Patents by Inventor Ryota KUJIRA

Ryota KUJIRA 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).

  • Laser chamber apparatus, gas laser apparatus, and method for manufacturing electronic device
    Patent number: 11588291
    Abstract: A laser chamber apparatus may include a pipe, an inner electrode extending along a longitudinal direction of the pipe and disposed in a through hole in the pipe, an outer electrode including a contact plate extending along the longitudinal direction of the pipe and being in contact with an outer circumferential surface of the pipe and a ladder section formed of bar members each having one end connected to the contact plate and juxtaposed along a longitudinal direction of the contact plate, and a leaf spring extending along the longitudinal direction of the pipe and configured to press the outer electrode against the pipe. The leaf spring may include leaf spring pieces separated by slits, and the leaf spring pieces may each include a bent section bent along the edge and are configured to press the bar members in a position shifted from the bent sections toward the edge.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: February 21, 2023
    Assignee: Gigaphoton Inc.
    Inventors: Takuya Ishii, Takashi Ito, Ryota Kujira
  • LASER CHAMBER APPARATUS, GAS LASER APPARATUS, AND METHOD FOR MANUFACTURING ELECTRONIC DEVICE
    Publication number: 20210336404
    Abstract: A laser chamber apparatus may include a pipe, an inner electrode extending along a longitudinal direction of the pipe and disposed in a through hole in the pipe, an outer electrode including a contact plate extending along the longitudinal direction of the pipe and being in contact with an outer circumferential surface of the pipe and a ladder section formed of bar members each having one end connected to the contact plate and juxtaposed along a longitudinal direction of the contact plate, and a leaf spring extending along the longitudinal direction of the pipe and configured to press the outer electrode against the pipe. The leaf spring may include leaf spring pieces separated by slits, and the leaf spring pieces may each include a bent section bent along the edge and are configured to press the bar members in a position shifted from the bent sections toward the edge.
    Type: Application
    Filed: July 9, 2021
    Publication date: October 28, 2021
    Applicant: Gigaphoton Inc.
    Inventors: Takuya ISHII, Takashi ITO, Ryota KUJIRA