Patents by Inventor Takuma SAKA

Takuma SAKA 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).

  • Drum head and attachment method of cushion
    Patent number: 11984099
    Abstract: A drum head and an attachment method of a cushion are provided. A drum head includes: a diaphragm; an outer cushion that is joined to the diaphragm and has a predetermined cushioning property; an inner cushion that is interposed between the outer cushion and the diaphragm and has a predetermined cushioning property; and at least one joint that joins the outer cushion to the diaphragm in a state in which the inner cushion is pressed against the diaphragm by the outer cushion.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: May 14, 2024
    Assignee: Roland Corporation
    Inventors: Takuma Saka, Kenji Sakamoto
  • DRUM HEAD AND ATTACHMENT METHOD OF CUSHION
    Publication number: 20210201860
    Abstract: A drum head and an attachment method of a cushion are provided. A drum head includes: a diaphragm; an outer cushion that is joined to the diaphragm and has a predetermined cushioning property; an inner cushion that is interposed between the outer cushion and the diaphragm and has a predetermined cushioning property; and at least one joint that joins the outer cushion to the diaphragm in a state in which the inner cushion is pressed against the diaphragm by the outer cushion.
    Type: Application
    Filed: December 2, 2020
    Publication date: July 1, 2021
    Applicant: Roland Corporation
    Inventors: Takuma SAKA, Kenji SAKAMOTO