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Kiyoshi Ichikawa
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Yokohama, JP
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Patents Grants
last 30 patents
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Patent Grant
Wireless communication system and soft handoff control method in wi...
Patent number
8,175,606
Issue date
May 8, 2012
Hitachi, Ltd.
Kiyoshi Ichikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile terminal equipment and packet communication method between t...
Patent number
7,286,520
Issue date
Oct 23, 2007
Hitachi, Ltd.
Yukiko Takeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM AND SOFT HANDOFF CONTROL METHOD IN WI...
Publication number
20090191879
Publication date
Jul 30, 2009
Hitachi Communication Technologies, Ltd.
Kiyoshi Ichikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Mobile terminal equipment and packet communication method between t...
Publication number
20040105420
Publication date
Jun 3, 2004
Hitachi, Ltd.
Yukiko Takeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE