Patents by Inventor Kousuke Ishikawa

Kousuke Ishikawa 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).

  • Keyboard device and cooling method of drive device
    Patent number: 12456444
    Abstract: A keyboard device includes keys, drive devices, a housing, and a fan. The keys are arranged side by side in a scale direction. The drive devices apply, to the keys, a driving force swinging the key. The housing includes a shelf plate supporting the drive devices. The fan is attached to an upper side of the shelf plate of the housing and exhausts air in the housing to outside. The shelf plate includes an air intake port for sucking in air outside the housing by the fan.
    Type: Grant
    Filed: October 19, 2023
    Date of Patent: October 28, 2025
    Assignee: Roland Corporation
    Inventors: Hitoshi Sato, Yutaka Goto, Kousuke Ishikawa
  • KEYBOARD DEVICE AND COOLING METHOD OF DRIVE DEVICE
    Publication number: 20240169964
    Abstract: A keyboard device includes keys, drive devices, a housing, and a fan. The keys are arranged side by side in a scale direction. The drive devices apply, to the keys, a driving force swinging the key. The housing includes a shelf plate supporting the drive devices. The fan is attached to an upper side of the shelf plate of the housing and exhausts air in the housing to outside. The shelf plate includes an air intake port for sucking in air outside the housing by the fan.
    Type: Application
    Filed: October 19, 2023
    Publication date: May 23, 2024
    Applicant: Roland Corporation
    Inventors: Hitoshi Sato, Yutaka Goto, Kousuke Ishikawa