Patents by Inventor Yusuke Kamata

Yusuke Kamata 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: 9423638
    Abstract: A thin display unit that incorporates a high-luminance, high-contrast display part that is free of image detects caused by the deformation of the display part is provided. The display unit of the present invention includes an image display part 2 and a light-transmitting protective part 3 arranged on the image display part 2. A cured resin layer 5 is arranged between the display part 2 and the protective part 3. The cured resin layer 5 has a transmittance of 90% or higher in the visible range and a storage modulus at 25° C. of 1×107 Pa or less. The cured resin layer 5 is formed from a resin composition that has a cure shrinkage of 5% or less.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: August 23, 2016
    Assignee: DEXERIALS CORPORATION
    Inventors: Yoshihisa Shinya, Yusuke Kamata
  • Patent number: 9354462
    Abstract: A method for manufacturing an image display device includes the step of forming a cured resin layer by interposing a photo-curable resin composition between a protection member and a display-side panel including an image display unit and a frame member and then photo-curing the photo-curable resin composition, with the photo-curable resin composition being disposed across between the image display unit and the frame member. In the manufacturing method, a high-viscosity resin composition having a viscosity of 3000 mPa·s or more and 12000 mPa·s or less is used as the photo-curable resin composition. Alternatively, after a gap between the image display unit and the frame member is sealed with a sealing film, a photo-curable resin composition is interposed between the display-side panel and the protection member.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: May 31, 2016
    Assignee: DEXERIALS CORPORATION
    Inventors: Tomoyuki Toyoda, Yoshihisa Shinya, Yusuke Kamata
  • Patent number: 9348062
    Abstract: A method for manufacturing an image display device includes the step of forming a cured resin layer by interposing a photo-curable resin composition between a protection member and a display-side panel including an image display unit and a frame member and then photo-curing the photo-curable resin composition, with the photo-curable resin composition being disposed across between the image display unit and the frame member. In the manufacturing method, a high-viscosity resin composition having a viscosity of 3000 mPa·s or more and 12000 mPa·s or less is used as the photo-curable resin composition. Alternatively, after a gap between the image display unit and the frame member is sealed with a sealing film, a photo-curable resin composition is interposed between the display-side panel and the protection member.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: May 24, 2016
    Assignee: DEXERIALS CORPORATION
    Inventors: Tomoyuki Toyoda, Yoshihisa Shinya, Yusuke Kamata
  • Publication number: 20160116789
    Abstract: A method for manufacturing an image display device includes the step of forming a cured resin layer by interposing a photo-curable resin composition between a protection member and a display-side panel including an image display unit and a frame member and then photo-curing the photo-curable resin composition, with the photo-curable resin composition being disposed across between the image display unit and the frame member. In the manufacturing method, a high-viscosity resin composition having a viscosity of 3000 mPa·s or more and 12000 mPa·s or less is used as the photo-curable resin composition. Alternatively, after a gap between the image display unit and the frame member is sealed with a sealing film, a photo-curable resin composition is interposed between the display-side panel and the protection member.
    Type: Application
    Filed: January 4, 2016
    Publication date: April 28, 2016
    Applicant: DEXERIALS CORPORATION
    Inventors: Tomoyuki Toyoda, Yoshihisa SHINYA, Yusuke KAMATA
  • Patent number: 9279911
    Abstract: A method for manufacturing an image display device includes the step of forming a cured resin layer by interposing a photo-curable resin composition between a protection member and a display-side panel including an image display unit and a frame member and then photo-curing the photo-curable resin composition, with the photo-curable resin composition being disposed across between the image display unit and the frame member. In the manufacturing method, a high-viscosity resin composition having a viscosity of 3000 mPa·s or more and 12000 mPa·s or less is used as the photo-curable resin composition. Alternatively, after a gap between the image display unit and the frame member is sealed with a sealing film, a photo-curable resin composition is interposed between the display-side panel and the protection member.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: March 8, 2016
    Assignee: DEXERIALS CORPORATION
    Inventors: Tomoyuki Toyoda, Yoshihisa Shinya, Yusuke Kamata
  • Publication number: 20160011454
    Abstract: An image display device, and a production method thereof are provided, which maximize suppression of warping of a protective panel. A liquid crystal display panel and a transparent protective panel formed from a plastic are arranged facing each other via a cured resin. An outer dimension of the protective panel is made larger than an outer dimension of the display panel. Curing is carried out with an edge of the protective panel fixed with a fixing jig during and after curing. Alternatively, the outer dimension of the protective panel is substantially equal to an outer dimension of the display panel, which is substantially equal to an inner dimension of a case and the protective panel. Curing is carried out with the resin composition in contact with substantially the whole face of the protective panel.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 14, 2016
    Applicant: DEXIRIALS CORPORATION
    Inventors: Tomoyuki TOYODA, Yoshihisa SHINYA, Yusuke KAMATA
  • Publication number: 20150253598
    Abstract: A thin image display device is provided which is free from display defects caused by the deformation of an image display part and can display high brightness and high contrast images. The image display device includes an image display part 2, a light-transmitting protective part 3 arranged on the image display part, and a cured resin layer 5 interposed between the image display part 2 and the protective part 3. The cured resin layer 5 has a light transmittance in the visible region of 90% or more and a refractive index (nD) of 1.45 or more and 1.55 or less.
    Type: Application
    Filed: May 26, 2015
    Publication date: September 10, 2015
    Inventors: Yoshihisa SHINYA, Yusuke KAMATA
  • Publication number: 20140329431
    Abstract: A display unit that includes an image display part and a light-transmitting protective part arranged on the image display part. A cured resin layer is arranged between the display part and the protective part. The cured resin layer has a transmittance of 90% or higher in the visible range and a storage modulus at 25° C. of 1×107 Pa or less. The cured resin layer is formed from a resin composition that has a cure shrinkage of 5% or less.
    Type: Application
    Filed: July 15, 2014
    Publication date: November 6, 2014
    Applicant: Dexerials Corporation
    Inventors: Yoshihisa SHINYA, Yusuke KAMATA
  • Publication number: 20140287153
    Abstract: A method for manufacturing an image display device includes the step of forming a cured resin layer by interposing a photo-curable resin composition between a protection member and a display-side panel including an image display unit and a frame member and then photo-curing the photo-curable resin composition, with the photo-curable resin composition being disposed across between the image display unit and the frame member. In the manufacturing method, a high-viscosity resin composition having a viscosity of 3000 mPa·s or more and 12000 mPa·s or less is used as the photo-curable resin composition. Alternatively, after a gap between the image display unit and the frame member is sealed with a sealing film, a photo-curable resin composition is interposed between the display-side panel and the protection member.
    Type: Application
    Filed: June 9, 2014
    Publication date: September 25, 2014
    Applicant: DEXERIALS CORPORATION
    Inventors: Tomoyuki TOYODA, Yoshihisa SHINYA, Yusuke KAMATA
  • Publication number: 20140256207
    Abstract: An image display device, and a production method thereof are provided, which maximize suppression of warping of a protective panel. A liquid crystal display panel and a transparent protective panel formed from a plastic are arranged facing each other via a cured resin. An outer dimension of the protective panel is made larger than an outer dimension of the display panel. Curing is carried out with an edge of the protective panel fixed with a fixing jig during and after curing. Alternatively, the outer dimension of the protective panel is substantially equal to an outer dimension of the display panel, which is substantially equal to an inner dimension of a case and the protective panel. Curing is carried out with the resin composition in contact with substantially the whole face of the protective panel.
    Type: Application
    Filed: April 24, 2014
    Publication date: September 11, 2014
    Applicant: DEXERIALS CORPORATION
    Inventors: Tomoyuki TOYODA, Yoshihisa SHINYA, Yusuke KAMATA
  • Patent number: 8821966
    Abstract: A method for manufacturing an image display device includes the step of forming a cured resin layer by interposing a photo-curable resin composition between a protection member and a display-side panel including an image display unit and a frame member and then photo-curing the photo-curable resin composition, with the photo-curable resin composition being disposed across between the image display unit and the frame member. In the manufacturing method, a high-viscosity resin composition having a viscosity of 3000 mPa·s or more and 12000 mPa·s or less is used as the photo-curable resin composition. Alternatively, after a gap between the image display unit and the frame member is sealed with a sealing film, a photo-curable resin composition is interposed between the display-side panel and the protection member.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: September 2, 2014
    Assignee: Dexerials Corporation
    Inventors: Tomoyuki Toyoda, Yoshihisa Shinya, Yusuke Kamata
  • Patent number: 8773624
    Abstract: A thin image display apparatus capable of high luminance and high contrast display of a display part, which does not produce display defects resulting from deformation of the image display part. The thin image display apparatus has an image display part and a light-transmitting protective part arranged on the image display part. A cured resin layer is arranged between the image display part and the protective part. The cured resin layer has a transmittance in the visible region of 90% or higher and a storage modulus at 25° C. of 1.0×107 Pa or less. The cured resin layer is formed from a resin composition which has a curing shrinkage ratio of 5.0% or less.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: July 8, 2014
    Assignee: Sony Chemical & Information Device Corporation
    Inventors: Yoshihisa Shinya, Yusuke Kamata
  • Patent number: 8670094
    Abstract: A thin image display apparatus capable of high luminance and high contrast display of a display part, which does not produce display defects resulting from deformation of the image display part. The thin image display apparatus has an image display part and a light-transmitting protective part arranged on the image display part. A cured resin layer is arranged between the image display part and the protective part. The cured resin layer has a transmittance in the visible region of 90% or higher and a storage modulus at 25° C. of 1.0×107 Pa or less. The cured resin layer is formed from a resin composition which has a curing shrinkage ratio of 5.0% or less.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: March 11, 2014
    Assignee: Sony Chemical & Information Device Corporation
    Inventors: Yoshihisa Shinya, Yusuke Kamata
  • Patent number: 8432516
    Abstract: An image display device has an image display part and a protective part on the image display part. The image display device suppresses image unevenness and cured resin peeling caused by internal stress generated due to curing shrinkage of a cured resin between the protective part and the image display part or external stress applied on the image display part due to warping of the protective part. A cured resin layer is arranged between the image display part and the protective part. The cured resin layer has a light transmittance in the visible region of 90% or more, an elongation ratio of 700% or more at 25° C. and 400% or more at 80° C., and an adhesive force with respect to the protective part of 0.4 N/cm or more at 25° C. and 0.3 N/cm or more at 80° C.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: April 30, 2013
    Assignee: Sony Chemical & Information Device Corporation
    Inventors: Tomoyuki Toyoda, Yoshihisa Shinya, Yusuke Kamata
  • Publication number: 20120118483
    Abstract: A method for producing a display device includes: (a) coating a resin composition on at least one of a display part and a protective part, (b) closely adhering the display and protective parts via a resin composition interposed therebetween, and (c) arranging the cured resin layer between the display and protective parts by curing the resin composition by irradiating UV rays on an external side of the protective part. If a defect is detected, the method includes: (d) separating the display and protective parts by applying a wire to a side face of the cured resin layer where the protective and display parts are bonded and moving the wire through the cured resin layer, (e) peeling off and removing the cured resin adhered to the separated display and protective parts by a removing solution which contains an organic solvent, and (f) repeating steps (a) to (c).
    Type: Application
    Filed: December 21, 2011
    Publication date: May 17, 2012
    Applicant: SONY CHEMICAL & INFORMATION DEVICE CORPORATION
    Inventors: Tomoyuki TOYODA, Tsutomu DEJIMA, Yoshihisa SHINYA, Yusuke KAMATA
  • Patent number: 8152945
    Abstract: A method for producing a display device includes: (A) coating a resin composition, which is a raw material of the cured resin, on at least one of the display part or the protective part, (B) closely attaching the display part and the protective part via the resin composition, and (C) arranging the cured resin layer between the display part and the protective part by curing the resin composition by irradiating UV rays from external side of the protective part. After (B), if there is any defect in the resin composition layer, the method further includes (b1) separating the display part and the protective part, and (b2) peeling and removing the resin composition adhered to the separated display part and the separated protective part by a removing solution which contains an organic solvent.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: April 10, 2012
    Assignee: Sony Chemical & Information Device Corporation
    Inventors: Tomoyuki Toyoda, Yasumi Endo, Yoshihisa Shinya, Yusuke Kamata
  • Patent number: 8152947
    Abstract: A method for producing a display device includes: (a) coating a resin composition on at least one of a display part and a protective part, (b) closely adhering the display and protective parts via a resin composition interposed therebetween, and (c) arranging the cured resin layer between the display and protective parts by curing the resin composition by irradiating UV rays on an external side of the protective part. If a defect is detected, the method includes: (d) separating the display and protective parts by applying a wire to a side face of the cured resin layer where the protective and display parts are bonded and moving the wire through the cured resin layer, (e) peeling off and removing the cured resin adhered to the separated display and protective parts by a removing solution which contains an organic solvent, and (f) repeating steps (a) to (c).
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: April 10, 2012
    Assignee: Sony Chemical & Information Device Corporation
    Inventors: Tomoyuki Toyoda, Tsutomu Dejima, Yoshihisa Shinya, Yusuke Kamata
  • Patent number: 8087967
    Abstract: Manufacture a highly reliable image display device capable of proceeding with resin cure even in the case where a protective panel is provided with a light shielding portion. A liquid crystal display unit 2 having a liquid crystal display panel 8 and a light transmissive protective panel 3 having a light shielding portion 5 are disposed face to face, a resin composition 10 is interposed between the liquid crystal display unit and the protective panel, and the resin composition is cured into a cured resin layer 11. As the resin composition 10, a light-heat-curing resin composition and containing a photopolymerization initiator and organic peroxide of thermal polymerization initiator is used. In curing the resin composition 10, cure by light (ultraviolet rays) irradiation is performed until a cure ratio of the resin composition becomes 30% or more and thereafter thermal cure is performed.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: January 3, 2012
    Assignee: Sony Chemical & Information Device Corporation
    Inventors: Yoshihisa Shinya, Kenji Kamiya, Yusuke Kamata
  • Patent number: 7927533
    Abstract: A thin image display device having a resin interposed between an image display unit and a protection member having a light-shielding member is manufactured. In the manufactured image display device, display defects caused by the deformation of the image display unit do not occur, and high-brightness and high-contrast display can be achieved. In addition, the resin in the area where the light-shielding member is formed can be sufficiently cured. The method for manufacturing an image display device includes the step of forming a cured resin layer by interposing a photo-curable resin composition between a base including the image display unit and a light-transmitting protection member including a light-shielding member and then photo-curing the photo-curable resin composition. In this method, a resin composition having a curing shrinkage ratio of 5% or less, yielding a cured product having a storage elastic modulus at 25° C. of 1.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: April 19, 2011
    Assignee: Sony Chemical & Information Device Corporation
    Inventors: Kenji Kamiya, Yoshihisa Shinya, Yusuke Kamata
  • Patent number: 7910033
    Abstract: A method for manufacturing an image display device includes the step of forming a cured resin layer 15 by interposing a photo-curable resin composition between a base 2 including an image display unit such as a liquid crystal display panel 8 and a light-transmitting protection member 3 including a light-shielding member 5 and then photo-curing the photo-curable resin composition. In this method, a resin composition having a curing shrinkage ratio of 5% or less, yielding a cured product having a storage elastic modulus at 25° C. of 1.0×107 Pa or less, and forming the cured resin layer having a light transmittance of 90% or more in the visible range is used as the photo-curable resin composition.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: March 22, 2011
    Assignee: Sony Chemical & Information Device Corporation
    Inventors: Yusuke Kamata, Yoshihisa Shinya