Patents by Inventor Naoka Yamamoto

Naoka Yamamoto 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).

  • Racket
    Patent number: 11944877
    Abstract: A tennis racket includes a frame and a grommet. The frame includes a grommet groove, a small groove, and a hole. The small groove is recessed from the grommet groove. The grommet includes a base and a pipe. In a state where the grommet is attached to the frame, the base is accommodated in the grommet groove, and the pipe extends through the hole. The base is not positioned inside the small groove. Therefore, at the back of a back side surface of the base, there is a space derived from the small groove.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: April 2, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Yosuke Yamamoto, Naoka Sakamoto
  • Method of preserving tissue equivalent and tissue equivalent preserved in frozen state
    Publication number: 20030118982
    Abstract: A method for cryopreservation of a tissue equivalent whereby the viability of frozen cells and the biological activity of thawed cells are improved and the steps are simplified; and a cryopreserved tissue equivalent obtained by the method. Cells suspended in a cryopreserving solution are inoculated into a matrix and then frozen before the cells adhere to the matrix.
    Type: Application
    Filed: September 23, 2002
    Publication date: June 26, 2003
    Inventors: Naoka Yamamoto, Masayo Nomura, Takeshi Moriyama