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Sumiyuki Midorikawa
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Hitachi, JP
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last 30 patents
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Patent Grant
Process for producing solar cells
Patent number
4,643,913
Issue date
Feb 17, 1987
Hitachi, Ltd.
Masaaki Okunaka
C07 - ORGANIC CHEMISTRY
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Patent Grant
Electrode material for semi-conductor devices
Patent number
4,486,232
Issue date
Dec 4, 1984
Hitachi, Ltd.
Mitsuo Nakatani
H01 - BASIC ELECTRIC ELEMENTS