Patents by Inventor Naotoshi Inayama
Naotoshi Inayama 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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Patent number: 11946133Abstract: A production method for a glass roll includes a start preparation step (S1) of feeding-out a first lead film (LF1) coupled to a starting end portion (GFa) of a first glass film (GF1) from an unwinding device (3) and allowing a winding device (8) to wind the first lead film (LF1 after passing of the first lead film (LF1) through a thermal film-forming device (4),). The start preparation step (S1) includes a temperature increasing step of causing the thermal film-forming device (4) to be increased in temperature to a film-forming temperature. The first glass film (GF1) reaches the thermal film-forming device (4) before the thermal film-forming device (4) is increased in temperature to the film-forming temperature.Type: GrantFiled: May 22, 2020Date of Patent: April 2, 2024Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Hiroki Mori, Takayoshi Saito, Naotoshi Inayama, Riku Yamashiro
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Patent number: 11746035Abstract: In a manufacturing method of a glass roll, a transport device transports a glass film coupled to lead films via coupling portions. The transport device separates the lead films and/or the coupling portions from a heating roller when the lead films and/or the coupling portions pass by the heating roller.Type: GrantFiled: June 25, 2020Date of Patent: September 5, 2023Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Takayoshi Saito, Hiroki Mori, Riku Yamashiro, Naotoshi Inayama
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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: 20220235452Abstract: A production method for a glass roll includes a start preparation step (S1) of feeding-out a first lead film (LF1) coupled to a starting end portion (GFa) of a first glass film (GF1) from an unwinding device (3) and allowing a winding device (8) to wind the first lead film (LF1 after passing of the first lead film (LF1) through a thermal film-forming device (4),). The start preparation step (S1) includes a temperature increasing step of causing the thermal film-forming device (4) to be increased in temperature to a film-forming temperature. The first glass film (GF1) reaches the thermal film-forming device (4) before the thermal film-forming device (4) is increased in temperature to the film-forming temperature.Type: ApplicationFiled: May 22, 2020Publication date: July 28, 2022Inventors: Hiroki MORI, Takayoshi SAITO, Naotoshi INAYAMA, Riku YAMASHIRO
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Publication number: 20220227655Abstract: In a manufacturing method of a glass roll, a transport device transports a glass film coupled to lead films via coupling portions. The transport device separates the lead films and/or the coupling portions from a heating roller when the lead films and/or the coupling portions pass by the heating roller.Type: ApplicationFiled: June 25, 2020Publication date: July 21, 2022Inventors: Takayoshi SAITO, Hiroki MORI, Riku YAMASHIRO, Naotoshi INAYAMA
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Patent number: 10246374Abstract: Provided are a glass film layered body and a method for manufacturing a glass film layered body whereby glass film yield and nondefective product rate are enhanced while handling properties of the glass film are enhanced. A method for manufacturing a glass film layered body fabricated by layering a glass film on a support glass, the method provided with an ultrasonic wave application step for applying ultrasonic waves to at least peripheral parts of the glass film and the support glass, a cleaning step for cleaning the glass film and support glass which have undergone the ultrasonic wave application step, and a layering step for layering the glass film on the support glass which has undergone the cleaning step and fabricating a glass film layered body.Type: GrantFiled: October 7, 2014Date of Patent: April 2, 2019Assignee: NIPPON ELECTRIC GLASS CO. LTD.Inventors: Naotoshi Inayama, Mutsumu Fukada
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Patent number: 10118255Abstract: A cutting method of a multilayer structure containing a brittle layer is provided. The cutting method includes: cutting the multilayer structure to form a cut edge; removing a material of the multilayer structure other than the brittle layer along the cut edge, wherein the material of the multilayer structure other than the brittle layer has a width ranging from 1 micron to 2 millimeter; and modifying an edge of the brittle layer remaining after removing the material of the multilayer structure other than the brittle layer by a laser beam.Type: GrantFiled: March 31, 2016Date of Patent: November 6, 2018Assignees: Industrial Technology Research Institute, Nippon Electric Glass Co., Ltd.Inventors: Jyun-Kai Ciou, Yung-Min Hsieh, Kuo-Hsin Huang, Naotoshi Inayama, Takehiko Isomoto, Takahide Fujii, Chang-Ying Chen
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Patent number: 9764979Abstract: Provided is a cutting method for a glass sheet, comprising radiating a laser beam to a cutting portion (C) of a glass sheet (G) having a thickness of 500 ?m or less to fuse the glass sheet (G), wherein a narrowest gap between fused end surfaces (Ga1 and Gb1) of the glass sheet (G), which face each other in the cutting portion (C), is managed to satisfy a relationship of 0.1?b/a?2, where “a” is a thickness of the glass sheet (G) and “b” is the narrowest gap.Type: GrantFiled: June 8, 2016Date of Patent: September 19, 2017Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Takahide Fujii, Setsuo Uchida, Naotoshi Inayama, Takayuki Noda, Sho Itoh, Michiharu Eta
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Patent number: 9725353Abstract: Provided is a laser fusing method for a glass sheet, including: cutting the glass sheet (G) by irradiating the glass sheet (G) with a laser (L) from a front surface (S) side thereof along a preset cutting line (X) extending in a surface direction of the glass sheet (G); and jetting a shaping gas (A3) so as to form a flow along at least one of the front surface (S) and a back surface (B) of the glass sheet (G), the shaping gas (A3) passing through an irradiation portion (C) of the laser (L).Type: GrantFiled: October 11, 2013Date of Patent: August 8, 2017Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventor: Naotoshi Inayama
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Patent number: 9701565Abstract: A method of manufacturing a glass sheet laminate to be formed by integrally laminating two glass sheets includes: laminating the two glass sheets by bringing surfaces thereof in a vicinity of an outer peripheral portion into surface contact with each other; performing laser fusing so as to cut and remove a part of a surface contact portion under a state in which the surface contact portion has a surface roughness of 2.0 nm or less; and processing a fusing end surface of the surface contact portion into a curved surface and sealing the fusing end surface with heat generated when the laser fusing is performed.Type: GrantFiled: October 24, 2013Date of Patent: July 11, 2017Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Takahide Fujii, Naotoshi Inayama
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Patent number: 9643878Abstract: Provided is a manufacturing method for a glass sheet, including: fusing a glass ribbon (G) by irradiating the glass ribbon (G) with a laser (L) along a preset cutting line (X), which is a boundary between a product portion (G1) to be used as a product and a non-product portion (G2) to be discarded, and jetting an assist gas (A) onto molten glass (M) generated by melting the glass ribbon (G) through heating with the laser (L) so as to remove the molten glass (M) by scattering the molten glass (M); and breaking the non-product portion (G2) so as to discard the non-product portion (G2), the assist gas (A) being jetted from the product portion (G1) side with respect to the preset cutting line (X), to thereby cause scattered pieces of the molten glass (M) to adhere to the non-product portion (G2) as pieces of dross (D).Type: GrantFiled: October 29, 2013Date of Patent: May 9, 2017Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Takahide Fujii, Naotoshi Inayama
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Publication number: 20160288249Abstract: A cutting method of a multilayer structure containing a brittle layer is provided. The cutting method includes: cutting the multilayer structure to form a cut edge; removing a material of the multilayer structure other than the brittle layer along the cut edge, wherein the material of the multilayer structure other than the brittle layer has a width ranging from 1 micron to 2 millimeter; and modifying an edge of the brittle layer remaining after removing the material of the multilayer structure other than the brittle layer by a laser beam.Type: ApplicationFiled: March 31, 2016Publication date: October 6, 2016Inventors: Jyun-Kai Ciou, Yung-Min Hsieh, Kuo-Hsin Huang, NAOTOSHI INAYAMA, TAKEHIKO ISOMOTO, TAKAHIDE FUJII, Chang-Ying Chen
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Publication number: 20160280581Abstract: Provided is a cutting method for a glass sheet, comprising radiating a laser beam to a cutting portion (C) of a glass sheet (G) having a thickness of 500 ?m or less to fuse the glass sheet (G), wherein a narrowest gap between fused end surfaces (Ga1 and Gb1) of the glass sheet (G), which face each other in the cutting portion (C), is managed to satisfy a relationship of 0.1?b/a?2, where “a” is a thickness of the glass sheet (G) and “b” is the narrowest gap.Type: ApplicationFiled: June 8, 2016Publication date: September 29, 2016Applicant: Nippon Electric Glass Co., Ltd.Inventors: Takahide FUJII, Setsuo UCHIDA, Naotoshi INAYAMA, Takayuki NODA, Sho ITOH, Michiharu ETA
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Publication number: 20160272531Abstract: A glass sheet cut by laser fusing includes a width region on a front surface side and a width region on a back surface side. The width region on the front surface side has a width of 400 ?m from a boundary between an end surface formed by cutting and the front surface. The width region on the back surface side has a width of 400 ?m from a boundary between the end surface formed by cutting and the back surface. In each of the width region on the front surface side and the width region on the back surface side, a ratio of an area of adhesion of dross having a particle diameter of 2 ?m or more with respect to an area of the each of the width region on the front surface side and the width region on the back surface side is 0.01 or less.Type: ApplicationFiled: October 11, 2013Publication date: September 22, 2016Inventor: Naotoshi INAYAMA
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Publication number: 20160272532Abstract: Provided is a method of manufacturing a glass sheet laminate to be formed by integrally laminating two glass sheets (2, 3), the method including: laminating the two glass sheets (2, 3) by bringing their surfaces in a vicinity of an outer peripheral portion into surface contact with each other; performing laser fusing so as to cut and remove a part of a surface contact portion (9) under a state in which the surface contact portion (9) has a surface roughness (Ra) of 2.0 nm or less; and processing a fusing end surface of the surface contact portion (9) into a curved surface and sealing the fusing end surface with heat generated when the laser fusing is performed.Type: ApplicationFiled: October 24, 2013Publication date: September 22, 2016Inventors: Takahide FUJII, Naotoshi INAYAMA
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Patent number: 9422184Abstract: Provided is a cutting method for a glass sheet, comprising radiating a laser beam to a cutting portion (C) of a glass sheet (G) having a thickness of 500 ?m or less to fuse the glass sheet (G), wherein a narrowest gap between fused end surfaces (Ga1 and Gb1) of the glass sheet (G), which face each other in the cutting portion (C), is managed to satisfy a relationship of 0.1?b/a?2, where “a” is a thickness of the glass sheet (G) and “b” is the narrowest gap.Type: GrantFiled: September 14, 2012Date of Patent: August 23, 2016Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Takahide Fujii, Setsuo Uchida, Naotoshi Inayama, Takayuki Noda, Sho Itoh, Michiharu Eta
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Publication number: 20160229744Abstract: Provided are a glass film layered body and a method for manufacturing a glass film layered body whereby glass film yield and nondefective product rate are enhanced while handling properties of the glass film are enhanced. A method for manufacturing a glass film layered body fabricated by layering a glass film on a support glass, the method provided with an ultrasonic wave application step for applying ultrasonic waves to at least peripheral parts of the glass film and the support glass, a cleaning step for cleaning the glass film and support glass which have undergone the ultrasonic wave application step, and a layering step for layering the glass film on the support glass which has undergone the cleaning step and fabricating a glass film layered body.Type: ApplicationFiled: October 7, 2014Publication date: August 11, 2016Inventors: Naotoshi INAYAMA, Mutsumu FUKADA
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Publication number: 20150307386Abstract: Provided is a laser fusing method for a glass sheet, including: cutting the glass sheet (G) by irradiating the glass sheet (G) with a laser (L) from a front surface (S) side thereof along a preset cutting line (X) extending in a surface direction of the glass sheet (G); and jetting a shaping gas (A3) so as to form a flow along at least one of the front surface (S) and a back surface (B) of the glass sheet (G), the shaping gas (A3) passing through an irradiation portion (C) of the laser (L).Type: ApplicationFiled: October 11, 2013Publication date: October 29, 2015Inventor: Naotoshi INAYAMA
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Publication number: 20150299019Abstract: Provided is a manufacturing method for a glass sheet, including: fusing a glass ribbon (G) by irradiating the glass ribbon (G) with a laser (L) along a preset cutting line (X), which is a boundary between a product portion (G1) to be used as a product and a non-product portion (G2) to be discarded, and jetting an assist gas (A) onto molten glass (M) generated by melting the glass ribbon (G) through heating with the laser (L) so as to remove the molten glass (M) by scattering the molten glass (M); and breaking the non-product portion (G2) so as to discard the non-product portion (G2), the assist gas (A) being jetted from the product portion (G1) side with respect to the preset cutting line (X), to thereby cause scattered pieces of the molten glass (M) to adhere to the non-product portion (G2) as pieces of dross (D).Type: ApplicationFiled: October 29, 2013Publication date: October 22, 2015Inventors: Takahide FUJII, Naotoshi INAYAMA
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Patent number: 9021837Abstract: A method of cleaving and separating a glass sheet includes a cleaving step of cleaving a glass sheet along preset cleaving lines by a laser cleaving method, and a separation step of separating adjacent pieces of the cleaved glass sheet from each other. The cleaving step is performed under a state in which the glass sheet is placed on support members provided respectively in segment regions, which are segmented by the preset cleaving lines. The separation step is performed by separating the support members from each other in adjacent segment regions.Type: GrantFiled: December 12, 2012Date of Patent: May 5, 2015Assignee: Nippon Electric Glass Co., Ltd.Inventors: Yasuo Teranishi, Yasuhiro Matsumoto, Michiharu Eta, Takahide Fujii, Naotoshi Inayama