Patents by Inventor Shinpei Maeda

Shinpei Maeda 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: 10627063
    Abstract: A light source module includes first LED elements that emit blue light, second LED elements that emit amber light, and a wavelength conversion member disposed in optical paths of the first LED elements and the second LED elements. The wavelength conversion member converts a portion of the blue light emitted by the first LED elements to yellow light, transmits a portion of the blue light emitted by the first LED elements, and substantially transmits the amber light emitted by the second LED elements.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: April 21, 2020
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Yuzo Maeno, Tsukasa Tokida, Shinpei Maeda, Hidemichi Sone
  • Publication number: 20180266639
    Abstract: A light source module includes first LED elements that emit blue light, second LED elements that emit amber light, and a wavelength conversion member disposed in optical paths of the first LED elements and the second LED elements. The wavelength conversion member converts a portion of the blue light emitted by the first LED elements to yellow light, transmits a portion of the blue light emitted by the first LED elements, and substantially transmits the amber light emitted by the second LED elements.
    Type: Application
    Filed: May 11, 2018
    Publication date: September 20, 2018
    Inventors: Yuzo MAENO, Tsukasa TOKIDA, Shinpei MAEDA, Hidemichi SONE
  • Patent number: 9496465
    Abstract: A light emitting device includes a light emitting element whose upper surface is a light extraction surface, and a light-transmissive member that has an upper surface and a lower surface, and covers the light extraction surface of the light emitting element. The light-transmissive member contains a phosphor. The upper surface and the lower surface of the light-transmissive member are both flat surfaces and parallel to each other. A side surface of the light-transmissive member has a protruding portion that protrudes to the side and has contact with the lower surface.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: November 15, 2016
    Assignee: NICHIA CORPORATION
    Inventors: Kunihito Sugimoto, Keisuke Sejiki, Tsukasa Tokida, Shinpei Maeda
  • Patent number: 9349926
    Abstract: There are provided a light emitting module including a luminescent material layer (15) which is disposed so as to cover a light emitting surface (13a) of a semiconductor light emitting element (13) and which changes a wavelength of at least part of light emitted from the semiconductor light emitting element, and a light shielding wall (16) which surrounds the semiconductor light emitting element and the luminescent material layer from the circumference thereof, and the luminescent material layer is bonded to the semiconductor light emitting element and the light shielding wall with a bonding resin (23) having a light transmittivity, a distal end portion of the light shielding wall is caused to project further forwards than the luminescent material layer, and a transparent resin (24) is applied so as to cover an exposed surface (20a) of a distal end portion (21) of the light shielding wall.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: May 24, 2016
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Shinpei Maeda, Tsukasa Tokida
  • Publication number: 20160079486
    Abstract: A light emitting device includes a light emitting element whose upper surface is a light extraction surface, and a light-transmissive member that has an upper surface and a lower surface, and covers the light extraction surface of the light emitting element. The light-transmissive member contains a phosphor. The upper surface and the lower surface of the light-transmissive member are both flat surfaces and parallel to each other. A side surface of the light-transmissive member has a protruding portion that protrudes to the side and has contact with the lower surface.
    Type: Application
    Filed: March 26, 2014
    Publication date: March 17, 2016
    Inventors: Kunihito SUGIMOTO, Keisuke SEJIKI, Tsukasa TOKIDA, Shinpei MAEDA
  • Publication number: 20140151726
    Abstract: There are provided a light emitting module including a luminescent material layer (15) which is disposed so as to cover a light emitting surface (13a) of a semiconductor light emitting element (13) and which changes a wavelength of at least part of light emitted from the semiconductor light emitting element, and a light shielding wall (16) which surrounds the semiconductor light emitting element and the luminescent material layer from the circumference thereof, and the luminescent material layer is bonded to the semiconductor light emitting element and the light shielding wall with a bonding resin (23) having a light transmittivity, a distal end portion of the light shielding wall is caused to project further forwards than the luminescent material layer, and a transparent resin (24) is applied so as to cover an exposed surface (20a) of a distal end portion (21) of the light shielding wall.
    Type: Application
    Filed: June 21, 2012
    Publication date: June 5, 2014
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Shinpei Maeda, Tsukasa Tokida