Sumitomo Metal Mining had nine patents in advanced materials during Q4 2023. Sumitomo Metal Mining Co Ltd filed a patent for near-infrared absorbing particles containing cesium tungstate with a crystal structure modulated to orthorhombic, rhombohedral, or cubic. The cesium tungstate is represented by the formula CsxWyOz and falls within specific composition boundaries on a ternary diagram with Cs, W, and O. GlobalData’s report on Sumitomo Metal Mining gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Sumitomo Metal Mining grant share with advanced materials as a theme is 44% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Near-infrared absorbing particles, method for producing near-infrared absorbing particles, near-infrared absorbing particle dispersion body, near-infrared absorbing laminate, and near-infrared absorbing transparent base material (Patent ID: US20230382759A1)
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The patent filed by Sumitomo Metal Mining Co Ltd. pertains to near-infrared absorbing particles containing cesium tungstate with a crystal structure modulated to orthorhombic, rhombohedral, or cubic forms. The cesium tungstate is represented by the formula CsxWyOz and falls within specific composition boundaries on a ternary composition diagram. The particles may include additive components like O, OH, OH2, or OH3, and can have deficient elements like Cs or W. The method for producing these particles involves heating a compound raw material containing Cs and W in specific conditions.
Furthermore, the patent covers the creation of near-infrared absorbing particle dispersion bodies by combining the particles with a solid medium, typically a resin. The dispersion body can be in the form of a sheet, board, or film, and must meet specific criteria for solar transmittance and color index. Additionally, the patent extends to near-infrared absorbing laminates and transparent base materials incorporating the near-infrared absorbing particle dispersion body. The transparent base material includes a near-infrared absorbing layer on at least one side, utilizing the patented particles for their near-infrared absorption properties.
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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.
