US Patent 11559913 Razor blade and manufacturing method thereof
Patent 11559913 was granted and assigned to Dorco on January, 2023 by the United States Patent and Trademark Office.
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Patent Inventor Names
Min Joo Park0
Seong Won Jeong0
Sung Hoon Oh0
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US Patent 11559913 Razor blade and manufacturing method thereof
Article
The present disclosure provides an improvement to razor blade coating by a physical vapor deposition method, by forming a hard coating layer as a thin coating layer in which chromium boride, which is a nanocrystalline structure having high hardness, is dispersed in an amorphous mixture of chromium and boron, thereby improving the strength and hardness of the thin coating layer and securing the bonding force by chromium in the amorphous mixture between the hard coating layer and a blade substrate on which an edge of the razor blade is formed.
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Is a
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
115599130
Date of Patent
January 24, 2023
0Patent Application Number
168809010
Date Filed
May 21, 2020
0Patent Citations
Patent Primary Examiner
CPC Code
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