Patents by Inventor Yoshikazu MASUYAMA
Yoshikazu MASUYAMA 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: 20240066833Abstract: The present invention aims to provide a foam, a laminated foam, and a resin sheet that are capable of exhibiting particularly excellent vibration-damping properties while being lightweight and are useful for recycling interlayer films for a laminated glass. The present invention also aims to provide a building material for housing including any of the foam, the laminated foam, and the resin sheet. Provided is a foam having a plurality of cells, the foam containing a polyvinyl acetal; a plasticizer; and a thermoplastic elastomer and/or a liquid crystal polymer.Type: ApplicationFiled: February 3, 2022Publication date: February 29, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yoshikazu MASUYAMA, Katsunori TAKAHASHI, Takanori HAMADA
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Publication number: 20230391971Abstract: The present invention aims to provide a foam, a laminated foam, and a resin sheet having good foaming properties, capable of exhibiting particularly excellent vibration-damping properties while being lightweight, and useful for recycling interlayer films for a laminated glass. The present invention also aims to provide a building material for housing including any of the foam, the laminated foam, and the resin sheet. Provide is a foam having a plurality of cells, the foam containing a polyvinyl acetal, a plasticizer, and a hydrogenated petroleum resin, the hydrogenated petroleum resin containing a compound having a softening point of 130° C. or higher.Type: ApplicationFiled: February 3, 2022Publication date: December 7, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yoshikazu MASUYAMA, Katsunori TAKAHASHI, Takanori HAMADA
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Publication number: 20230391048Abstract: The present invention provides a foam, a laminated foam, and a laminate that are capable of providing good walking comfort and exhibiting excellent vibration-damping properties while being lightweight and are also useful for recycling interlayer films for a laminated glass. The present invention also aims to provide a building material for housing including any of the foam, the laminated foam, and the laminate. Provided is a foam having a plurality of cells, the foam containing a polyvinyl acetal and a plasticizer and having an average aspect ratio (a/b) of cells of 1.1 or greater as calculated by a predetermined method.Type: ApplicationFiled: February 3, 2022Publication date: December 7, 2023Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yoshikazu MASUYAMA, Katsunori TAKAHASHI, Takanori HAMADA
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Patent number: 11692073Abstract: 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: GrantFiled: July 5, 2018Date of Patent: July 4, 2023Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Katsunori Takahashi, Kazuhiko Nakayama, Yoshikazu Masuyama, Juichi Fukatani, Tomohiro Hida
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Patent number: 11648352Abstract: A laminated gasket (13) to be used for a medical syringe is provided, which includes a main body (14) made of an elastic material, and a film (15) provided on a surface of the main body (14). The gasket (13) has a circumferential surface portion (17) to be brought into contact with an inner peripheral surface (16) of a syringe barrel (11) of the syringe. The gasket (13) further includes a projection (22) provided on a surface portion of the film (15) present in the circumferential surface portion (17) as extending circumferentially of the gasket. The projection (22) has a height of not less than 15 ?m and not greater than 55 ?m and a width of not less than 30 ?m and not greater than 75 ?m. With this arrangement, the laminated gasket is excellent in sealability.Type: GrantFiled: August 29, 2018Date of Patent: May 16, 2023Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Hiroaki Nakano, Yuki Sakashita, Yoshikazu Masuyama
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Patent number: 11642873Abstract: An interlayer film for laminated glass of the present invention is an interlayer film for laminated glass, comprising one or two or more resin layers, and comprising a first resin layer comprising a resin and a light diffusion particle, in which any resin layer in the interlayer film for laminated glass comprises a colorant.Type: GrantFiled: November 26, 2020Date of Patent: May 9, 2023Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Yoshikazu Masuyama, Yuusuke Oota, Kazuhiko Nakayama, Kazuhiro Tomura
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Publication number: 20220355580Abstract: An interlayer film for laminated glass of the present invention is an interlayer film for laminated glass comprising two or more resin layers, and comprising a first resin layer comprising a resin and a light diffusion particle and having a thickness of 150 ?m or less, in which a total light transmittance is less than 70%.Type: ApplicationFiled: November 26, 2020Publication date: November 10, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yoshikazu MASUYAMA, Yuusuke OOTA, Kazuhiko NAKAYAMA, Kazuhiro TOMURA
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Publication number: 20220347976Abstract: An interlayer film for laminated glass of the present invention is an interlayer film for laminated glass, comprising one or two or more resin layers, and comprising a first resin layer comprising a resin and a light diffusion particle, in which any resin layer in the interlayer film for laminated glass comprises a colorant.Type: ApplicationFiled: November 26, 2020Publication date: November 3, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yoshikazu MASUYAMA, Yuusuke OOTA, Kazuhiko NAKAYAMA, Kazuhiro TOMURA
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Patent number: 11458705Abstract: Provided is a laminated glass capable of preventing scorching in an end part of the laminated glass. A laminated glass according to the present invention is a laminated glass including a first glass plate, a second glass plate, and an interlayer film, at least one of the first glass plate and the second glass plate being a heat ray absorbing plate glass conforming to JIS R3208:1998, each of the first glass plate and the second glass plate having a thickness of 1.9 mm or less, when a layer having a lowest glass transition temperature in the interlayer film being referred to as a layer X, the layer X containing a thermoplastic resin, a ratio of a weight average molecular weight of the thermoplastic resin in the layer X before the light irradiation test, to a weight average molecular weight of the thermoplastic resin in the layer X after the light irradiation test being 2 or less.Type: GrantFiled: September 27, 2018Date of Patent: October 4, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Shougo Yoshida, Moyuru Okano, Atsushi Nohara, Yoshikazu Masuyama
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Patent number: 11440295Abstract: Provided is a laminated glass capable of preventing breakage in an end part of the laminated glass under external impact. A laminated glass according to the present invention is a laminated glass including a first glass plate, a second glass plate, and an interlayer film, the interlayer film being arranged between the first glass plate and the second glass plate, the laminated glass having a portion where a lateral surface of the interlayer film is exposed, and a ratio of a weight of broken glass pieces determined by a ball drop test in a laminated glass after a dipping-light irradiation test, to a weight of broken glass pieces determined by the ball drop test in a laminated glass not having undergone the dipping-light irradiation test being 2.5 or less.Type: GrantFiled: September 27, 2018Date of Patent: September 13, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Shougo Yoshida, Moyuru Okano, Yoshikazu Masuyama
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Publication number: 20220176682Abstract: An interlayer film (10) for laminated glass comprises an optical function layer (15) and a first thermoplastic resin layer (11) provided on one surface (15A) side of the optical function layer (15). The optical function layer (15) comprises a matrix polymer, a polymer of a photoreactive monomer, and a photopolymerization initiator. The first thermoplastic resin layer (11) comprises an ultraviolet ray absorber and has a transmittance at a wavelength of 400 nm of 20% or less.Type: ApplicationFiled: March 19, 2020Publication date: June 9, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Atsushi NOHARA, Yasuyuki IZU, Sho FUJIOKA, Yuusuke OOTA, Yoshikazu MASUYAMA
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Patent number: 11021593Abstract: There is provided a rubber composition for additive manufacturing that allows rubber shaped articles to be favorably produced using an additive manufacturing apparatus. The rubber composition for additive manufacturing of the present invention comprises a liquid rubber.Type: GrantFiled: January 11, 2017Date of Patent: June 1, 2021Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Hisao Yoshinaga, Takuro Akasaka, Yoshikazu Masuyama, Nami Masao
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Patent number: 10751473Abstract: A gasket (10) is used for a medical syringe (30), and includes a main body (11) made of an elastic material and an inert resin film (12) provided on a surface of the main body (11). The gasket (10) has a cylindrical shape, and includes a plurality of annular ribs (13, 14, 15) provided on an outer circumferential surface (20) thereof and each having a sliding contact portion (16) to be kept in sliding contact with an inner peripheral surface of a syringe barrel. The plurality of annular ribs are axially arranged from a distal end to a rear end of the gasket (10). The sliding contact portion (16) of a distal annular rib (13) has a width that is 1 to 25% of axial length of the cylindrical gasket.Type: GrantFiled: March 16, 2017Date of Patent: August 25, 2020Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Yoshikazu Masuyama, Hiroaki Nakano
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Publication number: 20200230921Abstract: Provided is a laminated glass capable of preventing scorching in an end part of the laminated glass. A laminated glass according to the present invention is a laminated glass including a first glass plate, a second glass plate, and an interlayer film, at least one of the first glass plate and the second glass plate being a heat ray absorbing plate glass conforming to JIS R3208:1998, each of the first glass plate and the second glass plate having a thickness of 1.9 mm or less, when a layer having a lowest glass transition temperature in the interlayer film being referred to as a layer X, the layer X containing a thermoplastic resin, a ratio of a weight average molecular weight of the thermoplastic resin in the layer X before the light irradiation test, to a weight average molecular weight of the thermoplastic resin in the layer X after the light irradiation test being 2 or less.Type: ApplicationFiled: September 27, 2018Publication date: July 23, 2020Inventors: Shougo Yoshida, Moyuru Okano, Atsushi Nohara, Yoshikazu Masuyama
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Publication number: 20200223190Abstract: Provided is a laminated glass capable of preventing breakage in an end part of the laminated glass under external impact. A laminated glass according to the present invention is a laminated glass including a first glass plate, a second glass plate, and an interlayer film, the interlayer film being arranged between the first glass plate and the second glass plate, the laminated glass having a portion where a lateral surface of the interlayer film is exposed, and a ratio of a weight of broken glass pieces determined by a ball drop test in a laminated glass after a dipping-light irradiation test, to a weight of broken glass pieces determined by the ball drop test in a laminated glass not having undergone the dipping-light irradiation test being 2.5 or less.Type: ApplicationFiled: September 27, 2018Publication date: July 16, 2020Inventors: Shougo Yoshida, Moyuru Okano, Yoshikazu Masuyama
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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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Patent number: 10363371Abstract: A laminated gasket (13) to be used for a medical syringe is provided, which includes a main body (14) made of an elastic material, and a film (15) provided on a surface of the main body (14). The gasket (13) has a circumferential surface portion (17) to be brought into contact with an inner peripheral surface (16) of a syringe barrel (11) of the syringe. The gasket (13) further includes a projection (22) provided on a surface portion of the film (15) present in the circumferential surface portion (17) as extending circumferentially of the gasket. The projection (22) has a height of not less than 15 ?m and not greater than 55 ?m and a width of not less than 30 ?m and not greater than 75 ?m. With this arrangement, the laminated gasket is excellent in sealability.Type: GrantFiled: July 3, 2017Date of Patent: July 30, 2019Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Hiroaki Nakano, Yuki Sakashita, Yoshikazu Masuyama
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Patent number: 10285905Abstract: The present invention aims to provide a medical rubber stopper that is excellent in chemical resistance and airtightness while having good productivity. The present invention relates to a medical rubber stopper including: a disk-shaped head portion with a flange region; and a cylindrical leg portion protruding from the lower surface of the head portion and having a smaller diameter than the head portion, the lower surface of the flange region and the leg portion being laminated with an inert film, the lower surface of the flange region and/or the outer periphery of the leg portion being provided with an annular groove through which the base rubber is exposed.Type: GrantFiled: April 13, 2017Date of Patent: May 14, 2019Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Yoshikazu Masuyama, Hiroaki Nakano
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Publication number: 20190010311Abstract: There is provided a rubber composition for additive manufacturing that allows rubber shaped articles to be favorably produced using an additive manufacturing apparatus. The rubber composition for additive manufacturing of the present invention comprises a liquid rubber.Type: ApplicationFiled: January 11, 2017Publication date: January 10, 2019Applicant: SUMITOMO RUBBER INDUSTRIES LTD.Inventors: Hisao YOSHINAGA, Takuro AKASAKA, Yoshikazu MASUYAMA, Nami MASAO
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Patent number: D990173Type: GrantFiled: October 22, 2021Date of Patent: June 27, 2023Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Yoshikazu Masuyama, Katsunori Takahashi, Takanori Hamada, Kinryou Chou