CHARGING FEE BILLING METHOD, CHARGING FEE BILLING SYSTEM, CHARGING STAND DEVICE, AUTOMOBILE-MOUNTED CHARGING DEVICE
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United States of America Patent
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N/A
Issued Date -
May 31, 2012
app pub date -
Mar 16, 2011
filing date -
Mar 19, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a charging fee billing system according to the invention, a preferential card having preferential information stored thereon is issued, the preferential information allowing for an investor having borne costs required for power storage facilities for use in a commercial power system to receive a discount for electricity fees involved in the charging of an electric automobile. When charging is performed for an electric automobile that is equipped with a preferential card, a charging unit set up at a charging stand acquires preferential information from the preferential card. The charging unit bills a charging fee to which a preferential rate has been applied based on the preferential information acquired from the preferential card.
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