Patents by Inventor Yoko Yamakawa

Yoko Yamakawa 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).

  • Biological component measuring device
    Patent number: D908884
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: January 26, 2021
    Assignee: Light Touch Technology Incorporated
    Inventors: Koichi Yamakawa, Yoko Yamakawa
  • Biological component measuring device
    Patent number: D937425
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: November 30, 2021
    Assignee: Light Touch Technology Incorporated
    Inventors: Yoko Yamakawa, Koichi Yamakawa