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UACJ holds a patent (Japan Patent Number: 7474395) related to the content of this article. The patent pertains to a sheet consisting of a resin film and a copper film that contains both copper oxide and nonoxidized copper, with specific proportions to enhance transparency, which is relevant to the present study. The authors have no other competing interests to declare.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"502"}}