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:
Jul. 23, 2013
Filed:
May. 29, 2008
Junji Koyama, Azumino, JP;
Makoto Shimojo, Chofu, JP;
Yoshitomo Mizoguchi, Chofu, JP;
Harmonic Drive Systems Inc., Tokyo, JP;
Abstract
A complex sensor comprises a touch sensor and a proximity sensor. The touch sensor comprises a flexible pressure-sensitive sheet covering a fingertip portion. The pressure-sensitive sheet comprises a front surface film and a rear surface film composed of a flexible conductive material, an intermediate film which is sandwiched between the films in a state in which the intermediate film is electrically connected and which is composed of pressure-sensitive conductive rubber, and first to fourth electrode terminals formed on the front surface and rear surface films. The size of a load acting on the pressure-sensitive sheet and the center position of the load can be detected based on the terminal voltage. A through-hole is formed in the pressure-sensitive sheet such that the sensing surface of the proximity sensor is exposed, thus the approach of a holding object can be detected.