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公开(公告)号：US11932931B2
公开(公告)日：2024-03-19
申请号：US17706130
申请日：2022-03-28
Inventor： Pak-Man Yiu , Jhen-De You , Jinn Chu , Sung-Tsun Wang
CPC classification number: C23C14/165 , C22C38/002 , C22C38/44 , C22C38/58 , C23C14/3407 , C23C14/35
Abstract: The present invention relates to a hydrophilic metal thin film, which is formed by stacking a plurality of columnar structures. A plurality of tetrahedral structures is on the surface of the hydrophilic metal film, which is formed on the top of the columnar structures. The width of the tetrahedral structures is 15 nm to 120 nm. The hydrophilic metal thin film comprises: 35 to 95 at % of iron, 5 to 20 at % of chromium. The above-mentioned hydrophilic metal thin film is formed by magnetron sputtering method under the working pressure of argon gas ranging from 6 mTorr to 13 mTorr, and the sputtering time exceeds 20 minutes.
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公开(公告)号：US11607533B2
公开(公告)日：2023-03-21
申请号：US16868532
申请日：2020-05-06
Inventor： Jinn Chu , Wen-Che Liao , Pak-Man Yiu
Abstract: A tattoo needle structure is provided. A tattoo needle has a plurality of needle tips, an ink holding space is formed by the arrangement of the needle tips, and a multi-component alloy film is deposited on each needle tip of the tattoo needle by sputtering technology, so that when the tattoo needle is dipped into the tattoo ink, the tattoo ink does not stick to the surface of the multi-component alloy film by the hydrophobic property of the multi-component alloy film, and the tattoo ink is contained in the ink holding space by the cohesive property of the tattoo ink. Thus, when the tattoo needle is dipped into the tattoo ink and the tattoo process is performed, the dyeing area of the skin with the tattoo ink is the cross-sectional area of the ink holding space, thereby achieving the technical effect of improving the contouring resolution of a tattoo.
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