No.1161441"Tsinghua Tongfang" is registered by Beijing Tsinghua Tongfang Industrial Corporation, and it is approved to use the ninth category of goods "computers". Computer peripherals. Computer software (recorded), optical communication equipment, telephone equipment, measuring instruments, teaching instruments, electric measuring instruments, electrical instruments, computer control equipment, alarms and sensors ". The registration period was extended from1March 2, 9981day to March 20, 2028. It was transferred to Tsinghua Tongfang Co., Ltd. on June 28, 998, and the name of the registrant was changed to Tongfang Co., Ltd. on September 27, 2007.