Corning has developed a transparent glass-based material with a second phase dispersed within, offering high transmittance and fracture toughness. The method involves ceramming a glass to create a glass-ceramic material with specific properties, suitable for various applications requiring durability and optical clarity. GlobalData’s report on Corning gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Corning, Ceramic membrane fuel cells was a key innovation area identified from patents. Corning's grant share as of February 2024 was 55%. Grant share is based on the ratio of number of grants to total number of patents.
Transparent glass-ceramic material with high transmittance and fracture toughness
A recently granted patent (Publication Number: US11919801B2) discloses a method for producing a glass-ceramic material with specific characteristics. The method involves ceramming a glass to create a glass phase and ceramic phase dispersed within it, resulting in a glass-ceramic material with high transmittance over a visible spectrum, specific ceramic and glass phase compositions, and a fracture toughness of at least 0.9 MPa·m1/2. The ceramic phase includes materials like mullite, spinel, and ß-quartz, while the glass phase comprises soda lime glass, alkali aluminosilicate glass, or lithium alumina silicate glass. The material also exhibits specific properties such as scratch resistance, transparency, and retained strength after abrasion.
Furthermore, the patent details the use of this glass-ceramic material in consumer electronic products as a cover plate or housing due to its unique properties. The method also includes chemically strengthening the glass-ceramic through ion exchange and ensuring a specific thickness and volume fraction of the ceramic phase within the material. The patent emphasizes the importance of maintaining a certain difference in refractive index between the glass and ceramic phases, as well as controlling the size of ceramic phase particles to achieve the desired characteristics. Overall, the patent provides a comprehensive guide for producing a specialized glass-ceramic material suitable for various applications, particularly in the consumer electronics industry.
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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.
