From: Tom Lee [bnj4318693@jlonline.com] Sent: Wednesday, January 30, 2002 10:31 PM To: pete_mclean@maxtor.com Cc: shaotongshaotong Subject: Patent violation Dear Peter, We are very surprised to have found that the command of "SET MAX ADDRESS" in ATA/ATAPI from V4 on edited by you violates our patent in China owned by our company(Patent No.94111461 and Certification No.55089). We think that all the hard disks made according to the standard and sold to China have violated our patent right and we are going to sue some hard disk manufacturer to defend our right. Anyway, we think the most important thing is to cooperate. We expect that the command will be very critical to computer security in e-business time though it needs much more improvement to realize the functions we need for our future e-security PC, which will realize the real time online transition between the internal LAN and external WAN with bulletproof physical separation at the lowest hardware layer to be the basic platform for e-business, e-economy and e-society. We are producing PC e-security cards(PC E-SC), based upon our patent, that divide one PC into two virtual ones, realizing the absolute separation between the safe and un-safe environments in a PC to meet the great demands for both information acquirement and data security from government, military defense, banking, insurance, tele-communication and enterprises. PC E-SC is necessary to the future E-Security PC and e-business end usersĄŻ security solution, for it realizes the read and write protection on hard disk by the way of hardware, guaranteeing the absolute security for the one-way data transfer from Internet to end users with lower cost and wide applications. We do hope to cooperate with you or other hard disk makers to realize our patented technology totally in hard disk drives to make our cards more secure, compatible and reliable. Look forward to your kind reply. Best regards, Tom Lee Manager Nanjing e-Security Technology Co.,Ltd. Rm.D05,Multi-Functional Bldg.,Gate 3 Nanjing University of Science and Technology #200 XiaoLingWei, XuanWu District, Nanjing, Jiangsu 210014 China Tel:86-25-4318612/4318693 Fax:86-25-4318693 Mobile:13605142337 Email: litianming@china-esc.com http://www.china-esc.com