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Keiko Nakashige
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Hitachi, JP
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Patents Grants
last 30 patents
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Patent Grant
Security system and method of security service business
Patent number
7,091,870
Issue date
Aug 15, 2006
Hitachi, Ltd.
Hirofumi Tsutsumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Hazardous material detection system
Patent number
6,940,067
Issue date
Sep 6, 2005
Hitachi, Ltd.
Keiko Nakashige
G01 - MEASURING TESTING
Information
Patent Grant
Hazardous material detection system
Patent number
6,806,450
Issue date
Oct 19, 2004
Hitachi, Ltd.
Keiko Nakashige
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
Hazardous material detection system
Publication number
20040245449
Publication date
Dec 9, 2004
Hitachi, Ltd.
Keiko Nakashige
G01 - MEASURING TESTING
Information
Patent Application
Hazardous material detection system
Publication number
20030234357
Publication date
Dec 25, 2003
Keiko Nakashige
G01 - MEASURING TESTING
Information
Patent Application
Apparatus for inspecting the inside of a container and method of in...
Publication number
20030136902
Publication date
Jul 24, 2003
Hitachi, Ltd.
Keiko Nakashige
G01 - MEASURING TESTING
Information
Patent Application
Security system and method of security service business
Publication number
20030009661
Publication date
Jan 9, 2003
Hirofumi Tsutsumi
H01 - BASIC ELECTRIC ELEMENTS