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. 13, 2011
Filed:
May. 24, 2004
Michiko Endo, Shinagawa, JP;
Michiko Endo, Shinagawa, JP;
Fujitsu Component Limited, Tokyo, JP;
Abstract
A touch panel includes: a transparent substrate on which surface acoustic wave is propagated; a transmission/reception unit that is formed in peripheral regions on the transparent substrate, each two of the peripheral regions facing each other, and transmit and receive the surface acoustic wave; a detecting unit that detects the location of an object touching a predetermined operation area; and a sheet member that faces the transparent substrate, with a space layer being interposed in between, and has first protrusions formed on a substrate-facing surface that faces the transparent substrate. In this touch panel, the substrate-facing surface of the sheet member is not brought into contact with the transparent substrate when an object does not touch the operation area, and the substrate-facing surface of the sheet member is brought into contact with the transparent substrate when the object touches the operation area.