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Yasuyuki Tsutsumi
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Hitachi, JP
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last 30 patents
Information
Patent Grant
Fuel cell using liquid electrolyte
Patent number
4,808,492
Issue date
Feb 28, 1989
Hitachi Ltd.
Norihira Uozumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Fuel cell using organic, high-molecular weight electrolyte
Patent number
4,537,840
Issue date
Aug 27, 1985
Hitachi, Ltd.
Tsutomu Tsukui
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Differential-pressure control device for a fuel cell
Patent number
4,528,251
Issue date
Jul 9, 1985
Hitachi, Ltd.
Masanori Yamaguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Fuel cell
Patent number
4,407,904
Issue date
Oct 4, 1983
Hitachi, Ltd.
Norihira Uozumi
H01 - BASIC ELECTRIC ELEMENTS