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:
Aug. 25, 2015
Filed:
Jun. 29, 2012
Shuichi Fukuoka, Kirishima, JP;
Noriyuki Kushima, Kirishima, JP;
Hiroshi Ninomiya, Kirishima, JP;
Takeshi Hirayama, Kirishima, JP;
Kenji Yamakawa, Kirishima, JP;
Shuichi Fukuoka, Kirishima, JP;
Noriyuki Kushima, Kirishima, JP;
Hiroshi Ninomiya, Kirishima, JP;
Takeshi Hirayama, Kirishima, JP;
Kenji Yamakawa, Kirishima, JP;
KYOCERA CORPORATION, Kyoto-Shi, Kyoto, JP;
Abstract
There are provided a sound generator with less peaks and dips in sound-pressure frequency characteristics, and a sound-generating apparatus which employs the sound generator. A sound generator and a sound-generating apparatus using the same are provided, wherein the sound generator includes at least a vibration plate, and a plurality of piezoelectric elements attached to the vibration plate so as to be spaced from each other to cause the vibration plate to vibrate. The plurality of piezoelectric elements includes piezoelectric elements having at least two different thicknesses. The piezoelectric elements having at least two different thicknesses are disposed in two directions that cross each other in a main surface of the vibration plate. Accordingly, it is possible to achieve a sound generator, as well as a sound-generating apparatus which have less peaks and dips in sound-pressure frequency characteristics.