Patents by Inventor Michiyuki Endo

Michiyuki Endo 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).

  • Method and apparatus for generating a single-sideband optical frequency comb
    Patent number: 6591026
    Abstract: A method of generating a single-sideband optical frequency comb uses an optical fiber loop that contains an optical modulator and an optical amplifier. The optical modulator is used to generate a sideband signal on only one side of a reference signal. The signal thus generated is circulated in the fiber loop while using the amplifier to compensate for optical loss in the course of the circulation.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: July 8, 2003
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Michiyuki Endo, Hidemi Tsuchida
  • Method and apparatus for generating a single-sideband optical frequency comb
    Publication number: 20020090164
    Abstract: A method of generating a single-sideband optical frequency comb uses an optical fiber loop that contains an optical modulator and an optical amplifier. The optical modulator is used to generate a sideband signal on only one side of a reference signal. The signal thus generated is circulated in the fiber loop while using the amplifier to compensate for optical loss in the course of the circulation.
    Type: Application
    Filed: November 28, 2001
    Publication date: July 11, 2002
    Applicant: Natl. Inst. of Adv. Industrial Sci. and Tech.
    Inventors: Michiyuki Endo, Hidemi Tsuchida
  • Laser-light absorber and method for absorbing laser light
    Patent number: 4682855
    Abstract: A laser-light absorber including a metal body and a flame-sprayed film essentially consisting of metal oxide applied on the metal body. The laser-absorbing properties of a laser-shield for laser welding, cutting, hardening machines, and the like are improved by applying the flame-sprayed film on the metal body.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: July 28, 1987
    Assignees: Director-General of Agency of Industrial Science and Technology, Showa Denko Kabushiki Kaisha
    Inventors: Tatsutoku Honda, Michiyuki Endo, Saburo Wakamatsu, Yoshio Kudo