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Masatoshi Sawamura
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Saitama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Clamshell portable wireless terminal with an upper housing and a lo...
Patent number
7,266,399
Issue date
Sep 4, 2007
Sony Erisson Mobile Communication Japan, Inc.
Masatoshi Sawamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Built-in antenna of a portable wireless terminal for communication...
Patent number
7,082,324
Issue date
Jul 25, 2006
Sony Ericsson Mobile Communications Japan, Inc.
Masatoshi Sawamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Wireless communication device with two internal antennas
Patent number
7,069,043
Issue date
Jun 27, 2006
Sony Corporation
Masatoshi Sawamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Antenna device and portable radio communication terminal
Patent number
7,053,848
Issue date
May 30, 2006
Sony Ericsson Mobile Communications Japan, Inc.
Hideaki Shoji
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Dual band built-in antenna device and mobile wireless terminal equi...
Patent number
6,535,170
Issue date
Mar 18, 2003
Sony Corporation
Masatoshi Sawamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Antenna device and portable radio set
Patent number
6,366,247
Issue date
Apr 2, 2002
Sony Corporation
Masatoshi Sawamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Antenna apparatus and portable radio set
Patent number
6,362,792
Issue date
Mar 26, 2002
Sony Corporation
Masatoshi Sawamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Antenna device and portable radio set
Patent number
6,362,793
Issue date
Mar 26, 2002
Sony Corporation
Masatoshi Sawamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Antenna apparatus and portable radio communication apparatus
Patent number
6,295,030
Issue date
Sep 25, 2001
Sony Corporation
Osamu Kozakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Antenna device
Patent number
6,229,485
Issue date
May 8, 2001
Sony Corporation
Hiroki Ito
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Portable wireless terminal
Publication number
20060217164
Publication date
Sep 28, 2006
Masatoshi Sawamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Portable wireless terminal
Publication number
20050176475
Publication date
Aug 11, 2005
Masatoshi Sawamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Antenna device and portable radio communication terminal
Publication number
20040239575
Publication date
Dec 2, 2004
Hideaki Shoji
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Mobile wireless terminal
Publication number
20030148784
Publication date
Aug 7, 2003
Masatoshi Sawamura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Dual band built-in antenna device and mobile wireless terminal equi...
Publication number
20020093456
Publication date
Jul 18, 2002
Masatoshi Sawamura
H01 - BASIC ELECTRIC ELEMENTS