The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2026
Filed:
Feb. 26, 2024
Kawai Musical Instruments Manufacturing Co., Ltd., Hamamatsu, JP;
Akihiro Suzuki, Hamamatsu, JP;
KAWAI MUSICAL INSTRUMENTS MANUFACTURING CO., LTD., Hamamatsu, JP;
Abstract
In a keyboard device, a white-key actuator and a black-key actuator are arranged so as not to coincide in position with each other in a front-rear direction. A common hammer member is employed for a white-key hammer and for a black-key hammer. The common hammer member is provided with a white-key sliding surface to be pressed by the white-key actuator and a black-key sliding surface to be pressed by the black-key actuator. The white-key sliding surface and the black-key sliding surface differ in position and/or shape from each other. The white-key sliding surface of the common hammer member is pressed by the white-key actuator at key-pressing of a white key, and the black-key sliding surface of the common hammer member is pressed by the black-key actuator at key-pressing of a black key.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile