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:
Jan. 05, 2010
Filed:
Sep. 07, 2006
Junji Fujii, Hamamatsu, JP;
Junji Fujii, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu-shi, JP;
Abstract
An electronic drumcomprises a hollow body parthaving an opening side, a drum head stretched over the opening side of the hollow body partand having a stroked surface, an elastic cushion partarranged to touch with a reverse side of the stroked surface of the drum heada vibration absorberthat is arranged inside the body partand absorbs a vibration transmitted from the body partand a sensorthat is arranged in the vibration absorberto touch with the elastic cushion partand outputs a result of detecting a stroke on the drum headtransmitted by the elastic cushion partThe drum headis made of a lamination of a plurality of elastic films and has a plurality of holespierced thorough all layers of the laminated films.