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:
Oct. 18, 2016
Filed:
Feb. 24, 2016
Applicant:
Yamaha Corporation, Hamamatsu-shi, Shizuoka-ken, JP;
Inventors:
Yohei Wada, Hamamatsu, JP;
Ryuji Hashimoto, Hamamatsu, JP;
Assignee:
YAMAHA CORPORATION, Hamamatsu-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10D 13/02 (2006.01);
U.S. Cl.
CPC ...
G10D 13/027 (2013.01);
Abstract
A drum head includes a skin having an inner skin and an outer skin formed integrally with an outer edge of the inner skin. The inner skin has a plurality of openings arranged in a circumferential direction of the inner skin. An outline of each of the plurality of openings has an inner end portion in a radial direction of the skin in plan view, and the inner end portion protrudes and tapers inward in the radial direction.