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:
May. 11, 1999
Filed:
Sep. 17, 1997
Applicant:
Inventors:
Minoru Nakano, Aichi-Ken, JP;
Hiroaki Ohmuro, Shizuoka, JP;
Assignee:
Yamaha Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10D / ;
U.S. Cl.
CPC ...
84402 ; 84403 ; 84102 ;
Abstract
A plurality of rectangular parallelopiped tone bars are incorporated in a percussion instrument, are connected to a supporting bar at central points thereof so as to produce the second-order vertical flexural vibration and the first-order torsional vibration, and the ratio of width to thickness is regulated to a frequency ratio of 1:2 so as to improve the interval between the percussion sounds and the consonance.