Patents by Inventor Yuhei Konokawa

Yuhei Konokawa 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).

  • Patent number: 10131120
    Abstract: A transparent laminated film is described, which has excellent chemical resistance and surface hardness, is glossy even after heating and which has a low haze value, and a laminated molded article that uses the film.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: November 20, 2018
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Koichiro Sanefuji, Yuhei Konokawa, Yoshinori Abe
  • Publication number: 20160200884
    Abstract: The present invention relates to a film which comprises a resin composition comprising an acrylic resin (A) and a vinylidene fluoride resin (B), wherein the acrylic resin (A) is composed of an acrylic monomer (a-1) unit and an ultraviolet ray absorbing monomer (a-2) unit, and the ratio of the amount of the ultraviolet ray absorbing monomer (a-2) unit in the acrylic resin (A) to the total mass of all of monomer units in the acrylic resin (A) is 4 to 25 mass %, According to the present invention, it becomes possible to provide a film which comprises a vinylidene fluoride resin, can maintain a high total light transmittance and a low haze value for a long period, and has excellent ultraviolet ray blocking performance.
    Type: Application
    Filed: August 12, 2014
    Publication date: July 14, 2016
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventor: Yuhei KONOKAWA
  • Publication number: 20150368414
    Abstract: An acrylic resin film which contains a polymer (A1) that is obtained by polymerizing a monomer component that contains 10-100% by mass of i-butyl methacrylate is described, where the acrylic resin film has excellent light transmittance, while exhibiting excellent adhesion to a polyolefin resin. A solar cell module which uses the acrylic resin film is also described.
    Type: Application
    Filed: October 17, 2013
    Publication date: December 24, 2015
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Yuji Kawaguchi, Yuhei Konokawa
  • Publication number: 20150144194
    Abstract: A solar cell module is provided with a solar cell, a sealing member embedding the solar cell therein, a front surface protective member, and a back surface protective member. The storage modulus of the sealing member for the temperature range of 20-40° C. is from 6×107 Pa to 1×109 Pa (inclusive), and the average linear expansion coefficient, which is the average of linear expansion coefficients in the length direction and in the width direction when the temperature of the back surface protective member is changed from 20° C. to 25° C., is 40 ppm/° C. or less. A solar cell protective sheet is a laminate wherein an adhesive layer contains a (meth)acrylic polymer including functional groups reactive with carboxyl groups is laminated on the surface of a transparent resin sheet formed from at least one light-transmitting resin material selected from (meth)acrylic resins, polycarbonate resins and fluororesins.
    Type: Application
    Filed: June 28, 2013
    Publication date: May 28, 2015
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Taira Kajisa, Ayaka Kuwahara, Haruko Ootsuki, Fumiko Fujie, Yuhei Konokawa
  • Publication number: 20140342162
    Abstract: A transparent laminated film is described, which has excellent chemical resistance and surface hardness, is glossy even after heating and which has a low haze value, and a laminated molded article that uses the film.
    Type: Application
    Filed: September 12, 2012
    Publication date: November 20, 2014
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Koichiro Sanefuji, Yuhei Konokawa, Yoshinori Abe
  • Patent number: 8642159
    Abstract: Provided is a film having high crystallinity, transparency, and surface smoothness, a lamination of the film, a sheet of the film, and a laminated body. A film contains vinylidene fluoride-based resin (A) and acrylic-based resin (B). The film has at least one surface with arithmetic mean roughness of 0.1 to 20 nm. The at least one surface has crystal fusion heat of 18 to 40 J/g and a haze value of 3.5 or less, the crystal fusion heat being measured using a differential scanning calorimeter.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: February 4, 2014
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yuhei Konokawa, Yoshinori Abe
  • Publication number: 20130202847
    Abstract: Provided is a film having high crystallinity, transparency, and surface smoothness, a lamination of the film, a sheet of the film, and a laminated body. A film contains vinylidene fluoride-based resin (A) and acrylic-based resin (B). The film has at least one surface with arithmetic mean roughness of 0.1 to 20 nm. The at least one surface has crystal fusion heat of 18 to 40 J/g and a haze value of 3.5 or less, the crystal fusion heat being measured using a differential scanning calorimeter.
    Type: Application
    Filed: May 13, 2010
    Publication date: August 8, 2013
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Yuhei Konokawa, Yoshinori Abe