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Kiyoshi Konno
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Hyogo, JP
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last 30 patents
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Patent Grant
Thermal printing head
Patent number
4,907,015
Issue date
Mar 6, 1990
Hitachi, Ltd.
Toshiki Kaneko
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Patent Grant
Information recording medium
Patent number
4,651,172
Issue date
Mar 17, 1987
Hitachi, Ltd.
Ryuji Watanabe
G11 - INFORMATION STORAGE
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Patent Grant
Fuel cell electrode, process for producing the same and fuel cell u...
Patent number
4,614,692
Issue date
Sep 30, 1986
Hitachi, Ltd.
Hiroshi Kajiyama
H01 - BASIC ELECTRIC ELEMENTS