Patents by Inventor Takao Sumida

Takao Sumida 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: 10816837
    Abstract: A display device of the disclosure includes: a display panel; a decorative member that holds the display panel; and a light guide plate that has rigidity and includes an edge surface attached to the decorative member.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: October 27, 2020
    Assignee: Saturn Licensing LLC
    Inventors: Takeshi Yamamoto, Soya Araki, Takao Sumida, Tomoyuki Yoshimatsu
  • Patent number: 10502891
    Abstract: A display device includes a display panel and an illumination section that illuminates the display panel. The illumination section includes: a light guide plate having a first surface and a second surface facing each other; a light source facing an end surface of the light guide plate; an adhesive layer formed adjacent to the first surface of the light guide plate and having substantially the same refractive index as a refractive index of the light guide plate; and a light reflection layer bonded to the first surface of the light guide plate with at least the adhesive layer in between.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: December 10, 2019
    Assignee: Sony Corporation
    Inventors: Soya Araki, Takao Sumida, Takeshi Yamamoto, Tomoyuki Yoshimatsu
  • Publication number: 20170227806
    Abstract: A display device of the disclosure includes: a display panel; a decorative member that holds the display panel; and a light guide plate that has rigidity and includes an edge surface attached to the decorative member.
    Type: Application
    Filed: July 6, 2015
    Publication date: August 10, 2017
    Applicant: Sony Corporation
    Inventors: Takeshi Yamamoto, Soya Araki, Takao Sumida, Tomoyuki Yoshimatsu
  • Publication number: 20170227705
    Abstract: A display device includes a display panel and an illumination section that illuminates the display panel. The illumination section includes: a light guide plate having a first surface and a second surface facing each other; a light source facing an end surface of the light guide plate; an adhesive layer formed adjacent to the first surface of the light guide plate and having substantially the same refractive index as a refractive index of the light guide plate; and a light reflection layer bonded to the first surface of the light guide plate with at least the adhesive layer in between.
    Type: Application
    Filed: July 8, 2015
    Publication date: August 10, 2017
    Applicant: Sony Corporation
    Inventors: Soya Araki, Takao Sumida, Takeshi Yamamoto, Tomoyuki Yoshimatsu
  • Publication number: 20140300710
    Abstract: There is provided a display unit that achieves more favorable image. This display unit includes: an illumination unit including a light-guiding plate; and a display section adhered to the light-guiding plate to face the light-guiding plate, and performing image display by utilizing light from the light-guiding plate. The light-guiding plate has first and second internal reflection surfaces facing each other. At least one of the first and second internal reflection surfaces is provided with a plurality of scattering regions that scatter first illumination light from outside and allow scattered light travelling from the first internal reflection surface towards the display section to be emitted.
    Type: Application
    Filed: October 12, 2012
    Publication date: October 9, 2014
    Applicant: Sony Corporation
    Inventors: Masaki Shinoda, Kouta Okabe, Takao Sumida
  • Patent number: 7554729
    Abstract: A rear projection display apparatus is provided which includes a transmission type screen installed on the front face of an apparatus main body, and a video projector disposed inside the apparatus main body and projecting video on the transmission type screen from the rear side thereof. The transmission type screen includes a lens sheet having respective ribs attached to upper and lower sides thereof, the ribs having increased thickness, and an upper bracket and a lower bracket attached to the lens sheet so as to retainably embrace the respective associated ribs. The upper bracket is fixed to a frame on an apparatus main body side, whereby the lens sheet is installed so as to be pulled downward by the weight of the lower bracket. The rib is formed by laminating the same materials as a substrate of the lens sheet.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: June 30, 2009
    Assignee: Sony Corporation
    Inventors: Takao Sumida, Takaaki Iwaki
  • Publication number: 20070206161
    Abstract: A rear projection display apparatus is provided which includes a transmission type screen installed on the front face of an apparatus main body, and a video projector disposed inside the apparatus main body and projecting video on the transmission type screen from the rear side thereof. The transmission type screen includes a lens sheet having respective ribs attached to upper and lower sides thereof, the ribs having increased thickness, and an upper bracket and a lower bracket attached to the lens sheet so as to retainably embrace the respective associated ribs. The upper bracket is fixed to a frame on an apparatus main body side, whereby the lens sheet is installed so as to be pulled downward by the weight of the lower bracket. The rib is formed by laminating the same materials as a substrate of the lens sheet.
    Type: Application
    Filed: February 16, 2007
    Publication date: September 6, 2007
    Inventors: Takao Sumida, Takaaki Iwaki
  • Patent number: 6784608
    Abstract: A light-absorptive antireflection film comprising a light-absorptive film formed on a glass substrate containing pigment microparticles and having a physical thickness of not less than 10 nm and an antireflection multilayer film attenuating reflected light of incident light by interference of light, wherein at least one layer of the antireflection multilayer film is an electroconductive thin film having a surface resistance of not more than 1000 &OHgr;/□, and a display device including the same and methods of producing them.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: August 31, 2004
    Assignee: Sony Corporation
    Inventors: Soya Araki, Takao Sumida, Masataka Yamashita, Hiroko Funahashi
  • Patent number: 6628065
    Abstract: The present invention relates to an anti-reflection member and a display. The anti-reflection member includes a light transmittable substrate and an anti-reflection film. The anti-reflection film includes a first film formed from a light transmittable material, a second film formed from a light absorptive material having an electrical conductivity, a third film formed from a light transmittable material, a fourth film formed from a light transmittable material having an electrical conductivity, a fifth film formed from a light transmittable material having a high refractive index, and a sixth film formed from a light transmittable material. The anti-reflection member can prevent reflection of not only light coming from the first film side but also light coming from the sixth film side, thereby preventing an image from being doubly displayed on a screen.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: September 30, 2003
    Assignee: Sony Corporation
    Inventors: Soya Araki, Takao Sumida
  • Publication number: 20020047509
    Abstract: The present invention relates to an anti-reflection member and a display. The anti-reflection member includes a light transmittable substrate and an anti-reflection film. The anti-reflection film includes a first film formed from a light transmittable material, a second film formed from a light absorptive material having an electrical conductivity, a third film formed from a light transmittable material, a fourth film formed from a light transmittable material having an electrical conductivity, a fifth film formed from a light transmittable material having a high refractive index, and a sixth film formed from a light transmittable material. The anti-reflection member can prevent reflection of not only light coming from the first film side but also light coming from the sixth film side, to thereby prevent an image from being doubly displayed on a screen.
    Type: Application
    Filed: October 19, 2001
    Publication date: April 25, 2002
    Inventors: Soya Araki, Takao Sumida
  • Publication number: 20020018887
    Abstract: A light absorption/anti-reflection material member of the present invention comprises a light absorption film that is formed on a base member and contains pigment fine particles and high-refractive-index fine particles and an anti-reflection multi-layer film that is formed on the light absorption film as having a multi-layer structure and at least one layer of that consists of an electrically conductive thin film so as to attenuate, due to optical interference, a reflected light outgoing following the impingement of a relevant incident light. Also, a display apparatus is constructed wherein the light absorption/anti-reflection material member is formed as an anti-reflection film on the outer surface of the panel thereof.
    Type: Application
    Filed: August 7, 2001
    Publication date: February 14, 2002
    Inventors: Takao Sumida, Hiroko Funahashi, Soya Araki
  • Publication number: 20010006324
    Abstract: A light-absorptive antireflection film comprising a light-absorptive film formed on a glass substrate containing pigment microparticles and having a physical thickness of not less than 10 nm and an antireflection multilayer film attenuating reflected light of incident light by interference of light, wherein at least one layer of the antireflection multilayer film is an electroconductive thin film having a surface resistance of not more than 1000 &OHgr;/□, and a display device including the same and methods of producing them.
    Type: Application
    Filed: December 22, 2000
    Publication date: July 5, 2001
    Applicant: Sony Corporation
    Inventors: Soya Araki, Takao Sumida, Masataka Yamashita, Hiroko Funahashi