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. 19, 2006
Filed:
Apr. 21, 2006
Yasunori Nagaoka, Shizuoka-ken, JP;
Shiro Uno, Shizuoka-ken, JP;
Shinichi Matsumoto, Shizuoka-ken, JP;
Yasunori Nagaoka, Shizuoka-ken, JP;
Shiro Uno, Shizuoka-ken, JP;
Shinichi Matsumoto, Shizuoka-ken, JP;
Roland Corporation, Hamamatsu, JP;
Abstract
A keyboard apparatus is provided with a key unit that has a plurality of keys supported for pivotal motion. Also provided is a detection section for detecting a key speed when any of the keys are pivoted. The key unit and detection section are supported by a housing having a bottom member formed of a resin. A reinforcing member having a sufficient rigidity is provided to reinforce the bottom member of the housing such as to reduce warping of the bottom member so as to reduce movement of the detection section as a result of warping of the bottom member.