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:
Dec. 16, 2014
Filed:
Dec. 17, 2010
Yasuharu Onishi, Tokyo, JP;
Shigeo Sato, Tokyo, JP;
Jun Kuroda, Tokyo, JP;
Yukio Murata, Tokyo, JP;
Yuichiro Kishinami, Tokyo, JP;
Nobuhiro Kawashima, Tokyo, JP;
Motoyoshi Komoda, Tokyo, JP;
Yasuharu Onishi, Tokyo, JP;
Shigeo Sato, Tokyo, JP;
Jun Kuroda, Tokyo, JP;
Yukio Murata, Tokyo, JP;
Yuichiro Kishinami, Tokyo, JP;
Nobuhiro Kawashima, Tokyo, JP;
Motoyoshi Komoda, Tokyo, JP;
Lenovo Innovations Limited (Hong Kong), Quarry Bay, HK;
Abstract
There are provided a vibration film () having a piezoelectric element, a magnetic circuit () which generates magnetic force on the basis of a first electric signal and vibrates the vibration film () by the magnetic force; and an adjustment unit () which generates a second electric signal on the basis of the first electric signal and applies a voltage based on the second electric signal between both surfaces of the piezoelectric element. The amplitude of the entire vibration film () is expanded by making the vibration by the magnetic force, which is generated from the magnetic circuit (), and the vibration, which is generated by application of a voltage to the piezoelectric element, synchronize with each other.