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:
Apr. 27, 2010
Filed:
Apr. 11, 2006
Fumihiko Nakazawa, Kawasaki, JP;
Satoshi Sano, Kawasaki, JP;
Yoshio Satoh, Kawasaki, JP;
Takashi Matsuda, Kawasaki, JP;
Fumihiko Nakazawa, Kawasaki, JP;
Satoshi Sano, Kawasaki, JP;
Yoshio Satoh, Kawasaki, JP;
Takashi Matsuda, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A plurality of excitation elements are disposed on two facing sides of a quadrilateral detection range in a non-piezoelectric substrate, and a plurality of receiving elements are disposed on the other two sides of the detection range so as to face the excitation elements respectively. Surface acoustic waves are transmitted from the respective plurality of excitation elements in two diagonal directions of the detection range respectively, and the surface acoustic waves from the two diagonal directions are received by the respective receiving elements, so that a position of an object in contact with the substrate is detected based on received results in the receiving elements.