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公开(公告)号：US11220726B2
公开(公告)日：2022-01-11
申请号：US17053071
申请日：2020-01-31
发明人： Masami Munakata , Kohtaro Munakata
摘要： Provided are a silver article formed using pure silver, which has high Vickers hardness and prohibits the occurrence of metal corrosion and the occurrence of discoloration; and its method. Disclosed are a silver article and its method, wherein the Vickers hardness is adjusted to 60 HV or higher, and when the height of the peak of 2θ=38°±0.2° by an XRD is designated as h1, and that of 2θ=44°±0.4° is designated as h2, h2/h1 is adjusted to 0.2 or greater.
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公开(公告)号：US11470928B2
公开(公告)日：2022-10-18
申请号：US16967413
申请日：2020-01-31
发明人： Masami Munakata , Kohtaro Munakata
IPC分类号： A44C27/00 , A44C1/00 , A44C5/00 , A44C7/00 , A44C9/00 , A44C15/00 , A44C25/00 , C22F1/14 , C22C5/06 , C21D1/09
摘要： Provided are a silver jewelry article formed using pure silver, which has high Vickers hardness and prohibit the occurrence of discoloration and its method. Disclosed are a silver jewelry article and its method, wherein the Vickers hardness is adjusted to 60 HV or higher, and when the height of the peak of 2θ=38°±0.2° by an XRD is designated as h1, and that of 2θ=44°±0.4° is designated as h2, h2/h1 is adjusted to 0.2 or greater.
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公开(公告)号：US11655522B2
公开(公告)日：2023-05-23
申请号：US17564234
申请日：2021-12-29
发明人： Masami Munakata , Kohtaro Munakata
摘要： Provided are a silver article formed using pure silver, which has high Vickers hardness and prohibits the occurrence of metal corrosion and the occurrence of discoloration; and its method. Disclosed are a silver article and its method, wherein the Vickers hardness is adjusted to 60 HV or higher, and when the height of the peak of 2θ=38°±0.2° by an XRD is designated as h1, and that of 2θ=44°±0.4° is designated as h2, h2/h1 is adjusted to 0.2 or greater.
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