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Yasuhiro Nunogawa
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Takasaki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor device
Patent number
8,295,057
Issue date
Oct 23, 2012
Murata Manufacturing Co., Ltd.
Iwamichi Kohjiro
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Semiconductor device
Patent number
7,817,437
Issue date
Oct 19, 2010
Renensas Electronics Corporation
Iwamichi Kohjiro
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Semiconductor device
Patent number
7,525,813
Issue date
Apr 28, 2009
Renesas Technology Corp.
Iwamichi Kohjiro
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High frequency power amplifier circuit and radio communication system
Patent number
7,193,471
Issue date
Mar 20, 2007
Renesas Technology Corp.
Takayuki Tsutsui
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Power source circuit for high frequency power amplifying circuit an...
Patent number
7,183,856
Issue date
Feb 27, 2007
Renesas Technology Corp.
Osamu Miki
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
High frequency power amplifier module, and wireless communication s...
Patent number
7,145,394
Issue date
Dec 5, 2006
Renesas Technology Corp.
Masahito Numanami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
High frequency power amplifier circuit and radio communication system
Patent number
7,123,095
Issue date
Oct 17, 2006
Renesas Technology Corp.
Takayuki Tsutsui
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Semiconductor device
Patent number
7,068,521
Issue date
Jun 27, 2006
Renesas Technology Corp.
Iwamichi Kohjiro
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Electronic component for high frequency power amplifier and radio c...
Patent number
7,053,708
Issue date
May 30, 2006
Renesas Technology Corp.
Hiroyuki Nagamori
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Directional coupler, high frequency circuit module and wireless com...
Patent number
6,972,640
Issue date
Dec 6, 2005
Renesas Technology Corporation
Hiroyuki Nagamori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device
Patent number
6,943,441
Issue date
Sep 13, 2005
Renesas Technology Corp.
Iwamichi Kohjiro
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High frequency power amplifier module and wireless communication sy...
Patent number
6,897,728
Issue date
May 24, 2005
Renesas Technology Corp.
Masahito Numanami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Power supply system for a high frequency power amplifier
Patent number
6,774,725
Issue date
Aug 10, 2004
Renesas Technology Corp.
Osamu Miki
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
High frequency power amplifying apparatus having amplifying stages...
Patent number
6,658,243
Issue date
Dec 2, 2003
Hitachi, Ltd.
Hitoshi Akamine
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High frequency power amplifier module, and wireless communications...
Patent number
6,617,927
Issue date
Sep 9, 2003
Hitachi, Ltd.
Masahito Numanami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Semiconductor device
Patent number
6,489,680
Issue date
Dec 3, 2002
Hitachi, Ltd.
Iwamichi Kohjiro
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Directional coupler, high frequency circuit module and wireless com...
Patent number
6,483,398
Issue date
Nov 19, 2002
Hitachi, Ltd.
Hiroyuki Nagamori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High frequency power amplifying apparatus having amplifying stages...
Patent number
6,463,267
Issue date
Oct 8, 2002
Hitachi, Ltd.
Hitoshi Akamine
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
High frequency power amplifier module and wireless communication sy...
Patent number
6,433,639
Issue date
Aug 13, 2002
Hitachi, Ltd.
Masahito Numanami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio communication apparatus and radio frequency power amplifier
Patent number
6,384,686
Issue date
May 7, 2002
Hitachi, Ltd.
Hirotaka Ueno
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Semiconductor device
Patent number
6,330,165
Issue date
Dec 11, 2001
Hitachi, Ltd.
Iwamichi Kohjiro
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Radio communication apparatus and radio frequency power amplifier
Patent number
6,288,612
Issue date
Sep 11, 2001
Hitachi, Ltd.
Hirotaka Ueno
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Radio communication apparatus and radio frequency power amplifier
Patent number
6,172,567
Issue date
Jan 9, 2001
Hitachi, Ltd.
Hirotaka Ueno
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Power switching circuit
Patent number
5,293,077
Issue date
Mar 8, 1994
Hitachi, Ltd.
Kunio Seki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Integrated circuit for high side driving of an inductive load
Patent number
5,142,171
Issue date
Aug 25, 1992
Hitachi, Ltd.
Yasuhiro Nunogawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Monolithic semiconductor integrated circuit for television receivers
Patent number
4,237,487
Issue date
Dec 2, 1980
Hitachi, Ltd.
Tsuneo Ikeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
SEMICONDUCTOR DEVICE
Publication number
20100231304
Publication date
Sep 16, 2010
Renesas Technology Corp.
Iwamichi Kohjiro
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
SEMICONDUCTOR DEVICE
Publication number
20090161329
Publication date
Jun 25, 2009
Iwamichi Kohjiro
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Semiconductor device
Publication number
20080048777
Publication date
Feb 28, 2008
RENESAS TECHNOLOGY CORP.
Iwamichi Kohjiro
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
High frequency power amplifier circuit and radio communication system
Publication number
20070008037
Publication date
Jan 11, 2007
Takayuki Tsutsui
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Semiconductor device
Publication number
20070001300
Publication date
Jan 4, 2007
RENESAS TECHNOLOGY CORP.
Iwamichi Kohjiro
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Semiconductor device
Publication number
20050269590
Publication date
Dec 8, 2005
RENESAS TECHNOLOGY CORP.
Iwamichi Kohjiro
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
High frequency power amplifier module, and wireless communication s...
Publication number
20050208905
Publication date
Sep 22, 2005
RENESAS TECHNOLOGY CORP.
Masahito Numanami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
High frequency power amplifier circuit and radio communication system
Publication number
20050179498
Publication date
Aug 18, 2005
Takayuki Tsutsui
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Power source circuit for high frequency power amplifying circuit an...
Publication number
20050122171
Publication date
Jun 9, 2005
Osamu Miki
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Electronic component for high frequency power amplifier and radio c...
Publication number
20040212434
Publication date
Oct 28, 2004
RENESAS TECHNOLOGY CORP.
Hiroyuki Nagamori
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
High frequency power amplifier module and wireless communication sy...
Publication number
20040012445
Publication date
Jan 22, 2004
Hitachi, Ltd.
Masahito Numanami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Power supply system for a high frequency power amplifier
Publication number
20030107440
Publication date
Jun 12, 2003
Osamu Miki
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Semiconductor device
Publication number
20030102574
Publication date
Jun 5, 2003
Hitachi, Ltd.
Iwamichi Kohjiro
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
High frequency power amplifying circuit, and mobile communication a...
Publication number
20030054780
Publication date
Mar 20, 2003
Hitachi, Ltd.
Yasuhiro Nunogawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Directional coupler, high frequency circuit module and wireless com...
Publication number
20030027539
Publication date
Feb 6, 2003
Hitachi, Ltd.
Hiroyuki Nagamori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
High frequency power amplifying apparatus having amplifying stages...
Publication number
20020183029
Publication date
Dec 5, 2002
Hitachi, Ltd.
Hitoshi Akamine
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
High frequency power amplifier module, and wireless communications...
Publication number
20020109549
Publication date
Aug 15, 2002
Hitachi, Ltd.
Masahito Numanami
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor device
Publication number
20020015291
Publication date
Feb 7, 2002
Hitachi, Ltd.
Iwamichi Kohjiro
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Directional coupler, high frequency circuit module and wireless com...
Publication number
20010043130
Publication date
Nov 22, 2001
Hitachi, Ltd.
Hiroyuki Nagamori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Radio communication apparatus and radio frequency power amplifier
Publication number
20010040481
Publication date
Nov 15, 2001
Hitachi, Ltd.
Hirotaka Ueno
H03 - BASIC ELECTRONIC CIRCUITRY