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同和矿业公司研制出的化合物半导体砷化镓制品“光应用接触控电盘”(商品名为 DO—touch),从四月份起以每月4000～5000台的规模进行生产。过去研制出的有感压式接触控电盘等产品,其对位置的判断能力,超过了10个慧形象差范围。与此相比,同和矿业公司生产的光应用接触控电盘的分析能力,优于过去的制品,并经久耐用。洽购同和矿业公司接触控电盘的单位有日本电信电话公司,NHK(日本广播公司),日本专卖公司
The compound semiconductor gallium arsenide product “Light Contact Control Panel” (trade name DO-touch) developed by Tonghe Mining Co., Ltd. has been produced on a monthly basis from the 4,000 to 5,000 units starting from April. In the past, pressure sensitive contact control panels and other products have been developed. Their ability to determine position has exceeded the range of 10 coma aberrations. In comparison, the analysis capability of the contactless control panel produced by Tonghe Mining Company is superior to the previous products and is durable. The units that negotiated access to the control panel of Tongwa Mining Co., Ltd. are Nippon Telegraph and Telephone Corporation, NHK (Japan Broadcasting Corporation), Japan Monopoly Corporation.