Method for producing silver powder

    公开(公告)号:US12194541B2

    公开(公告)日:2025-01-14

    申请号:US18681169

    申请日:2022-09-09

    Inventor: Satoko Sugawara

    Abstract: A method for producing a silver powder enables a low resistance when the silver powder is made into a paste to form an electrode without changing the type of surface treatment agent. A silver powder, which enables an electrode to have a low resistance when the silver powder is made into a paste to form the electrode, is obtained by adding an O/W-type emulsion containing micelles of a surface treatment agent having a volume-based cumulative 50% particle diameter D50 obtained by a laser diffraction particle size distribution analysis of 1.5 μm or less to a slurry of a silver powder. The surface of the silver powder is coated with the surface treatment agent. The surface of the silver powder is further coated with a polyvalent carboxylic acid in a step of producing the silver powder.

    MAGNETIC COMPOSITE MATERIAL AND ROTATING ELECTRIC MACHINE

    公开(公告)号:US20250006412A1

    公开(公告)日:2025-01-02

    申请号:US18779260

    申请日:2024-07-22

    Abstract: The magnetic composite material of the embodiments includes a magnetic material having a plane at the surface; and a plurality of fibrous materials. The magnetic material includes: a plurality of magnetic bodies having a planar structure, each of the magnetic bodies having a magnetic metal phase containing at least one first element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni), and principal surfaces; and an intercalated phase containing at least one second element selected from the group consisting of oxygen (O), carbon (C), nitrogen (N), and fluorine (F). The fibrous materials are oriented to be approximately perpendicular or approximately parallel to the principal surfaces and are provided in the intercalated phase. The principal surfaces are oriented to be approximately parallel to the plane and have the difference in coercivity on the basis of direction within the plane.

Patent Agency Ranking