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:
Sep. 03, 2019
Filed:
Jul. 25, 2018
Yamaha Corporation, Hamamatsu-shi, JP;
Ryuji Hashimoto, Hamamatsu, JP;
YAMAHA CORPORATION, Hamamatsu-Shi, JP;
Abstract
A drum head includes: a first film including a striking surface; a second film disposed opposed to a back surface of the first film which is back from the striking surface; and a sensor disposed between the first film and the second film and configured to output a signal related to vibration. The sensor includes: a first contact surface configured to contact the back surface of the first film without being secured to the back surface; and a second contact surface configured to contact a front surface of the second film without being secured to the front surface. A sensor tail of the sensor is secured to at least one of the first film and the second film located outside the shell when the first film and the second film are stretched over an open end of a shell.