Patents by Inventor Takumi USUKURA

Takumi USUKURA 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: 11086185
    Abstract: A light beam direction control element includes: a first transparent substrate; a second transparent substrate facing the first transparent substrate; a first conductive film pattern having openings and being formed on a surface of the first transparent substrate opposing the second transparent substrate; a second conductive film pattern having openings and being formed on a surface of the second transparent substrate opposing the first transparent substrate; an electrophoretic element being sandwiched between the first and second conductive film patterns, and including light-shielding electrophoretic particles having a surface charge and a transparent dispersion medium; and light-transmissive regions being disposed between the first and second transparent substrates, being sandwiched between at least a portion of the openings of the first and second conductive film patterns, having a surface parallel to the first and second conductive film patterns, and having side walls surrounded by the electrophoretic ele
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: August 10, 2021
    Assignee: TIANMA JAPAN, LTD.
    Inventors: Kunihiro Shiota, Ken Sumiyoshi, Takumi Usukura
  • Patent number: 11042072
    Abstract: A light beam direction control element includes: a first transparent substrate; a second transparent substrate which is disposed facing the first transparent substrate; light shielding elements which are disposed between the first transparent substrate and the second transparent substrate; light transmission regions which are disposed between the first transparent substrate and the second transparent substrate and whose sidewalls are surrounded by any of the light shielding elements; a resin layer which is disposed between the first transparent substrate and the second transparent substrate, surrounds an outer circumference of a light transmission region pattern formed by the light transmission regions, and includes a sealed first opening unit; and a first buffer region which is sandwiched between a surface including the first opening unit of the resin layer and the light transmission region pattern, and in which the light shielding elements are injected.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: June 22, 2021
    Assignee: TIANMA JAPAN, LTD.
    Inventors: Kunihiro Shiota, Takumi Usukura
  • Patent number: 10586925
    Abstract: Provided is a release film to be in contact with a surface of a base member and a surface of an object between the surface of the base member and the surface of the object. The release film includes a crystalline layer and a debond layer in contact with the crystalline layer. The debond layer has pores and includes an amorphous substance soluble in a solvent.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: March 10, 2020
    Assignee: TIANMA MICROELECTRONICS CO., LTD.
    Inventors: Takumi Usukura, Mamoru Okamoto
  • Publication number: 20190250482
    Abstract: A light beam direction control element includes: a first transparent substrate; a second transparent substrate which is disposed facing the first transparent substrate; light shielding elements which are disposed between the first transparent substrate and the second transparent substrate; light transmission regions which are disposed between the first transparent substrate and the second transparent substrate and whose sidewalls are surrounded by any of the light shielding elements; a resin layer which is disposed between the first transparent substrate and the second transparent substrate, surrounds an outer circumference of a light transmission region pattern formed by the light transmission regions, and includes a sealed first opening unit; and a first buffer region which is sandwiched between a surface including the first opening unit of the resin layer and the light transmission region pattern, and in which the light shielding elements are injected.
    Type: Application
    Filed: February 14, 2019
    Publication date: August 15, 2019
    Inventors: Kunihiro SHIOTA, Takumi USUKURA
  • Publication number: 20190100853
    Abstract: A light beam direction control element includes: a first transparent substrate; a second transparent substrate facing the first transparent substrate; a first conductive film pattern having openings and being formed on a surface of the first transparent substrate opposing the second transparent substrate; a second conductive film pattern having openings and being formed on a surface of the second transparent substrate opposing the first transparent substrate; an electrophoretic element being sandwiched between the first and second conductive film patterns, and including light-shielding electrophoretic particles having a surface charge and a transparent dispersion medium; and light-transmissive regions being disposed between the first and second transparent substrates, being sandwiched between at least a portion of the openings of the first and second conductive film patterns, having a surface parallel to the first and second conductive film patterns, and having side walls surrounded by the electrophoretic ele
    Type: Application
    Filed: October 3, 2018
    Publication date: April 4, 2019
    Applicant: TIANMA JAPAN, LTD.
    Inventors: Kunihiro SHIOTA, Ken SUMIYOSHI, Takumi USUKURA
  • Publication number: 20180301628
    Abstract: Provided is a release film to be in contact with a surface of a base member and a surface of an object between the surface of the base member and the surface of the object. The release film includes a crystalline layer and a debond layer in contact with the crystalline layer. The debond layer has pores and includes an amorphous substance soluble in a solvent.
    Type: Application
    Filed: April 16, 2018
    Publication date: October 18, 2018
    Applicant: TIANMA JAPAN, LTD.
    Inventors: Takumi USUKURA, Mamoru OKAMOTO