According to GlobalData’s company profile on Sumitomo Metal Mining, Extraction by leaching was a key innovation area identified from patents. Sumitomo Metal Mining‘s grant share as of June 2024 was 42%. Grant share is based on the ratio of number of grants to total number of patents.
The granted patent US12024466B2 introduces a thick film resistor paste that includes an organic vehicle and a conductive substance-containing glass powder. This glass powder is characterized by its composition, which includes ruthenium oxide and lead ruthenate, with the conductive substances making up between 10% and 70% by mass. The glass composition of the conductive substance-containing glass powder must contain at least 3% and no more than 60% silicon oxide, 30% to 90% lead oxide, and 5% to 50% boron oxide, all relative to the total mass of the glass components. Additionally, the combined mass percentage of silicon oxide, lead oxide, and boron oxide must be at least 50% of the glass components.
Further specifications of the thick film resistor paste include a requirement that the average particle diameter of the conductive substance-containing glass powder is 5 micrometers or less. The patent also covers a thick film resistor that is formed from a sintered body of this paste, as well as an electronic component that incorporates the thick film resistor. This innovation aims to enhance the performance and reliability of electronic components utilizing thick film resistors.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
