日本川崎钢铁公司为了开发具有独创特点的抗菌不锈钢，独自研制成功了加银的抗菌不锈钢。因为银作为抗菌剂已有大量的实用经验，但有关制造加银钢的经验还几乎没有，一般认为是不可能的。本公司独自开发成功往不锈钢中有效添加银的方法，成功地生产了加银抗菌不锈钢Ｒ４３０Ａ Japan’s Kawasaki Iron and Steel Company in order to develop unique features of antibacterial stainless steel, alone successfully developed silver plus antibacterial stainless steel. Because silver has a wealth of practical experience as an antimicrobial agent, there is almost no experience with manufacturing silver-plus-steels and it is generally considered impossible. The company alone successfully developed to effectively add silver to the stainless steel method, the successful production of silver antibacterial stainless steel R430A