Sumitomo Metal Mining had three patents in advanced materials during Q2 2024. Sumitomo Metal Mining Co Ltd filed patents in Q2 2024 for a magnetostrictive member made of an iron-based alloy crystal with specific surface roughness and thickness criteria. The member is a plate-like body with different lattice constants in the long-side and short-side directions, enhancing its magnetostrictive characteristics. GlobalData’s report on Sumitomo Metal Mining gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Sumitomo Metal Mining had no grants in advanced materials as a theme in Q2 2024.
Recent Patents
Application: Magnetostrictive member and method for manufacturing magnetostrictive member (Patent ID: US20240215455A1)
The patent filed by Sumitomo Metal Mining Co Ltd relates to a magnetostrictive member made of an iron-based alloy crystal with specific characteristics. The member is a plate-like body with front and back faces, where the surface roughness and thickness must meet specific criteria outlined in Expression (1). The claims further detail the acceptable range of surface roughness based on the thickness of the magnetostrictive member, with additional specifications for the magnetostriction amount and constant, as well as the type of iron-based alloy crystal used.
The method for manufacturing the magnetostrictive member involves processing the front and back faces to meet the requirements of Expression (1), with grinding being a preferred method. The claims specify the type of grinding, such as surface grinding with a particular range of grinding wheel numbers. Additionally, the method includes processing steps to achieve a magnetostriction constant of 250 ppm or more and a parallel magnetostriction amount of 250 ppm or more. Overall, the patent focuses on the precise manufacturing and material specifications necessary for producing a magnetostrictive member with optimal performance characteristics.
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