Patents by Inventor Ryousuke Komatsu
Ryousuke Komatsu 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: 11274200Abstract: There is provided an interlayer film for laminated glass with which the transparency can be enhanced. The interlayer film for laminated glass according to the present invention is in a sea-island state having a sea-like dark part and a plurality of island-like bright parts to be identified when observed with a transmission electron microscope, a thermoplastic resin is contained in the dark part region and a thermoplastic resin is contained in the bright part region, and the arithmetic average value of major diameters of the bright parts is less than or equal to 400 nm or the median value of major diameters of the bright parts is less than or equal to 400 nm.Type: GrantFiled: May 12, 2020Date of Patent: March 15, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Ryousuke Komatsu, Jun Sasaki, Tatsuya Iwamoto
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Publication number: 20200269550Abstract: There is provided an interlayer film for laminated glass with which the transparency can be enhanced. The interlayer film for laminated glass according to the present invention is in a sea-island state having a sea-like dark part and a plurality of island-like bright parts to be identified when observed with a transmission electron microscope, a thermoplastic resin is contained in the dark part region and a thermoplastic resin is contained in the bright part region, and the arithmetic average value of major diameters of the bright parts is less than or equal to 400 nm or the median value of major diameters of the bright parts is less than or equal to 400 nm.Type: ApplicationFiled: May 12, 2020Publication date: August 27, 2020Inventors: Ryousuke Komatsu, Jun Sasaki, Tatsuya Iwamoto
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Patent number: 9821535Abstract: There is provided an interlayer film for laminated glass which is capable of enhancing sound insulating properties in the laminated glass obtained in the case of being used for constituting the laminated glass, and laminated glass prepared using the interlayer film for laminated glass. An interlayer film for laminated glass according to the present invention includes a modified polyvinyl acetate and a plasticizer, and the modified polyvinyl acetate has a vinyl acetate structural unit and a fatty acid vinyl ester structural unit; the laminated glass according to the present invention includes a first laminated glass constituent member, a second laminated glass constituent member, and an interlayer film sandwiched between the first and second laminated glass constituent members, and in the laminated glass according to the present invention, the interlayer film is the interlayer film for laminated glass described above.Type: GrantFiled: October 31, 2013Date of Patent: November 21, 2017Assignees: SEKISUI CHEMICAL CO., LTD., DENKI KAGAKU KOGYO KABUSHIKI KAISHAInventors: Michio Shimamoto, Tatsuya Iwamoto, Ryousuke Komatsu, Shougo Yoshida, Nobuyuki Tanno, Takao Hashimoto, Hirohisa Otake
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Publication number: 20160376413Abstract: There is provided an interlayer film for laminated glass with which excessive adhesion against an interlayer film or the like can be suppressed and the transparency can be enhanced. The interlayer film for laminated glass according to the present invention is obtained by mixing a first composition containing a first thermoplastic resin having a hydroxyl group and a plasticizer and a second composition containing a second thermoplastic resin having a hydroxyl group and a plasticizer, satisfies the content ratio of the hydroxyl group of the first thermoplastic resin to be higher than the content ratio of the hydroxyl group of the second thermoplastic resin, and satisfies the ratio of the complex viscosity at 200° C. of the second composition to the complex viscosity at 200° C. of the first composition to be less than 4.5.Type: ApplicationFiled: February 20, 2015Publication date: December 29, 2016Applicant: Sekisui Chemical Co., Ltd.Inventors: Jun Sasaki, Ryousuke Komatsu, Tatsuya Iwamoto
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Publication number: 20160347035Abstract: There is provided an interlayer film for laminated glass with which the transparency can be enhanced. The interlayer film for laminated glass according to the present invention is in a sea-island state having a sea-like dark part and a plurality of island-like bright parts to be identified when observed with a transmission electron microscope, a thermoplastic resin is contained in the dark part region and a thermoplastic resin is contained in the bright part region, and the arithmetic average value of major diameters of the bright parts is less than or equal to 400 nm or the median value of major diameters of the bright parts is less than or equal to 400 nm.Type: ApplicationFiled: February 20, 2015Publication date: December 1, 2016Inventors: Ryousuke KOMATSU, Jun SASAKI, Tatsuya IWAMOTO
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Publication number: 20150258751Abstract: There is provided an interlayer film for laminated glass which is capable of enhancing sound insulating properties in the laminated glass obtained in the case of being used for constituting the laminated glass, and laminated glass prepared using the interlayer film for laminated glass. An interlayer film for laminated glass according to the present invention includes a modified polyvinyl acetate and a plasticizer, and the modified polyvinyl acetate has a vinyl acetate structural unit and a fatty acid vinyl ester structural unit; the laminated glass according to the present invention includes a first laminated glass constituent member, a second laminated glass constituent member, and an interlayer film sandwiched between the first and second laminated glass constituent members, and in the laminated glass according to the present invention, the interlayer film is the interlayer film for laminated glass described above.Type: ApplicationFiled: October 31, 2013Publication date: September 17, 2015Inventors: Michio Shimamoto, Tatsuya Iwamoto, Ryousuke Komatsu, Shougo Yoshida, Nobuyuki Tanno, Takao Hashimoto, Hirohisa Otake
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Patent number: 8753747Abstract: The present invention provides an interlayer film for a laminated glass capable of suppressing bubble formation and bubble growth even if the laminated glass is exposed to relatively high temperatures for a long time. An interlayer film for a laminated glass according to the present invention includes a first layer and a second layer laminated on one face of the first layer, each of the first layer and the second layer contains a polyvinyl acetal resin and a plasticizer, and in the case of measuring the viscoelasticity of the first layer as a resin film (glass transition temperature: Tg(° C.)), or the viscoelasticity of a resin film (glass transition temperature: Tg(° C.)) containing 100 parts by weight the polyvinyl acetal resin in the first layer and 60 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO) as a plasticizer, the resin film has an elastic modulus of G?(Tg+170) at (Tg+170)° C. and an elastic modulus of G?(Tg+30) at (Tg+30)° C., and provides a ratio (G?(Tg+170)/G?(Tg+30)) of 0.Type: GrantFiled: December 28, 2011Date of Patent: June 17, 2014Assignee: Sekisui Chemical Co., Ltd.Inventors: Tatsuya Iwamoto, Ryousuke Komatsu, Kohei Kani, Shogo Yoshida
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Publication number: 20130273378Abstract: The present invention provides an interlayer film for a laminated glass which can suppress bubble formation and bubble growth in the laminated glass. An interlayer film for a laminated glass according to the present invention includes a first layer and a second layer laminated on one face of the first layer, each of the first layer and the second layer contains a polyvinyl acetal resin, contains a carboxylic acid-modified polyvinyl acetal resin, or contains both a polyvinyl acetal resin and a carboxylic acid-modified polyvinyl acetal resin, each of the first layer and the second layer contains a plasticizer, and when the first layer does not contain the carboxylic acid-modified polyvinyl acetal resin, the first layer contains a compound having a boron atom.Type: ApplicationFiled: December 28, 2011Publication date: October 17, 2013Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Tatsuya Iwamoto, Ryousuke Komatsu, Kohei Kani, Shogo Yoshida
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Publication number: 20130273379Abstract: The present invention provides an interlayer film for a laminated glass capable of suppressing bubble formation and bubble growth even if the laminated glass is exposed to relatively high temperatures for a long time. An interlayer film for a laminated glass according to the present invention includes a first layer and a second layer laminated on one face of the first layer, each of the first layer and the second layer contains a polyvinyl acetal resin and a plasticizer, and in the case of measuring the viscoelasticity of the first layer as a resin film (glass transition temperature: Tg(° C.)), or the viscoelasticity of a resin film (glass transition temperature: Tg(° C.)) containing 100 parts by weight the polyvinyl acetal resin in the first layer and 60 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO) as a plasticizer, the resin film has an elastic modulus of G?(Tg+170) at (Tg+170)° C. and an elastic modulus of G?(Tg+30) at (Tg+30)° C., and provides a ratio (G?(Tg+170)/G?(Tg+30)) of 0.Type: ApplicationFiled: December 28, 2011Publication date: October 17, 2013Inventors: Tatsuya Iwamoto, Ryousuke Komatsu, Kohei Kani, Shogo Yoshida