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:
Feb. 16, 2010
Filed:
Aug. 19, 2003
Shigeaki Maruyama, Kanagawa, JP;
Shigeki Motoyama, Kanagawa, JP;
Ivan Poupyrev, Tokyo, JP;
Keiichi Kimura, Kanagawa, JP;
Shigeaki Maruyama, Kanagawa, JP;
Shigeki Motoyama, Kanagawa, JP;
Ivan Poupyrev, Tokyo, JP;
Keiichi Kimura, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An input device includes a touch panel with which a user performs an input operation of information by touching the touch panel. The input device further includes a vibration generation device for feeding back, to the user, various kinds of sense of touch in accordance with the type of the information through the touch panel. Additionally, the input device includes a vibration control circuit for allowing the vibration generation device to generate various forms of vibrations in accordance with the type of the information. The vibration generation device is a bimorph piezoelectric actuator including a first actuator unit and a second actuator unit stacked on the first actuator unit in which when one of the first and second actuator units expands, the other contracts. Further, each of the first and second actuator units has a multi-layered piezoelectric element layer.