Patents by Inventor Mitsuhiro Kawase

Mitsuhiro Kawase 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: 11846847
    Abstract: Provided is a light-emitting device having an excellent light emission performance irrespective of its small thickness. The light-emitting device includes a base having a surface; one or more light sources that are provided on the surface of the base, and each have an optical axis; a reflective lens provided to interpose the light source between the reflective lens and the base; a reflective sheet that is provided to surround the light source along the surface of the base, and includes a first surface that makes a first angle relative to a plane that is substantially orthogonal to the optical axis to allow the first surface to be away also from the base as the first surface is away from the light source; and a light diffusion member provided to interpose the light source, the reflective lens, and the reflective sheet, between the light diffusion member and the base.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: December 19, 2023
    Assignee: SATURN LICENSING LLC
    Inventors: Mitsuhiro Kawase, Yohei Takakuwa, Roger Corn
  • Publication number: 20220043306
    Abstract: Provided is a light-emitting device having an excellent light emission performance irrespective of its small thickness. The light-emitting device includes a base having a surface; one or more light sources that are provided on the surface of the base, and each have an optical axis; a reflective lens provided to interpose the light source between the reflective lens and the base; a reflective sheet that is provided to surround the light source along the surface of the base, and includes a first surface that makes a first angle relative to a plane that is substantially orthogonal to the optical axis to allow the first surface to be away also from the base as the first surface is away from the light source; and a light diffusion member provided to interpose the light source, the reflective lens, and the reflective sheet, between the light diffusion member and the base.
    Type: Application
    Filed: October 14, 2021
    Publication date: February 10, 2022
    Applicant: Saturn Licensing LLC
    Inventors: Mitsuhiro Kawase, Yohei Takakuwa, Roger Corn
  • Patent number: 11175532
    Abstract: Provided is a light-emitting device having an excellent light emission performance irrespective of its small thickness. The light-emitting device includes a base having a surface; one or more light sources that are provided on the surface of the base, and each have an optical axis; a reflective lens provided to interpose the light source between the reflective lens and the base; a reflective sheet that is provided to surround the light source along the surface of the base, and includes a first surface that makes a first angle relative to a plane that is substantially orthogonal to the optical axis to allow the first surface to be away also from the base as the first surface is away from the light source; and a light diffusion member provided to interpose the light source, the reflective lens, and the reflective sheet, between the light diffusion member and the base.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: November 16, 2021
    Assignee: Saturn Licensing LLC
    Inventors: Mitsuhiro Kawase, Yohei Takakuwa, Roger Corn
  • Publication number: 20200348564
    Abstract: Provided is a light-emitting device having an excellent light emission performance irrespective of its small thickness. The light-emitting device includes a base having a surface; one or more light sources that are provided on the surface of the base, and each have an optical axis; a reflective lens provided to interpose the light source between the reflective lens and the base; a reflective sheet that is provided to surround the light source along the surface of the base, and includes a first surface that makes a first angle relative to a plane that is substantially orthogonal to the optical axis to allow the first surface to be away also from the base as the first surface is away from the light source; and a light diffusion member provided to interpose the light source, the reflective lens, and the reflective sheet, between the light diffusion member and the base.
    Type: Application
    Filed: July 21, 2020
    Publication date: November 5, 2020
    Applicant: Sony Corporation
    Inventors: Mitsuhiro Kawase, Yohei Takakuwa, Roger Corn
  • Patent number: 10782561
    Abstract: Provided is a light-emitting device having an excellent light emission performance irrespective of its small thickness. The light-emitting device includes a base having a surface; one or more light sources that are provided on the surface of the base, and each have an optical axis; a reflective lens provided to interpose the light source between the reflective lens and the base; a reflective sheet that is provided to surround the light source along the surface of the base, and includes a first surface that makes a first angle relative to a plane that is substantially orthogonal to the optical axis to allow the first surface to be away also from the base as the first surface is away from the light source; and a light diffusion member provided to interpose the light source, the reflective lens, and the reflective sheet, between the light diffusion member and the base.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: September 22, 2020
    Assignee: Sony Corporation
    Inventors: Mitsuhiro Kawase, Yohei Takakuwa, Roger Corn
  • Publication number: 20180173059
    Abstract: Provided is a light-emitting device having an excellent light emission performance irrespective of its small thickness. The light-emitting device includes a base having a surface; one or more light sources that are provided on the surface of the base, and each have an optical axis; a reflective lens provided to interpose the light source between the reflective lens and the base; a reflective sheet that is provided to surround the light source along the surface of the base, and includes a first surface that makes a first angle relative to a plane that is substantially orthogonal to the optical axis to allow the first surface to be away also from the base as the first surface is away from the light source; and a light diffusion member provided to interpose the light source, the reflective lens, and the reflective sheet, between the light diffusion member and the base.
    Type: Application
    Filed: June 16, 2016
    Publication date: June 21, 2018
    Inventors: MITSUHIRO KAWASE, YOHEI TAKAKUWA, ROGER CORN
  • Patent number: 7894014
    Abstract: A backlight device that illuminates a transmissive liquid crystal panel is disclosed. The device includes: a plurality of light source substrates on which a plurality of light emitting devices irradiating illumination light are mounted; drive substrates having drive circuits for the light emitting devices and electrically connected to the light source substrates; a bottom chassis having one surface to which the plurality of light source substrates are attached; a reflector having openings corresponding to the light emitting devices and through which the light emitting devices are exposed, and reflecting the illumination light; a diffuser facing the one surface side of the reflector through a predetermined facing interval and internally diffusing the illumination light; and an optical function sheet laminate combined with the diffuser on one surface side thereof, containing a stack of a plurality of optical function sheets and guiding the illumination light to the liquid crystal panel.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: February 22, 2011
    Assignee: Sony Corporation
    Inventors: Mitsuhiro Kawase, Toshiaki Shirakuma
  • Patent number: 7894015
    Abstract: A backlight device that illuminates a transmissive liquid crystal panel is disclosed. The device includes: a plurality of light source substrates on which a plurality of light emitting devices irradiating illumination light are mounted; a bottom chassis having one surface to which the plurality of light source substrates are attached; a reflector having openings corresponding to the light emitting devices and through which the light emitting devices are exposed to one surface side, and reflecting the illumination light irradiated from the light emitting devices; a diffuser facing the one surface side of the reflector through a predetermined facing interval and internally diffusing the illumination light incident from the reflector; and an optical function sheet laminate combined with the diffuser on one surface side thereof, containing a stack of a plurality of optical function sheets and guiding the illumination light to the transmissive liquid crystal panel.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: February 22, 2011
    Assignee: Sony Corporation
    Inventor: Mitsuhiro Kawase
  • Publication number: 20090135331
    Abstract: A backlight device that illuminates a transmissive liquid crystal panel is disclosed. The device includes: a plurality of light source substrates on which a plurality of light emitting devices irradiating illumination light are mounted; a bottom chassis having one surface to which the plurality of light source substrates are attached; a reflector having openings corresponding to the light emitting devices and through which the light emitting devices are exposed to one surface side, and reflecting the illumination light irradiated from the light emitting devices; a diffuser facing the one surface side of the reflector through a predetermined facing interval and internally diffusing the illumination light incident from the reflector; and an optical function sheet laminate combined with the diffuser on one surface side thereof, containing a stack of a plurality of optical function sheets and guiding the illumination light to the transmissive liquid crystal panel.
    Type: Application
    Filed: November 14, 2008
    Publication date: May 28, 2009
    Applicant: SONY CORPORATION
    Inventor: Mitsuhiro Kawase
  • Publication number: 20090135330
    Abstract: A backlight device that illuminates a transmissive liquid crystal panel is disclosed. The device includes: a plurality of light source substrates on which a plurality of light emitting devices irradiating illumination light are mounted; drive substrates having drive circuits for the light emitting devices and electrically connected to the light source substrates; a bottom chassis having one surface to which the plurality of light source substrates are attached; a reflector having openings corresponding to the light emitting devices and through which the light emitting devices are exposed, and reflecting the illumination light; a diffuser facing the one surface side of the reflector through a predetermined facing interval and internally diffusing the illumination light; and an optical function sheet laminate combined with the diffuser on one surface side thereof, containing a stack of a plurality of optical function sheets and guiding the illumination light to the liquid crystal panel.
    Type: Application
    Filed: November 14, 2008
    Publication date: May 28, 2009
    Applicant: SONY CORPORATION
    Inventors: Mitsuhiro Kawase, Toshiaki Shirakuma
  • Patent number: 6271624
    Abstract: A color selecting electrode of a cathode ray tube is prevented from being twisted to thereby suppress an electron beam from a mislanding. A metal thin plate (6) having vertically striped opening portions (6a) is supported by frame members (7a), (7b) under a proper tension. The frame member (7a) welded to the metal thin plate (6) is joined with a supporting member (8) extended in the longitudinal direction and the frame member (7b) welded to the frame member (7a) is joined with a supporting member (9) extended in the direction (Z-axis direction) perpendicular to a plane formed of the frame members (7a, 7b). The supporting member (9) is fixed to substantially a central portion of the frame member (7b).
    Type: Grant
    Filed: September 15, 1993
    Date of Patent: August 7, 2001
    Assignee: Sony Corporation
    Inventors: Hiromichi Taguchi, Kenichiro Takayanagi, Mitsuhiro Kawase
  • Patent number: 5309059
    Abstract: A color cathode ray tube in which an aperture grill is provided having a large number of slits extended in the extending direction of fluorescent stripes bored through the grill in parallel. The slits are provided in an opposing relation to a color fluorescent screen in which the fluorescent stripes of respective colors are arranged in a predetermined order in parallel. The aperture grill is composed of a thin plate having the slits. This a frame on which the thin plate is extended with a predetermined tension in the extending direction of the slits and this thin plate is formed of a high purity iron thin plate having a thickness of equal to or less than 0.05 mm. Since the thickness of the thin plate is selected as described above, controllability of the width of the slit in the manufacturing process can be improved.
    Type: Grant
    Filed: February 5, 1992
    Date of Patent: May 3, 1994
    Assignee: Sony Corporation
    Inventors: Hisao Kume, Mitsuhiro Kawase
  • Patent number: RE46609
    Abstract: A backlight device that illuminates a transmissive liquid crystal panel is disclosed. The device includes: a plurality of light source substrates on which a plurality of light emitting devices irradiating illumination light are mounted; a bottom chassis having one surface to which the plurality of light source substrates are attached; a reflector having openings corresponding to the light emitting devices and through which the light emitting devices are exposed to one surface side, and reflecting the illumination light irradiated from the light emitting devices; a diffuser facing the one surface side of the reflector through a predetermined facing interval and internally diffusing the illumination light incident from the reflector; and an optical function sheet laminate combined with the diffuser on one surface side thereof, containing a stack of a plurality of optical function sheets and guiding the illumination light to the transmissive liquid crystal panel.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: November 14, 2017
    Assignee: SATURN LICENSING LLC.
    Inventor: Mitsuhiro Kawase
  • Patent number: RE48471
    Abstract: A backlight device that illuminates a transmissive liquid crystal panel is disclosed. The device includes: a plurality of light source substrates on which a plurality of light emitting devices irradiating illumination light are mounted; a bottom chassis having one surface to which the plurality of light source substrates are attached; a reflector having openings corresponding to the light emitting devices and through which the light emitting devices are exposed to one surface side, and reflecting the illumination light irradiated from the light emitting devices; a diffuser facing the one surface side of the reflector through a predetermined facing interval and internally diffusing the illumination light incident from the reflector; and an optical function sheet laminate combined with the diffuser on one surface side thereof, containing a stack of a plurality of optical function sheets and guiding the illumination light to the transmissive liquid crystal panel.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: March 16, 2021
    Assignee: SATURN LICENSING LLC
    Inventor: Mitsuhiro Kawase