Patents by Inventor Etsurou Hirota
Etsurou Hirota 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: 11648754Abstract: An interlayer film for laminated glass is disclosed which contains a thermoplastic resin and has a portion where the amount of increase in the thickness is increased in a direction from one end to the other end in the region where the thickness is increased, or has a portion where the amount of increase in the thickness is decreased in a direction from one end to the other end in the region where the thickness is increased, and the ten-point average roughness Rz of the surface at a center position of the portion where the amount of increase in the thickness is increased, or the portion where the amount of increase in the thickness is decreased is 20 ?m or more.Type: GrantFiled: September 29, 2016Date of Patent: May 16, 2023Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Hiromitsu Nishino, Etsurou Hirota, Koji Kumakura
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Patent number: 11186068Abstract: There is provided an interlayer film for laminated glass capable of being enhanced in handling properties at the time of preparing laminated glass. The interlayer film for laminated glass according to the present invention has one end and the other end being at the opposite side of the one end, the thickness of the other end is larger than the thickness of the one end, and the glossiness on the surface of a maximum thickness part is 3% or more.Type: GrantFiled: December 13, 2016Date of Patent: November 30, 2021Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Hiromitsu Nishino, Etsurou Hirota
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Patent number: 10836143Abstract: There is provided an interlayer film for laminated glass capable of being enhanced in handling properties at the time of preparing laminated glass. The interlayer film for laminated glass according to the present invention has one end and the other end being at the opposite side of the one end, has two or more uniform thickness parts where the thickness is uniform in a direction connecting the one end and the other end, and has one or more thickness increasing part where the thickness is made to increase in the direction connecting the one end and the other end, the thickness of the other end is larger than the thickness of the one end, and the thickness in the uniform thickness part positioned nearest to the other end side is larger than the thickness in the uniform thickness part positioned nearest to the one end side.Type: GrantFiled: January 16, 2017Date of Patent: November 17, 2020Assignee: SEKISUI CHEMICAL CO., LTD.Inventor: Etsurou Hirota
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Patent number: 10414129Abstract: The present invention aims to provide an interlayer film for a laminated glass, which includes two or more stacked resin layers including a colored layer, exhibits excellent deaeration properties in a production process of a laminated glass, and is capable of preventing poor appearance of a colored portion, and a laminated glass including the interlayer film for a laminated glass. The present invention relates to an interlayer film for a laminated glass, having a laminated structure including two or more layers, at least including: an outer layer disposed on the outermost surface of the interlayer film for a laminated glass and having a large number of recesses on one surface; and a colored layer containing a colorant, a minimum distance between an outer layer side surface of the colored layer and the surface having a large number of recesses of the outer layer being 150 ?m or longer.Type: GrantFiled: April 7, 2016Date of Patent: September 17, 2019Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Michiko Mori, Hiroshi Kawate, Etsurou Hirota, Koji Kido
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Publication number: 20190022982Abstract: There is provided an interlayer film for laminated glass capable of being enhanced in handling properties at the time of preparing laminated glass. The interlayer film for laminated glass according to the present invention has one end and the other end being at the opposite side of the one end, has two or more uniform thickness parts where the thickness is uniform in a direction connecting the one end and the other end, and has one or more thickness increasing part where the thickness is made to increase in the direction connecting the one end and the other end, the thickness of the other end is larger than the thickness of the one end, and the thickness in the uniform thickness part positioned nearest to the other end side is larger than the thickness in the uniform thickness part positioned nearest to the one end side.Type: ApplicationFiled: January 16, 2017Publication date: January 24, 2019Inventor: Etsurou Hirota
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Publication number: 20180319130Abstract: There is provided an interlayer film for laminated glass capable of being enhanced in handling properties at the time of preparing laminated glass. The interlayer film for laminated glass according to the present invention has one end and the other end being at the opposite side of the one end, the thickness of the other end is larger than the thickness of the one end, and the glossiness on the surface of a maximum thickness part is 3% or more.Type: ApplicationFiled: December 13, 2016Publication date: November 8, 2018Inventors: Hiromitsu Nishino, Etsurou Hirota
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Publication number: 20180297332Abstract: There is provided an interlayer film for laminated glass with which an air bubble can be made difficult to be left behind between a lamination glass member and the interlayer film when laminated glass is obtained. The interlayer film for laminated glass according to the present invention contains a thermoplastic resin and has one end and the other end being at the opposite side of the one and and having a thickness thicker than the one end, each of three values of the ten-point average roughness Rz of the surface at a position apart from the one end by 50 mm toward the other end, the ten-point average roughness Rz of the surface at a center position between the one end and the other end, and the ten-point average roughness Rz of the surface at a position apart from the other end by 50 mm toward the one end is 20 ?m or more, and a value calculated by subtracting the smallest value among the three values from the largest value among the three values is 3 ?m or more and 9 ?m or less.Type: ApplicationFiled: September 29, 2016Publication date: October 18, 2018Inventors: Hiromitsu Nishino, Etsurou Hirota, Koji Kumakura
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Publication number: 20180272661Abstract: There is provided an interlayer film for laminated glass with which an air bubble can be made difficult to be left behind between a lamination glass member and the interlayer film when laminated glass is obtained.Type: ApplicationFiled: September 29, 2016Publication date: September 27, 2018Inventors: Hiromitsu Nishino, Etsurou Hirota, Koji Kumakura
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Publication number: 20180104934Abstract: The present invention aims to provide an interlayer film for a laminated glass, which includes two or more stacked resin layers including a colored layer, exhibits excellent deaeration properties in a production process of a laminated glass, and is capable of preventing poor appearance of a colored portion, and a laminated glass including the interlayer film for a laminated glass. The present invention relates to an interlayer film for a laminated glass, having a laminated structure including two or more layers, at least including: an outer layer disposed on the outermost surface of the interlayer film for a laminated glass and having a large number of recesses on one surface; and a colored layer containing a colorant, a minimum distance between an outer layer side surface of the colored layer and the surface having a large number of recesses of the outer layer being 150 ?m or longer.Type: ApplicationFiled: April 7, 2016Publication date: April 19, 2018Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Michiko MORI, Hiroshi KAWATE, Etsurou HIROTA, Koji KIDO
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Publication number: 20170197383Abstract: The present invention aims to provide an interlayer film for laminated glass which has a laminated structure including a plastic layer with a high Young's modulus and a resin layer, which is excellent in impact resistance and penetration resistance, which has high adhesiveness between the plastic layer and the resin layer, and which prevents blocking of the resin layer, and a laminated glass including the interlayer film for laminated glass. The present invention relates to an interlayer film for laminated glass, having a multilayer structure including: a plastic layer with a Young's modulus of 1 GPa or more; and a first resin layer on a first surface of the plastic layer, the first resin layer having a glossiness of 10 to 40 on the surface on the side to be in contact with the plastic layer.Type: ApplicationFiled: September 30, 2015Publication date: July 13, 2017Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Etsurou HIROTA, Hiroshi KAWATE, Michiko MORI, Koji KIDO
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Publication number: 20170197385Abstract: The present invention aims to provide an interlayer film for laminated glass, which does not protrude from between glass plates during preliminary pressure bonding in production of laminated glass, and a laminated glass including the interlayer film for laminated glass. The present invention relates to an interlayer film for laminated glass showing an expansion coefficient in a width direction of 10% or less as measured after immersion in hot water at 80° C. for 10 minutes.Type: ApplicationFiled: September 30, 2015Publication date: July 13, 2017Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Etsurou HIROTA, Hiroshi KAWATE, Koji KIDO, Michiko MORI
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Publication number: 20170165938Abstract: The present invention aims to provide an interlayer film for a laminated glass, which can exhibit high deaeration properties during preliminary pressure bonding and enables production of a highly transparent laminated glass, a roll, a laminated glass, a method for producing the interlayer film for a laminated glass, and a method for producing the roll.Type: ApplicationFiled: September 30, 2015Publication date: June 15, 2017Applicant: Sekisui Chemical Co., Ltd.Inventors: Etsurou HIROTA, Hiroshi KAWATE, Koji KIDO, Michiko MORI
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Publication number: 20140315028Abstract: The present invention provides an interlayer film for laminated glass having a monolayer structure comprising only a first layer or a multilayer structure comprising at least two layers including a first layer and a second layer stacked at least on one face of the first layer, wherein the first layer contains a thermoplastic resin and a first plasticizer represented by the formula (1): and the interlayer film has a monolayer structure or a multilayer structure including at least two layers and includes the first layer further containing a second plasticizer that is a diester compound, or the interlayer film has a multilayer structure including at least two layers and includes the second layer containing a plasticizer and a polyvinyl acetal resin with a hydroxyl content of 25 to 40 mol %.Type: ApplicationFiled: June 30, 2014Publication date: October 23, 2014Inventors: Michio Shimamoto, Shota Matsuda, Sinyul Yang, Etsurou Hirota, Kohei Kani, Tatsuya Iwamoto
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Patent number: 8790784Abstract: The present invention provides an interlayer film for laminated glass having a monolayer structure comprising only a first layer or a multilayer structure comprising at least two layers including a first layer and a second layer stacked at least on one face of the first layer, wherein the first layer contains a thermoplastic resin and a first plasticizer represented by the formula (1): and the interlayer film has a monolayer structure or a multilayer structure including at least two layers and includes the first layer further containing a second plasticizer that is a diester compound, or the interlayer film has a multilayer structure including at least two layers and includes the second layer containing a plasticizer and a polyvinyl acetal resin with a hydroxyl content of 25 to 40 mol %.Type: GrantFiled: July 15, 2011Date of Patent: July 29, 2014Assignee: Sekisui Chemical Co., Ltd.Inventors: Michio Shimamoto, Shota Matsuda, Sinyul Yang, Etsurou Hirota, Kohei Kani, Tatsuya Iwamoto
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Publication number: 20130157065Abstract: The present invention provides an interlayer film for laminated glass which can give a laminated glass with better sound insulation when used in the laminated glass. The present invention provides an interlayer film for laminated glass having a monolayer structure comprising only a first layer or a multilayer structure comprising at least two layers including a first layer and a second layer stacked at least on one face of the first layer, wherein the first layer contains a thermoplastic resin and a first plasticizer represented by the formula (1): and the interlayer film has a monolayer structure or a multilayer structure including at least two layers and includes the first layer further containing a second plasticizer that is a diester compound, or the interlayer film has a multilayer structure including at least two layers and includes the second layer containing a plasticizer and a polyvinyl acetal resin with a hydroxyl content of 25 to 40 mol %.Type: ApplicationFiled: July 15, 2011Publication date: June 20, 2013Inventors: Michio Shimamoto, Shota Matsuda, Sinyul Yang, Etsurou Hirota, Kohei Kani, Tatsuya Iwamoto
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Patent number: 8404351Abstract: An interlayer film for a laminated glass providing excellent overall sound insulation at temperatures in the range of from 10 to 60° C., which includes, a sound insulation layer 1; a middle layer; and a sound insulation layer 2, the layers each containing a polyvinyl acetal resin and a plasticizer and being laminated in the stated order, wherein the amount of the plasticizer per 100 parts by weight of the polyvinyl acetal resin in sound insulation layer 1 is different by from 5 to 60 parts by weight from the amount of the plasticizer per 100 parts by weight of the polyvinyl acetal resin in sound insulation layer 2, and the amounts of acetyl groups in the polyvinyl acetal resin contained in sound insulation layer 1 and sound insulation layer 2 each are larger than the amount of acetyl groups in the polyvinyl acetal resin contained in the middle layer.Type: GrantFiled: February 23, 2010Date of Patent: March 26, 2013Assignee: Sekisui Chemical Co., Ltd.Inventors: Etsurou Hirota, Juichi Fukatani, Manabu Matsumoto, Michio Shimamoto
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Publication number: 20120021231Abstract: The present invention aims to provide an interlayer film for a laminated glass providing excellent overall sound insulation at temperatures in the wide range of from 10 to 60° C. The present invention is an interlayer film for a laminated glass, including: a sound insulation layer 1; a middle layer; and a sound insulation layer 2, the layers each containing a polyvinyl acetal resin and a plasticizer and being laminated in the stated order, wherein the amount of the plasticizer per 100 parts by weight of the polyvinyl acetal resin in the sound insulation layer 1 is different by from 5 to 60 parts by weight from the amount of the plasticizer per 100 parts by weight of the polyvinyl acetal resin in the sound insulation layer 2, and the amounts of acetyl groups in the polyvinyl acetal resin contained in the sound insulation layer 1 and the sound insulation layer 2 each are larger than the amount of acetyl groups in the polyvinyl acetal resin contained in the middle layer.Type: ApplicationFiled: February 23, 2010Publication date: January 26, 2012Applicant: Sekisui Chemical Co., Ltd.Inventors: Etsurou Hirota, Juichi Fukatani, Manabu Matsumoto, Michio Shimamoto