Patents by Inventor Yuki Hamamoto

Yuki Hamamoto 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: 11955772
    Abstract: A semiconductor light emitting element includes an optical waveguide having a first and second waveguide provided with a width that allows propagation of light in a second-order mode or higher and a multimode optical interference waveguide provided with a wider width than the first and second waveguide and arranged at a position therebetween. The semiconductor light emitting element further includes a first optical loss layer facing the first waveguide in an active-layer crossing direction for causing a loss of light that is propagating in the first waveguide in the second-order mode or higher and a second optical loss layer facing the second waveguide in an active-layer crossing direction for causing a loss of light that is propagating in the second waveguide in the second-order mode or higher, the active-layer crossing direction being orthogonal to a surface of an active layer.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: April 9, 2024
    Assignees: DENSO CORPORATION, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Yuki Kamata, Koichi Oyama, Hiroyuki Tarumi, Kiichi Hamamoto, Haisong Jiang
  • Patent number: 10964166
    Abstract: Disclosed is an operating device of a game machine which is installed in the game machine including a display portion which displays the progress of a game in accordance with a control of a body controller and a result of the game and operates the progress of the game in conjunction with a display on the display portion. This operating device includes a rotation operation portion capable of being rotated by a player, a rotation operation detecting portion which detects a state of rotation operation of the rotation operation portion, a decoration display portion which displays any one of a pattern, a symbol and a letter, or a combination thereof, and a connection portion which outputs a signal of the rotation operation detecting portion to the body controller and inputs a signal for controlling a display of the decoration display portion from the body controller.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: March 30, 2021
    Assignee: JT CO., LTD.
    Inventors: Hidehiko Sakamoto, Jong Hak Choi, Hideo Takeda, Nobuyuki Matsutani, Hiroaki Kashima, Yuta Kikuchi, Takashi Mega, Akito Inoue, Yoshinori Ogawa, Yoshihisa Tanaka, Yuki Hamamoto, Rui Kaga, Takaaki Hirama, Noriyuki Ikarashi
  • Publication number: 20200043292
    Abstract: Disclosed is an operating device of a game machine which is installed in the game machine including a display portion which displays the progress of a game in accordance with a control of a body controller and a result of the game and operates the progress of the game in conjunction with a display on the display portion. This operating device includes a rotation operation portion capable of being rotated by a player, a rotation operation detecting portion which detects a state of rotation operation of the rotation operation portion, a decoration display portion which displays any one of a pattern, a symbol and a letter, or a combination thereof, and a connection portion which outputs a signal of the rotation operation detecting portion to the body controller and inputs a signal for controlling a display of the decoration display portion from the body controller.
    Type: Application
    Filed: January 31, 2019
    Publication date: February 6, 2020
    Applicant: JT CO.,LTD.
    Inventors: Hidehiko Sakamoto, Jong Hak Choi, Hideo Takeda, Nobuyuki Matsutani, Hiroaki Kashima, Yuta Kikuchi, Takashi Mega, Akito Inoue, Yoshinori Ogawa, Yoshihisa Tanaka, Yuki Hamamoto, Rui Kaga, Takaaki Hirama, Noriyuki Ikarashi