Patents by Inventor Guangli Hu
Guangli Hu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20230040422Abstract: One or more aspects of the disclosure pertain to an article including a film disposed on a glass substrate, which may be strengthened, where the interface between the film and the glass substrate is modified, such that the article has an improved average flexural strength, and the film retains key functional properties for its application. Some key functional properties of the film include optical, electrical and/or mechanical properties. The bridging of a crack from one of the film or the glass substrate into the other of the film or the glass substrate can be suppressed by inserting a nanoporous crack mitigating layer between the glass substrate and the film.Type: ApplicationFiled: September 21, 2022Publication date: February 9, 2023Inventors: Heather Bossard Decker, Shandon Dee Hart, Guangli Hu, James Joseph Price, Paul Arthur Sachenik
-
Publication number: 20230015444Abstract: A glass-based article may include from about 45 mol. % to about 80 mol. % SiO2; from about 0 mol. % to about 10 mol. % Na2O; less than about 5 mol. % K2O; a non-zero amount of Al2O; and. an amorphous phase and a crystalline phase. The article may further in include a stress profile comprising a surface compressive stress (CS) and a maximum central tension (CT). A ratio of Li2O (mol. %) to R2O (mol. %) in the article is from about 0.5 to about 1, where R2O is the sum of Li2O, Na2O, and K2O in the article. CT may be greater than or equal to about 50 MPa and less than about 100 MPa. CS may be greater than 2.0·CT. A depth of compression (DOC) of the stress profile may be greater than or equal to 0.14·t and less than or equal to 0.25·t, where t is the thickness of the article.Type: ApplicationFiled: August 30, 2022Publication date: January 19, 2023Applicant: CORNING INCORPORATEDInventors: Guangli Hu, Charlene Marie Smith, Zhongzhi Tang, Steven Alvin Tietje
-
Publication number: 20220339906Abstract: A glass article includes a glass core layer and a glass cladding layer adjacent to the core layer. A coefficient of thermal expansion (CTE) of the core layer is greater than a CTE of the cladding layer. The core layer has a tensile stress, and the cladding layer has a compressive stress. A retained strength of the glass article is a strength determined after abrasion of an outer surface of the glass article with 1 mL of 90 grit SiC particles for 5 seconds at an abrasion pressure, and a ratio of the retained strength at an abrasion pressure of 25 psi to the retained strength at an abrasion pressure of 5 psi is at least about 0.3.Type: ApplicationFiled: July 8, 2022Publication date: October 27, 2022Inventors: Thomas Michael Cleary, Guangli Hu, John Christopher Mauro, Douglas Miles Noni, JR., Natesan Venkataraman
-
Patent number: 11479501Abstract: One or more aspects of the disclosure pertain to an article including a film disposed on a glass substrate, which may be strengthened, where the interface between the film and the glass substrate is modified, such that the article has an improved average flexural strength, and the film retains key functional properties for its application. Some key functional properties of the film include optical, electrical and/or mechanical properties. The bridging of a crack from one of the film or the glass substrate into the other of the film or the glass substrate can be suppressed by inserting a nanoporous crack mitigating layer between the glass substrate and the film.Type: GrantFiled: September 30, 2020Date of Patent: October 25, 2022Assignee: Corning IncorporatedInventors: Heather Bossard Decker, Shandon Dee Hart, Guangli Hu, James Joseph Price, Paul Arthur Sachenik
-
Patent number: 11472734Abstract: A glass-based article including a first surface and a second surface opposing the first surface defining a thickness (t) of about 3 millimeters or less (e.g., about 1 millimeter or less), and a stress profile, wherein all points of the stress profile between a thickness range from about 0·t up to 0.3·t and from greater than about 0.7·t to t, comprise a tangent with a slope having an absolute value greater than about 0.1 MPa/micrometer. In some embodiments, the glass-based article includes a non-zero metal oxide concentration that varies along at least a portion of the thickness (e.g., 0·t to about 0.3·t) and a maximum central tension of less than about 71.5/?(t) (MPa). In some embodiments, the concentration of metal oxide or alkali metal oxide decreases from the first surface to a point between the first surface and the second surface and increases from the point to the second surface. The concentration of the metal oxide may be about 0.05 mol % or greater or about 0.Type: GrantFiled: September 28, 2020Date of Patent: October 18, 2022Assignee: Corning IncorporatedInventors: Timothy Michael Gross, Guangli Hu, Rostislav Vatchev Roussev, Charlene Marie Smith, Zhongzhi Tang, Steven Alvin Tietje
-
Publication number: 20220324202Abstract: A glass element having a thickness from 25 ?m to 125 ?m, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress GI of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that it does not fail when it is subject to 200,000 cycles of bending to a target bend radius of from 1 mm to 20 mm, by the parallel plate method. Still further, the glass element has a puncture resistance of greater than about 1.5 kgf when the first primary surface of the glass element is loaded with a tungsten carbide ball having a diameter of 1.5 mm.Type: ApplicationFiled: June 13, 2022Publication date: October 13, 2022Inventors: Theresa Chang, Polly Wanda Chu, Patrick Joseph Cimo, Adam James Ellison, Timothy Michael Gross, Guangli Hu, Nicholas James Smith, Butchi Reddy Vaddi, Natesan Venkataraman
-
Patent number: 11465937Abstract: A glass-based article may include from about 45 mol. % to about 80 mol. % SiO2; from about 0 mol. % to about 10 mol. % Na2O; less than about 5 mol. % K2O; a non-zero amount of Al2O; and an amorphous phase and a crystalline phase. The article may further in include a stress profile comprising a surface compressive stress (CS) and a maximum central tension (CT). A ratio of Li2O (mol. %) to R2O (mol. %) in the article is from about 0.5 to about 1, where R2O is the sum of Li2O, Na2O, and K2O in the article. CT may be greater than or equal to about 50 MPa and less than about 100 MPa. CS may be greater than 2.0·CT. A depth of compression (DOC) of the stress profile may be greater than or equal to 0.14·t and less than or equal to 0.25·t, where t is the thickness of the article.Type: GrantFiled: January 13, 2021Date of Patent: October 11, 2022Assignee: Corning IncorporatedInventors: Guangli Hu, Charlene Marie Smith, Zhongzhi Tang, Steven Alvin Tietje
-
Patent number: 11459270Abstract: Embodiments of a glass-based article including a first surface and a second surface opposing the first surface defining a thickness (t) of about 3 millimeters or less (e.g., about 1 millimeter or less), and a stress profile, wherein all points of the stress profile between a thickness range from about 0·t up to 0.3·t and from greater than 0.7·t, comprise a tangent that is less than about ?0.1 MPa/micrometers or greater than about 0.1 MPa/micrometers, are disclosed. In some embodiments, the glass-based article includes a non-zero metal oxide concentration that varies along at least a portion of the thickness (e.g., 0·t to about 0.3·t). In some embodiments, the concentration of metal oxide or alkali metal oxide decreases from the first surface to a point between the first surface and the second surface and increases from the point to the second surface. The concentration of the metal oxide may be about 0.05 mol % or greater or about 0.5 mol % or greater throughout the thickness.Type: GrantFiled: March 31, 2020Date of Patent: October 4, 2022Assignee: Corning IncorporatedInventors: Guangli Hu, Charlene Marie Smith, Zhongzhi Tang, Steven Alvin Tietje
-
Patent number: 11440837Abstract: One or more aspects of the disclosure pertain to an article including a film disposed on a glass substrate, which may be strengthened, where the interface between the film and the glass substrate is modified, such that the article retains its average flexural strength, and the film retains key functional properties for its application. Some key functional properties of the film include optical, electrical and/or mechanical properties. The bridging of a crack from one of the film or the glass substrate into the other of the film or the glass substrate can be prevented by inserting a crack mitigating layer between the glass substrate and the film.Type: GrantFiled: March 12, 2021Date of Patent: September 13, 2022Assignee: Corning IncorporatedInventors: Heather Bossard Decker, Shandon Dee Hart, Guangli Hu, Fei Li, James Joseph Price, Chandan Kumar Saha
-
Patent number: 11434166Abstract: One or more aspects of the disclosure pertain to an article including a film disposed on a glass substrate, which may be strengthened, where the interface between the film and the glass substrate is modified, such that the article has an improved average flexural strength, and the film retains key functional properties for its application. Some key functional properties of the film include optical, electrical and/or mechanical properties. The bridging of a crack from one of the film or the glass substrate into the other of the film or the glass substrate can be suppressed by inserting a nanoporous crack mitigating layer between the glass substrate and the film.Type: GrantFiled: March 18, 2021Date of Patent: September 6, 2022Assignee: Corning IncorporatedInventors: Heather Bossard Decker, Shandon Dee Hart, Guangli Hu, James Joseph Price, Paul Arthur Sachenik
-
Patent number: 11413848Abstract: A glass article includes a glass core layer and a glass cladding layer adjacent to the core layer. A coefficient of thermal expansion (CTE) of the core layer is greater than a CTE of the cladding layer. The core layer has a tensile stress, and the cladding layer has a compressive stress. A retained strength of the glass article is a strength determined after abrasion of an outer surface of the glass article with 1 mL of 90 grit SiC particles for 5 seconds at an abrasion pressure, and a ratio of the retained strength at an abrasion pressure of 25 psi to the retained strength at an abrasion pressure of 5 psi is at least about 0.3.Type: GrantFiled: March 25, 2015Date of Patent: August 16, 2022Assignee: Corning IncorporatedInventors: Thomas Michael Cleary, Guangli Hu, John Christopher Mauro, Douglas Miles Noni, Jr., Natesan Venkataraman
-
Publication number: 20220242781Abstract: Disclosed herein are coated articles which may include a substrate and an optical coating that includes one or more layers of deposited material. At least a portion of the optical coating may include a residual compressive stress of more than 100 MPa. The coated article may include a strain-to-failure of 0.4% or more as measured by a Ring-on-Ring Tensile Testing Procedure. The optical coating may include a maximum hardness of 8 GPa or more and an average photopic transmission of 50% or greater.Type: ApplicationFiled: November 22, 2021Publication date: August 4, 2022Inventors: Shandon Dee Hart, Guangli Hu, Charles Andrew Paulson, James Joseph Price
-
Publication number: 20220212985Abstract: Embodiments of a glass-based article including a first surface and a second surface opposing the first surface defining a thickness (t) of about 3 millimeters or less (e.g., about 1 millimeter or less), and a stress profile, wherein all points of the stress profile between a thickness range from about 0·t up to 0.3·t and from greater than about 0.7·t up to t, comprise a tangent with a slope having an absolute value greater than about 0.1 MPa/micrometer, are disclosed. In some embodiments, the glass-based article includes a non-zero metal oxide concentration that varies along at least a portion of the thickness (e.g., 0·t to about 0.3·t) and a maximum central tension in the range from about 80 MPa to about 100 MPa. In some embodiments, the concentration of metal oxide or alkali metal oxide decreases from the first surface to a value at a point between the first surface and the second surface and increases from the value to the second surface. The concentration of the metal oxide may be about 0.Type: ApplicationFiled: March 16, 2022Publication date: July 7, 2022Inventors: Matthew John Dejneka, Sinue Gomez-Mower, Guangli Hu, Charlene Marie Smith, Zhongzhi Tang, Steven Alvin Tietje
-
Patent number: 11358372Abstract: A glass element having a thickness from 25 ?m to 125 ?m, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress GI of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that it does not fail when it is subject to 200,000 cycles of bending to a target bend radius of from 1 mm to 20 mm, by the parallel plate method. Still further, the glass element has a puncture resistance of greater than about 1.5 kgf when the first primary surface of the glass element is loaded with a tungsten carbide ball having a diameter of 1.5 mm.Type: GrantFiled: October 5, 2020Date of Patent: June 14, 2022Assignee: Corning IncorporatedInventors: Theresa Chang, Polly Wanda Chu, Patrick Joseph Cimo, Adam James Ellison, Timothy Michael Gross, Guangli Hu, Nicholas James Smith, Butchi Reddy Vaddi, Natesan Venkataraman
-
Patent number: 11279652Abstract: Embodiments of a glass-based article including a first surface and a second surface opposing the first surface defining a thickness (t) of about 3 millimeters or less (e.g., about 1 millimeter or less), and a stress profile, wherein all points of the stress profile between a thickness range from about 0·t up to 0.3·t and from greater than about 0.7·t up to t, comprise a tangent with a slope having an absolute value greater than about 0.1 MPa/micrometer, are disclosed. In some embodiments, the glass-based article includes a non-zero metal oxide concentration that varies along at least a portion of the thickness (e.g., 0·t to about 0.3·t) and a maximum central tension in the range from about 80 MPa to about 100 MPa. In some embodiments, the concentration of metal oxide or alkali metal oxide decreases from the first surface to a value at a point between the first surface and the second surface and increases from the value to the second surface. The concentration of the metal oxide may be about 0.Type: GrantFiled: February 21, 2020Date of Patent: March 22, 2022Assignee: Corning IncorporatedInventors: Matthew John Dejneka, Sinue Gomez, Guangli Hu, Charlene Marie Smith, Zhongzhi Tang, Steven Alvin Tietje
-
Patent number: 11242280Abstract: A coated article includes a substrate having a major surface, and an optical coating disposed on the major surface of the substrate. At least a portion of the optical coating includes a residual compressive stress of about 50 MPa or more. The coated article has strain-to-failure of about 0.5% or more as measured by a Ring-on-Ring Tensile Testing Procedure. The coated article has an average photopic transmission of about 80% or greater.Type: GrantFiled: December 19, 2017Date of Patent: February 8, 2022Assignee: Corning IncorporatedInventors: Shandon Dee Hart, Guangli Hu, Charles Andrew Paulson, James Joseph Price
-
Patent number: 11220456Abstract: A glass-based article may include from about 45 mol. % to about 80 mol. % SiO2; from about 0 mol. % to about 10 mol. % Na2O; less than about 5 mol. % K2O; a non-zero amount of Al2O; and an amorphous phase and a crystalline phase. The article may further in include a stress profile comprising a surface compressive stress (CS) and a maximum central tension (CT). A ratio of Li2O (mol. %) to R2O (mol. %) in the article is from about 0.5 to about 1, where R2O is the sum of Li2O, Na2O, and K2O in the article. CT may be greater than or equal to about 50 MPa and less than about 100 MPa. CS may be greater than 2.0·CT. A depth of compression (DOC) of the stress profile may be greater than or equal to 0.14·t and less than or equal to 0.25·t, where t is the thickness of the article.Type: GrantFiled: September 17, 2020Date of Patent: January 11, 2022Assignee: Corning IncorporatedInventors: Guangli Hu, Charlene Marie Smith, Zhongzhi Tang, Steven Alvin Tietje
-
Patent number: 11174197Abstract: A glass-based article includes an amorphous phase and a crystalline phase, and a first surface and a second surface opposing the first surface thereby defining a thickness (t) of the glass-based article. The glass-based article has a stress profile with a surface compressive stress (CS) and a maximum central tension (CT). The maximum CT is greater than or equal to 80 MPa and less than or equal to 95 MPa, and the maximum CT is positioned within the glass-based article at a range from greater than or equal to 0.4·t and less than or equal to 0.6·t. The surface CS of the glass-based article is greater than or equal to 200 MPa; and a depth of compression (DOC) is from greater than or equal to 0.14·t and less than or equal to 0.25·t.Type: GrantFiled: September 18, 2020Date of Patent: November 16, 2021Assignee: Corning IncorporatedInventors: Matthew John Dejneka, Sinue Gomez, Guangli Hu, Charlene Marie Smith, Zhongzhi Tang, Steven Alvin Tietje
-
Patent number: 11167528Abstract: A glass laminate includes a glass core layer having a core coefficient of thermal expansion (CTE) and a glass cladding layer adjacent to the core layer and having a cladding CTE that is less than the core CTE such that the core layer is in tension and the cladding layer is in compression. A stress profile of the glass laminate includes a compressive peak disposed between an outer surface of the cladding layer and an inner surface of the cladding layer.Type: GrantFiled: October 12, 2016Date of Patent: November 9, 2021Assignee: CORNING INCORPORATEDInventors: Jason Thomas Harris, Guangli Hu, John Christopher Mauro
-
Publication number: 20210300819Abstract: A method for generating various stress profiles for chemically strengthened glass. An alkali aluminosilicate glass is brought into contact with an ion exchange media such as, for example, a molten salt bath containing an alkali metal cation that is larger than an alkali metal cation in the glass. The ion exchange is carried out at temperatures greater than about 420° C. and at least about 30° C. below the anneal point of the glass.Type: ApplicationFiled: June 11, 2021Publication date: September 30, 2021Inventors: Douglas Clippinger Allan, Xiaoju Guo, Guangli Hu, Gaozhu Peng