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Yuji Ishida
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Machida, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Digital predistortion transmitter
Patent number
7,995,674
Issue date
Aug 9, 2011
Hitachi, Ltd.
Kazuyuki Hori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital predistortion transmitter
Patent number
7,864,881
Issue date
Jan 4, 2011
Hitachi, Ltd.
Kazuyuki Hori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
OFDM modulator
Patent number
7,809,078
Issue date
Oct 5, 2010
Hitachi, Ltd.
Kazuyuki Hori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Antenna unit and radio base station therewith
Patent number
7,587,174
Issue date
Sep 8, 2009
Hitachi, Ltd.
Mikio Kuwahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time-interleaved AD converter
Patent number
7,352,316
Issue date
Apr 1, 2008
Hitachi Communication Technologies, Ltd.
Kazuyuki Hori
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Antenna unit and radio base station therewith
Patent number
7,203,462
Issue date
Apr 10, 2007
Mikio Kuwahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Antenna unit and radio base station therewith
Patent number
6,647,276
Issue date
Nov 11, 2003
Hitachi, Ltd.
Mikio Kuwahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
PLL frequency synthesizer
Patent number
6,091,305
Issue date
Jul 18, 2000
Hitachi, Ltd.
Yoshinori Nagoya
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
High-speed phase-locked loop circuit
Patent number
5,977,838
Issue date
Nov 2, 1999
Hitachi Ltd.
Yoshinori Nagoya
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
PLL frequency synthesizer
Patent number
5,963,099
Issue date
Oct 5, 1999
Hitachi, Ltd.
Yoshinori Nagoya
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Output-controlled power amplifier, radio communication terminal and...
Patent number
5,854,971
Issue date
Dec 29, 1998
Hitachi, Ltd.
Yoshinori Nagoya
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
Digital predistortion transmitter
Publication number
20110096865
Publication date
Apr 28, 2011
Hitachi Communication Technologies, Ltd.
Kazuyuki Hori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless Terminal, Base Station and Channel Characteristic Estimati...
Publication number
20100046359
Publication date
Feb 25, 2010
Dan Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OFDM MODULATOR
Publication number
20080219372
Publication date
Sep 11, 2008
Kazuyuki Hori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Antenna unit and radio base station therewith
Publication number
20070293269
Publication date
Dec 20, 2007
Mikio Kuwahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Digital predistortion transmitter
Publication number
20070237260
Publication date
Oct 11, 2007
Hitachi Communication Technologies, Ltd.
Kazuyuki Hori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Time-interleaved AD converter
Publication number
20070120724
Publication date
May 31, 2007
Hitachi Communication Technologies, Ltd.
Kazuyuki Hori
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Antenna unit and radio base station therewith
Publication number
20040063469
Publication date
Apr 1, 2004
Hitachi, Ltd.
Mikio Kuwahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE