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Atsuhiko Urushibara
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Tokyo, JP
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last 30 patents
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Patent Grant
Telephone used for electronic money card transaction and method of...
Patent number
6,339,638
Issue date
Jan 15, 2002
Hitachi, Ltd.
Masayuki Ohki
G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
Card holder-type balance reader
Patent number
6,016,954
Issue date
Jan 25, 2000
Hitachi, Ltd.
Yuhei Abe
G06 - COMPUTING CALCULATING COUNTING