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:
Dec. 28, 2021
Filed:
Sep. 10, 2020
Yamaha Corporation, Hamamatsu, JP;
YAMAHA CORPORATION, Hamamatsu, JP;
Abstract
A keyboard apparatus includes a first key assembly, a second key assembly, and a third key assembly. The first key assembly includes a first key being slidably in contact with a first member at a first position and a second member at a second position. A first minimum distance between the first key assembly and the second key assembly at the rear ends thereof is larger than a second minimum distance between the first key assembly and the second key assembly at the second position within a range of rotation of the first key assembly. A third minimum distance between the first key assembly and the third key assembly at the rear ends thereof being larger than a fourth minimum distance between the first key assembly and the third key assembly at the second position within the range of rotation of the first key assembly.