大阪瓦斯公司与其子公司关西新技术研究所共同开发成功采用碳纤维的电波吸收体。过去曾尝试通过碳纤维增强混凝土制的帘墙来防止电波的传导,但在重量和电波衰减率两方面并不能满足要求。该两公司通过将长短两种碳纤维组合起来的方法,制成100毫米以下厚度的帘墙,从而可成功地吸收电波。因为它作为高层建筑防止电波障害 Osaka Gas & Co., Ltd. and its subsidiary Kansai New Technology Research Institute jointly developed a carbon fiber electromagnetic absorber. In the past, attempts have been made to prevent the transmission of radio waves through carbon fiber-reinforced concrete curtain walls. However, both the weight and the attenuation rate of radio waves cannot satisfy the requirements. The two companies made a curtain wall with a thickness of 100 mm or less by combining two types of carbon fibers, which can successfully absorb radio waves. Because it acts as a high-rise building to prevent electric wave obstacles