Patents by Inventor YUUYA IWAI

YUUYA IWAI 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).

  • Publication number: 20190191050
    Abstract: An illumination device includes a light guide member having a bar-like shape and a light source disposed so as to face an end surface of the light guide member. The illumination device guides light from the light source in the light guide member and emits the light from a light emission surface of the light guide member formed in a longitudinal direction of the light guide member. The light emission surface includes a first light diffusing portion that is formed in a first portion near the light source and that has a protruding/recessed shape, and a second light diffusing portion that is formed in a second portion adjacent to an end of the first light diffusing portion, the end being away from the light source. The second light diffusing portion has a protruding/recessed shape and has lower light diffusivity than the first light diffusing portion.
    Type: Application
    Filed: February 15, 2019
    Publication date: June 20, 2019
    Inventors: YASUHIRO SUTOH, SHOHICHI FUKUTOME, KENJI NAKANISHI, YUUYA IWAI
  • Patent number: 10244140
    Abstract: An illumination device includes a light guide member having a bar-like shape and a light source disposed so as to face an end surface of the light guide member. The illumination device guides light from the light source in the light guide member and emits the light from a light emission surface of the light guide member formed in a longitudinal direction of the light guide member. The light emission surface includes a first light diffusing portion that is formed in a first portion near the light source and that has a protruding/recessed shape, and a second light diffusing portion that is formed in a second portion adjacent to an end of the first light diffusing portion, the end being away from the light source. The second light diffusing portion has a protruding/recessed shape and has lower light diffusivity than the first light diffusing portion.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: March 26, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yasuhiro Sutoh, Shohichi Fukutome, Kenji Nakanishi, Yuuya Iwai
  • Publication number: 20180160003
    Abstract: An illumination device includes a light guide member having a bar-like shape and a light source disposed so as to face an end surface of the light guide member. The illumination device guides light from the light source in the light guide member and emits the light from a light emission surface of the light guide member formed in a longitudinal direction of the light guide member. The light emission surface includes a first light diffusing portion that is formed in a first portion near the light source and that has a protruding/recessed shape, and a second light diffusing portion that is formed in a second portion adjacent to an end of the first light diffusing portion, the end being away from the light source. The second light diffusing portion has a protruding/recessed shape and has lower light diffusivity than the first light diffusing portion.
    Type: Application
    Filed: November 29, 2017
    Publication date: June 7, 2018
    Inventors: YASUHIRO SUTOH, SHOHICHI FUKUTOME, KENJI NAKANISHI, YUUYA IWAI