, mixer and quadrature modulator using the same
Publication number
20060220743
Publication date
Oct 5, 2006
Iwao Kojima
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Amplitude detecting method, AGC circuit gain controlling method, am...
Publication number
20050231285
Publication date
Oct 20, 2005
Matsushita Electric Industrial Co., Ltd.
Yoshitsugu Takasawa
H03 - BASIC ELECTRONIC CIRCUITRY