Patents by Inventor Kazuhiko Nakayama
Kazuhiko Nakayama 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: 11097517Abstract: The present invention aims to provide an interlayer film for a laminated glass which has a multilayer structure including two or more resin layers laminated together and can prevent optical distortion even at high temperatures, a laminated glass including the interlayer film for a laminated glass, and a method of producing the interlayer film for a laminated glass. The present invention relates to an interlayer film for a laminated glass, the interlayer film including: two or more resin layers laminated together, one resin layer having a surface with a ratio (Rz/Sm) of a ten-point average roughness Rz (?m) to an average interval Sm (?m) of projections and recesses of 0.Type: GrantFiled: September 30, 2015Date of Patent: August 24, 2021Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Shougo Yoshida, Kazuhiko Nakayama, Hiroshi Kawate
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Patent number: 11084254Abstract: There is provided an interlayer film for laminated glass with which discoloration in the colored part can be suppressed. An interlayer film (1) for laminated glass according to the present invention has a colored part (X) that is colored in plan view, and a non-colored part (Y) that is not colored in plan view; the interlayer film does not contain or contains a light stabilizer in the colored part; the interlayer film contains a light stabilizer in the non-colored part; and a content of the light stabilizer in the entire non-colored part is larger than a content of the light stabilizer in the entire colored part.Type: GrantFiled: June 6, 2018Date of Patent: August 10, 2021Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Shougo Yoshida, Manabu Matsumoto, Kazuhiko Nakayama, Moyuru Okano
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Publication number: 20210213711Abstract: Provided is an interlayer film for laminated glass capable of obtaining a plurality of laminated glasses having excellent appearance designability. The interlayer film for laminated glass according to the present invention has a length of 30 m or more in the lengthwise direction, and has a colored part, and the colored part has a specific gradation part, and the gradation part forms a tip of the colored part on the other end side in the widthwise direction, and when distance X from one end in the widthwise direction to a tip of the colored part on the other end side is measured at 1.5 m intervals in the lengthwise direction, (|Xmax?Xmin|)/Xave?0.1 is satisfied, or when distance Y from tip of the colored part on one end side in the widthwise direction to a tip of the colored part on the other end side is measured at 1.3 m intervals in the lengthwise direction, (|Ymax?Ymin)/Yave?0.1 is satisfied.Type: ApplicationFiled: August 20, 2019Publication date: July 15, 2021Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Kazuhiko NAKAYAMA, Hiroaki INUI
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Publication number: 20210187914Abstract: The present invention aims to provide an interlayer film for a laminated glass that can, even when having a thickness at the thickest portion of 850 ?m or more, exhibit sufficient deaeration properties in production of a laminated glass to provide a laminated glass with high transparency, and a laminated glass produced using the interlayer film for a laminated glass. Provided is an interlayer film for a laminated glass having a large number of recesses on at least one surface, the interlayer film for a laminated glass having a thickness T (?m) measured in conformity with JIS K-6732 (1996) and a maximum height roughness Ry (?m) measured in conformity with JIS B-0601 (1994) at a thickest portion, the thickness T and the maximum height roughness Ry satisfying the following expressions (1) and (1?): Ry?0.020×T+16.6 ??(1), T?850 ??(1?).Type: ApplicationFiled: March 31, 2017Publication date: June 24, 2021Applicant: SEKISUI CHEMICAL CO., LTD.Inventor: Kazuhiko NAKAYAMA
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Publication number: 20210129501Abstract: The present invention aims to provide an interlayer film for a laminated glass having recesses in the shape of engraved lines on both surfaces to exhibit excellent deaeration properties in production of a laminated glass and suppressing formation of a moire pattern when unwound from a rolled body thereof. The present invention also aims to provide a laminated glass including the interlayer film for a laminated glass, a method for producing an embossing roll suitably used for production of the interlayer film for a laminated glass, and a method for producing the interlayer film for a laminated glass.Type: ApplicationFiled: January 13, 2021Publication date: May 6, 2021Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Kazuhiko NAKAYAMA, Morimasa OMIZU, Masaya KONDOU
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Patent number: 10982085Abstract: Provided is a thermoplastic resin film of which adhesive force can be easily adjusted to lie within an appropriate range when the thermoplastic resin film is bonded to other members such as a glass plate. A thermoplastic resin film according to the present invention includes a thermoplastic resin, and a compound represented by the following formula (1). In the formula (1), R1, R2, R3, R4 and R5 each represent a hydrogen atom, an alkyl group, a carboxyalkyl group, a group that is a salt of a carboxyalkyl group and alkali metal, or a group that is a salt of a carboxyalkyl group and alkaline earth metal, and at least one of R1, R2, R3, R4 and R5 represents a carboxyalkyl group, a group that is a salt of a carboxyalkyl group and alkali metal, or a group that is a salt of a carboxyalkyl group and alkaline earth metal.Type: GrantFiled: March 28, 2017Date of Patent: April 20, 2021Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Shougo Yoshida, Atsushi Nohara, Kazuhiko Nakayama
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Patent number: 10933612Abstract: The present invention aims to provide an interlayer film for a laminated glass having recesses in the shape of engraved lines on both surfaces to exhibit excellent deaeration properties in production of a laminated glass and suppressing formation of a moire pattern when unwound from a rolled body thereof. The present invention also aims to provide a laminated glass including the interlayer film for a laminated glass, a method for producing an embossing roll suitably used for production of the interlayer film for a laminated glass, and a method for producing the interlayer film for a laminated glass.Type: GrantFiled: April 8, 2016Date of Patent: March 2, 2021Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Kazuhiko Nakayama, Morimasa Omizu, Masaya Kondou
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Patent number: 10882282Abstract: The present invention aims to provide an interlayer film for a laminated glass that adheres sufficiently to glass at peripheral portions of the glass to prevent occurrence of a sealing failure at the peripheral portions and also to contribute to improved production efficiency of laminated glass in production of laminated glass, even when having a thickness at the thickest portion of 850 ?m or more, and a laminated glass produced using the interlayer film for a laminated glass. Provided is an interlayer film for a laminated glass having a large number of recesses on at least one surface, the interlayer film for a laminated glass having a thickness T (?m) measured in conformity with JIS K-6732 (1996) and a maximum height roughness Ry (?m) measured in conformity with JIS B-0601 (1994) at a thickest portion, the thickness T and the maximum height roughness Ry satisfying the following expressions (1) and (1?): Ry?0.0195×T+33.2??(1), T?850??(1?).Type: GrantFiled: March 31, 2017Date of Patent: January 5, 2021Assignee: SEKISUI CHEMICAL CO., LTD.Inventor: Kazuhiko Nakayama
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Patent number: 10870254Abstract: The present invention is an interlayer film for laminated glass that includes 2 or more resin layers laminated on each other. The interlayer film for laminated glass has a large number of recesses and a large number of protrusions on at least one surface thereof. The recesses each have a groove shape with a continuous bottom. The recesses adjacent to each other are parallel to each other and regularly arranged in a line.Type: GrantFiled: August 1, 2014Date of Patent: December 22, 2020Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Hirofumi Kitano, Hiroaki Inui, Taiki Katayama, Manabu Matsumoto, Kazuhiko Nakayama
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Patent number: 10850476Abstract: The present invention provides an interlayer film for a laminated glass which is easily peelable without autohesion even after storage in a stacked state, a laminated glass prepared using the interlayer film for a laminated glass, and a method for producing the interlayer film for a laminated glass. The present invention provides an interlayer film for a laminated glass, having a large number of recesses on at least one surface, the at least one surface having the recesses having an arithmetical mean height Sa of 200 nm or more as measured in conformity with ISO 25178.Type: GrantFiled: April 8, 2016Date of Patent: December 1, 2020Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Kazuhiko Nakayama, Hiroshi Kawate, Koji Kido, Michiko Mori
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Publication number: 20200299497Abstract: Provided is a thermoplastic resin film of which adhesive force can be easily adjusted to lie within an appropriate range when the thermoplastic resin film is bonded to other members such as a glass plate. A thermoplastic resin film according to the present invention includes a thermoplastic resin, and a compound represented by the following formula (1). In the formula (1), R1, R2, R3, R4 and R5 each represent a hydrogen atom, an alkyl group, a carboxyalkyl group, a group that is a salt of a carboxyalkyl group and alkali metal, or a group that is a salt of a carboxyalkyl group and alkaline earth metal, and at least one of R1, R2, R3, R4 and R5 represents a carboxyalkyl group, a group that is a salt of a carboxyalkyl group and alkali metal, or a group that is a salt of a carboxyalkyl group and alkaline earth metal.Type: ApplicationFiled: March 28, 2017Publication date: September 24, 2020Inventors: Shougo Yoshida, Atsushi Nohara, Kazuhiko Nakayama
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Publication number: 20200276794Abstract: Provided is an interlayer film for laminated glass capable of suppressing double images, and making the moisture resistance of the laminated glass exposed to high temperature and high humidity uniform at one end and the other end of the interlayer film. The interlayer film for laminated glass according to the present invention is an interlayer film for laminated glass, being wedge-like shaped and containing an amphiphile or a surfactant, and when a high temperature and high humidity test for laminated glass is executed, a whitening distance at the one end and the other end of the interlayer film is 15 mm or less, and when a whitening distance at the one end of the interlayer film is more than 0 mm, a value of (whitening distance at the other end of the interlayer film×thickness of the other end of the interlayer film)/(whitening distance at the one end of the interlayer film×thickness of the one end of the interlayer film) is 0.70 or more.Type: ApplicationFiled: December 18, 2018Publication date: September 3, 2020Inventors: Yuusuke Oota, Kazuhiko Nakayama, Kinryou Chou
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Publication number: 20200238666Abstract: There is provided an interlayer film for laminated glass with which the occurrence of a poor appearance due to white cloudiness in laminated glass can be suppressed even though the interlayer film is provided with a layer containing silver. The interlayer film for laminated glass according to the present invention includes a first layer containing silver and a second layer containing a polyvinyl acetal resin, the second layer is arranged on a first surface side of the first layer, the second layer contains a compound having a group in which a carbon atom, an oxygen atom, or a hydrogen atom is bonded to a nitrogen atom, and the compound having a group in which a carbon atom, an oxygen atom, or a hydrogen atom is bonded to a nitrogen atom is a compound having a piperidine structure or is a hindered amine light stabilizer.Type: ApplicationFiled: September 28, 2016Publication date: July 30, 2020Inventors: Shougo Yoshida, Masaki Yamamoto, Kazuhiko Nakayama, Kouhei Yamaguchi
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Publication number: 20200223172Abstract: The present invention aims to provide a vehicular windshield having a laminated glass structure in which an interlayer film for laminated glass is interposed between at least a pair of glass plates, which contains few air bubbles remaining between the glass plates and the interlayer film for laminated glass to have an excellent appearance and is less likely to cause ghosting when external rays of light are seen through the vehicular windshield.Type: ApplicationFiled: March 16, 2020Publication date: July 16, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Hirofumi KITANO, Manabu MATSUMOTO, Kazuhiko NAKAYAMA
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Publication number: 20200219112Abstract: A container production management system including: an object identification code adding means (1) for adding an object identification code (D) indicating an object identifier (ID); a processing step reading means (2a, 2b) for reading the object identification code (D) added to the object to be processed; an inspection step reading means (3) for reading the object identification code (D) added to the object to be inspected in an inspection step; and a computing means (4) for creating a database (5) in which the object identifier (ID), information on the processing step, and inspection results in the inspection step are linked with each other, wherein the object identification code adding means (1) adds the object identification code (D) to the material member for each container, or to a portion to be the material member among raw materials (S) before the individual material member is separated therefrom.Type: ApplicationFiled: June 13, 2018Publication date: July 9, 2020Applicant: TOYO SEIKAN CO., LTD.Inventors: Kazuhiko NAKAYAMA, Takayuki TOCHIGI, Shinobu MIURA
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Publication number: 20200180276Abstract: There is provided an interlayer film for laminated glass with which discoloration in the colored part can be suppressed. An interlayer film (1) for laminated glass according to the present invention has a colored part (X) that is colored in plan view, and a non-colored part (Y) that is not colored in plan view; the interlayer film does not contain or contains a light stabilizer in the colored part; the interlayer film contains a light stabilizer in the non-colored part; and a content of the light stabilizer in the entire non-colored part is larger than a content of the light stabilizer in the entire colored part.Type: ApplicationFiled: June 6, 2018Publication date: June 11, 2020Inventors: Shougo Yoshida, Manabu Matsumoto, Kazuhiko Nakayama, Moyuru Okano
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Publication number: 20200156353Abstract: Provided is an interlayer film for laminated glass capable of preventing generation of a void in the interlayer film in an end part of laminated glass. The interlayer film for laminated glass according to the present invention has a lengthwise direction and a widthwise direction, and includes the following configuration A, the configuration B or the configuration C. Configuration A: containing a light stabilizer, and having such a distribution in content of the light stabilizer in the widthwise direction that the content of the light stabilizer is larger in one end side of the widthwise direction. Configuration B: containing an ultraviolet ray screening agent, and having such a distribution in content of the ultraviolet ray screening agent in the widthwise direction that the content of the ultraviolet ray screening agent is larger in one end side of the widthwise direction.Type: ApplicationFiled: June 6, 2018Publication date: May 21, 2020Inventors: Shougo Yoshida, Moyuru Okano, Manabu Matsumoto, Kazuhiko Nakayama
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Publication number: 20200157303Abstract: The present invention aims to provide a resin foam, a resin foam sheet, an adhesive tape, a member for a vehicle, and a member for a building that are capable of exhibiting very high sound insulation properties. Provided is a resin foam having a multitude of cells, the resin foam containing: a thermoplastic resin; and a plasticizer, the resin foam having a minimum loss factor of a primary anti-resonance frequency in the range of 20° C. to 60° C. of 0.05 or higher and a secondary anti-resonance frequency in the range of 20° C. to 60° C. of 300 to 800 Hz as measured by mechanical impedance measurement (MIM) in conformity with JIS G0602.Type: ApplicationFiled: July 5, 2018Publication date: May 21, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Katsunori TAKAHASHI, Kazuhiko NAKAYAMA, Yoshikazu MASUYAMA, Juichi FUKATANI, Tomohiro HIDA
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Publication number: 20200147937Abstract: Provided is laminated glass capable of preventing occurrence of discoloration in the interlayer film in an end part of laminated glass, and keeping the appearance of laminated glass excellent. Laminated glass according to the present invention is laminate glass including a first lamination glass member, a second lamination glass member, and an interlayer film containing a thermoplastic resin, in which no discoloration occurs in the interlayer film irradiated with light in an end part of the laminated glass after a light irradiation test: “the laminated glass is irradiated with xenon light at a black panel temperature of 83° C., a temperature inside the vessel of 50° C. and a humidity of 50% RH for 2000 hours”, or discoloration occurs within a length of 1 mm or less inwardly from an end part of the interlayer film irradiated with light in the end part of the laminated glass after the light irradiation test.Type: ApplicationFiled: March 30, 2018Publication date: May 14, 2020Inventors: Shougo Yoshida, Manabu Matsumoto, Kazuhiko Nakayama, Jun Sasaki, Moyuru Okano
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Patent number: 10632712Abstract: The present invention aims to provide a vehicular windshield having a laminated glass structure in which an interlayer film for laminated glass is interposed between at least a pair of glass plates, which contains few air bubbles remaining between the glass plates and the interlayer film for laminated glass to have an excellent appearance and is less likely to cause ghosting when external rays of light are seen through the vehicular windshield.Type: GrantFiled: August 1, 2014Date of Patent: April 28, 2020Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Hirofumi Kitano, Manabu Matsumoto, Kazuhiko Nakayama