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Hitachinaka, JP
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last 30 patents
Information
Patent Grant
Semiconductor device
Patent number
5,793,106
Issue date
Aug 11, 1998
Hitachi, Ltd.
Akio Yasukawa
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Cooling system of electric automobile and electric motor used therefor
Patent number
5,678,760
Issue date
Oct 21, 1997
Hitachi, Ltd.
Masanori Muso
B60 - VEHICLES IN GENERAL
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Patent Grant
Cooling system for electric vehicle inverter system
Patent number
5,631,821
Issue date
May 20, 1997
Hitachi, Ltd.
Masanori Muso
B60 - VEHICLES IN GENERAL