发明名称
摘要 A method for automatically storing information on the date of the first use of an electronic device after purchase for verifying the warranty period of the electronic device. When an electronic device is used for the first time after purchase, the date information necessary for verifying the warranty period is automatically stored, thereby settling disputes concerning warranty periods. Also, the cost for repairing products for which the warranty period has already elapsed can be greatly reduced. <IMAGE>
申请公布号 JP3399876(B2) 申请公布日期 2003.04.21
申请号 JP19990156700 申请日期 1999.06.03
申请人 发明人
分类号 G06F1/14;G04G99/00;G07C1/00;G07C3/00;G07C3/02;G11C7/00;H04N7/08;H04N7/081;H04N17/00 主分类号 G06F1/14
代理机构 代理人
主权项
地址