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Osamu Hikino
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Fujisawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
High-frequency circuit apparatus and communication apparatus using...
Patent number
7,760,691
Issue date
Jul 20, 2010
Hitachi Media Electronics Co., Ltd.
Takao Totsuka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmission circuit, antenna duplexer, and radio-frequency switch...
Patent number
7,579,929
Issue date
Aug 25, 2009
Hitachi Media Electronics Co., Ltd.
Osamu Hikino
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High-frequency circuit apparatus and communication apparatus using...
Patent number
7,570,622
Issue date
Aug 4, 2009
Hitachi Media Electronics Co., Ltd.
Takao Totsuka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Switch circuit, front end module and radio terminal including switc...
Patent number
7,522,015
Issue date
Apr 21, 2009
Hitachi Media Electronics Co., Ltd.
Yuuichi Oikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Antenna sharing device and wireless communication terminal using th...
Patent number
7,499,678
Issue date
Mar 3, 2009
Hitachi Media Electronics Co., Ltd.
Nobuhiko Shibagaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile station for spread spectrum communication
Patent number
6,625,202
Issue date
Sep 23, 2003
Hitachi, Ltd.
Shigeyuki Sudo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Band-switchable surface acoustic wave antenna duplexer and mobile r...
Patent number
6,525,624
Issue date
Feb 25, 2003
Hitachi Media Electronics Co., Ltd.
Mitsutaka Hikita
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Surface acoustic wave device and communication device using the same
Patent number
5,331,247
Issue date
Jul 19, 1994
Hitachi, Ltd.
Hiroaki Ikeda
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
MOBILE COMMUNICATION TERMINAL MODULE AND MOBILE COMMUNICATION TERMINAL
Publication number
20130242809
Publication date
Sep 19, 2013
Hitachi Media Electronics Co., Ltd.
Masazumi Tone
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MODULE FOR MOBILE COMMUNICATION TERMINAL AND MOBILE COMMUNICATION T...
Publication number
20120163245
Publication date
Jun 28, 2012
Hitachi Media Electronics Co., Ltd.
Masazumi Tone
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TUNABLE FILTER, TUNABLE DUPLEXER AND MOBILE COMMUNICATION TERMINAL...
Publication number
20120112853
Publication date
May 10, 2012
Osamu HIKINO
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
MODULE FOR MOBILE COMMUNICATION TERMINAL, AND MOBILE COMMUNICATION...
Publication number
20120094617
Publication date
Apr 19, 2012
Masazumi Tone
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MODULE FOR USE IN MOBILE COMMUNICATION TERMINAL AND MOBILE COMMUNIC...
Publication number
20110134810
Publication date
Jun 9, 2011
Hitachi Media Electronics Co., Ltd.
Akio Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIGNAL CIRCUIT AND INFORMATION PROCESSING APPARATUS HAVING THE SAME
Publication number
20090067103
Publication date
Mar 12, 2009
Masato Kijima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
High-frequency circuit apparatus and communication apparatus using...
Publication number
20080137560
Publication date
Jun 12, 2008
Hitachi Media Electronics Co., Ltd.
Takao Totsuka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Switch circuit, front end module and radio terminal including switc...
Publication number
20080100395
Publication date
May 1, 2008
Hitachi Media Electronics Co., Ltd.
Yuuichi Oikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
High-frequency circuit apparatus and communication apparatus using...
Publication number
20080070515
Publication date
Mar 20, 2008
Hitachi Media Electronics Co., Ltd.
Takao Totsuka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
High-frequency circuit apparatus and communication apparatus using...
Publication number
20080070514
Publication date
Mar 20, 2008
Hitachi Media Electronics Co., Ltd.
Takao Totsuka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
High-frequency circuit apparatus and communication apparatus using...
Publication number
20070183348
Publication date
Aug 9, 2007
Hitachi Media Electronics Co., Ltd.
Takao Totsuka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Transmission circuit, antenna duplexer, and radio-frequency switch...
Publication number
20060290447
Publication date
Dec 28, 2006
Osamu Hikino
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Antenna sharing device and wireless communication terminal using th...
Publication number
20060141944
Publication date
Jun 29, 2006
Hitachi, Ltd.
Nobuhiko Shibagaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE