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Saitama, JP
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Patents Grants
last 30 patents
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
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
Method and apparatus for adaptive modulation using space-time block...
Patent number
7,136,427
Issue date
Nov 14, 2006
KDDI Corporation
Sumaru Niida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of controlling directional antenna and apparatus of the same
Patent number
6,836,674
Issue date
Dec 28, 2004
Hitachi, Ltd.
Tsuyoshi Taniguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Base station apparatus, mobile communication system, and method of...
Patent number
6,834,197
Issue date
Dec 21, 2004
Hitachi, Ltd.
Naruhito Nakahara
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
Mobile communications system and radio base station apparatus
Patent number
6,615,030
Issue date
Sep 2, 2003
Hitachi, Ltd.
Joichi Saito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal synthesis method and apparatus under diversity reception
Patent number
6,118,806
Issue date
Sep 12, 2000
KDD Corporation
Sumaru Niida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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
Antenna unit and radio base station therewith
Publication number
20040063469
Publication date
Apr 1, 2004
Hitachi, Ltd.
Mikio Kuwahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and apparatus for adaptive modulation using space-time block...
Publication number
20030161412
Publication date
Aug 28, 2003
KDDI CORPORATION
Sumaru Niida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method of controlling directional antenna and apparatus of the same
Publication number
20020034967
Publication date
Mar 21, 2002
Tsuyoshi Taniguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Base station apparatus, mobile communication system, and method of...
Publication number
20010019961
Publication date
Sep 6, 2001
Naruhito Nakahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE