Patents by Inventor Atsuki SAITO
Atsuki SAITO 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).
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Publication number: 20230365453Abstract: A glass sheet of the present invention has a content of Li2O+Na2O+K2O of from 0 mol % to less than 1.0 mol % and a content of B2O3 of from 0 mol % to less than 2.0 mol % in a glass composition, has a ?-OH value of less than 0.20/mm, and has a thermal shrinkage ratio of 20 ppm or less when increased in temperature from normal temperature at a rate of 5° C./min, kept at a temperature of 500° C. for 1 hour, and decreased in temperature at a rate of 5° C./min.Type: ApplicationFiled: July 27, 2023Publication date: November 16, 2023Inventor: Atsuki SAITO
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Patent number: 11753329Abstract: A glass sheet of the present invention has a content of Li2O+Na2O+K2O of from 0 mol % to less than 1.0 mol % and a content of B2O3 of from 0 mol % to less than 2.0 mol % in a glass composition, has a ?-OH value of less than 0.20/mm, and has a thermal shrinkage ratio of 20 ppm or less when increased in temperature from normal temperature at a rate of 5° C./min, kept at a temperature of 500° C. for 1 hour, and decreased in temperature at a rate of 5° C./min.Type: GrantFiled: March 12, 2018Date of Patent: September 12, 2023Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventor: Atsuki Saito
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Publication number: 20230146789Abstract: An alkali-free glass of the present invention includes as a glass composition, in terms of mass %, 55% to 70% of SiO2, 15% to 25% of Al2O3, 0% to 5% of B2O3, 3% to 10% of MgO, 7% to 20% of SrO, and 0% to 5% of BaO, is substantially free of an alkali metal oxide, and has a strain point of more than 720° C.Type: ApplicationFiled: December 30, 2022Publication date: May 11, 2023Applicant: Nippon Electric Glass Co., Ltd.Inventor: Atsuki SAITO
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Patent number: 11572304Abstract: An alkali-free glass of the present invention includes as a glass composition, in terms of mass %, 55% to 70% of SiO2, 15% to 25% of Al2O3, 0% to 5% of B2O3, 3% to 10% of MgO, 7% to 20% of SrO, and 0% to 5% of BaO, is substantially free of an alkali metal oxide, and has a strain point of more than 720° C.Type: GrantFiled: November 21, 2017Date of Patent: February 7, 2023Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventor: Atsuki Saito
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Publication number: 20230032724Abstract: A method for manufacturing a glass substrate having a strain point of 680° C. or higher, the method includes: a step of melting a glass raw material; and a step of forming a molten glass, in which the forming step includes a step of cooling the molten glass such that a cooling time in a temperature range from an annealing point of the glass substrate to 500° C. is 35 seconds or more, and in a case where a cooling profile indicating a temperature change with respect to the cooling time is linearly approximated by a least-squares method in the temperature range from the annealing point of the glass substrate to 500° C., a coefficient of determination R2 in the least-squares method is 0.7 or more.Type: ApplicationFiled: December 8, 2020Publication date: February 2, 2023Applicant: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Atsuki SAITO, Naotoshi INAYAMA, Shunsuke MIYATA
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Publication number: 20220363585Abstract: A glass substrate of the present invention has a temperature at a viscosity at high temperature of 102.5 dPa·s of 1,650° C. or less, and an estimated viscosity Log ?500 at 500° C. of 26.0 or more calculated by the equation Log ?500=0.167×Ps?0.015×Ta?0.062×Ts?18.5.Type: ApplicationFiled: July 20, 2022Publication date: November 17, 2022Inventor: Atsuki SAITO
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Publication number: 20220298057Abstract: Provided is a glass substrate having low chargeability. A glass substrate contains, as a glass composition in terms of % by mass, 1.7 to less than 9% B2O3, 0.01% or less Li2O, 0.001 to 0.03% Na2O, 0.0001 to 0.007% K2O, 0.0011 to 0.035% Na2O+K2O, and more than 0 to 0.4% SnO2.Type: ApplicationFiled: July 28, 2020Publication date: September 22, 2022Inventor: Atsuki SAITO
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Patent number: 11427496Abstract: A glass substrate of the present invention has a temperature at a viscosity at high temperature of 102.5 dPa·s of 1,650° C. or less, and an estimated viscosity Log ?500 at 500° C. of 26.0 or more calculated by the equation Log ?500=0.167×Ps?0.015×Ta?0.062×Ts?18.5.Type: GrantFiled: April 12, 2018Date of Patent: August 30, 2022Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventor: Atsuki Saito
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Publication number: 20220135465Abstract: Devised is a glass which has high heat resistance and a low thermal expansion coefficient, and is excellent in productivity. A glass of the present invention includes as a glass composition, in terms of mol %, 55% to 80% of SiO2, 12% to 30% of Al2O3, 0% to 3% of B2O3, 0% to 1% of Li2O+Na2O+K2O, and 5% to 35% of MgO+CaO+SrO+BaO, and has a thermal expansion coefficient within a temperature range of from 30° C. to 380° C. of less than 40×10?7/° C.Type: ApplicationFiled: January 14, 2022Publication date: May 5, 2022Applicant: Nippon Electric Glass Co., Ltd.Inventor: Atsuki SAITO
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Patent number: 11261123Abstract: Devised is a glass which has high heat resistance and a low thermal expansion coefficient, and is excellent in productivity. A glass of the present invention includes as a glass composition, in terms of mol %, 55% to 80% of SiO2, 12% to 30% of Al2O3, 0% to 3% of B2O3, 0% to 1% of Li2O+Na2O+K2O, and 5% to 35% of MgO+CaO+SrO+BaO, and has a thermal expansion coefficient within a temperature range of from 30° C. to 380° C. of less than 40×10?7/° C.Type: GrantFiled: January 28, 2020Date of Patent: March 1, 2022Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventor: Atsuki Saito
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Publication number: 20220024806Abstract: An alkali-free glass sheet of the present invention includes as a glass composition, in terms of mol %, 60% to 90% of SiO2, 5% to 20% of Al2O3, 0% to 15% of B2O3, 0.1% to 20% of P2O5, 0% to 0.5% of Li2O+Na2O+K2O, 0% to 10% of MgO, 0.1% to 10% of CaO, and 0% to 5% of SrO, and has an average thermal expansion coefficient in a temperature range of from 30° C. to 380° C. of 34.0×107/° C. or less.Type: ApplicationFiled: December 6, 2019Publication date: January 27, 2022Applicant: Nippon Electric Glass Co., Ltd.Inventors: Atsuki SAITO, Masahiro HAYASHI
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Publication number: 20220009818Abstract: An alkali-free glass of the present invention includes as a glass composition, in terms of mass %, 55% to 70% of SiO2, 15% to 25% of Al2O3, 0% to 1% of B2O3, 0% to 0.5% of Li2O+Na2O+K2O, 2% to 6% of MgO, 2% to 8% of CaO, 0% to 4% of SrO, and 6% to 12% of BaO, and has a strain point of more than 720° C.Type: ApplicationFiled: September 28, 2021Publication date: January 13, 2022Inventor: Atsuki SAITO
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Publication number: 20210380469Abstract: The present invention provides an alkali-free glass sheet, including as a glass composition, in terms of mol %, 60% to 74% of SiO2, 6% to 20% of Al2O3, 0% to 9% of B2O3, 1% to 13% of MgO, 1% to 13% of CaO, 0% to 7% of SrO, 0% to 8% of BaO, and 0% to less than 1.0% of Y2O3+La2O3, being substantially free of an alkali metal oxide, and having a strain point of 650° C. or more.Type: ApplicationFiled: October 7, 2019Publication date: December 9, 2021Applicant: Nippon Electric Glass Co., Ltd.Inventors: Atsushi MUSHIAKE, Atsuki SAITO, Masahiro HAYASHI, Takashi MURATA
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Publication number: 20210380468Abstract: The present invention provides an alkali-free glass sheet, including as a glass composition, in terms of mol %, 55% to 80% of SiO2, 10% to 25% of Al2O3, 0% to 4% of B2O3, 0% to 30% of MgO, 0% to 25% of CaO, 0% to 15% of SrO, 0% to 15% of BaO, 0% to 5% of ZnO, and 0% to less than 1.0% of Y2O3+La2O3, being substantially free of an alkali metal oxide, and having a strain point of 750° C. or more.Type: ApplicationFiled: September 25, 2019Publication date: December 9, 2021Inventors: Atsushi MUSHIAKE, Atsuki SAITO
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Patent number: 11161770Abstract: An alkali-free glass of the present invention includes as a glass composition, in terms of mass %, 55% to 70% of SiO2, 15% to 25% of Al2O3, 0% to 1% of B2O3, 0% to 0.5% of Li2O+Na2O+K2O, 2% to 6% of MgO, 2% to 8% of CaO, 0% to 4% of SrO, and 6% to 12% of BaO, and has a strain point of more than 720° C.Type: GrantFiled: December 18, 2017Date of Patent: November 2, 2021Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventor: Atsuki Saito
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Publication number: 20210300813Abstract: A glass of the present invention includes as a glass composition, in terms of mass %, 55% to 70% of SiO2, 15% to 25% of Al2O3, 1% to 5% of B2O3, 0% to 0.5% of Li2O+Na2O+K2O, 0% to 4% of MgO, 3% to 11% of CaO, 0% to 4% of SrO, and 0% to 11% of BaO, and has a strain point of more than 715° C.Type: ApplicationFiled: June 14, 2021Publication date: September 30, 2021Inventor: Atsuki SAITO
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Patent number: 11066326Abstract: A glass of the present invention includes as a glass composition, in terms of mass %, 55% to 70% of SiO2, 15% to 25% of Al2O3, 1% to 5% of B2O3, 0% to 0.5% of Li2O+Na2O+K2O, 0% to 4% of MgO, 3% to 11% of CaO, 0% to 4% of SrO, and 0% to 11% of BaO, and has a strain point of more than 715° C.Type: GrantFiled: December 14, 2017Date of Patent: July 20, 2021Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventor: Atsuki Saito
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Publication number: 20200239353Abstract: Devised is a glass which has high heat resistance and a low thermal expansion coefficient, and is excellent in productivity. A glass of the present invention includes as a glass composition, in terms of mol %, 55% to 80% of SiO2, 12% to 30% of Al2O3, 0% to 3% of B2O3, 0% to 1% of Li2O+Na2O+K2O, and 5% to 35% of MgO+CaO+SrO+BaO, and has a thermal expansion coefficient within a temperature range of from 30° C. to 380° C. of less than 40×10?7/° C.Type: ApplicationFiled: January 28, 2020Publication date: July 30, 2020Applicant: Nippon Electric Glass Co., Ltd.Inventor: Atsuki SAITO
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Patent number: 10691213Abstract: Provided are a top panel for a tactile sensation display device and a tactile sensation display device that are capable of enhancing the expressiveness of tactile sensation. A top panel 1 for a tactile sensation display device is for use in a tactile sensation display device 10 and has an internal friction of 1.0×10?2 or less.Type: GrantFiled: April 3, 2018Date of Patent: June 23, 2020Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Naoki Fujita, Shinsaku Nishida, Atsuki Saito
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Publication number: 20200165155Abstract: An alkali-free glass of the present invention includes as a glass composition, in terms of mass %, 55% to 70% of SiO2, 15% to 25% of Al2O3, 0% to 5% of B2O3, 3% to 10% of MgO, 7% to 20% of SrO, and 0% to 5% of BaO, is substantially free of an alkali metal oxide, and has a strain point of more than 720° C.Type: ApplicationFiled: November 21, 2017Publication date: May 28, 2020Applicant: NIPPON ELECTRIC GLASS CO., LTD.Inventor: Atsuki SAITO