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:
Nov. 18, 2014
Filed:
Jun. 08, 2012
Kazuki Yoshida, Suwa, JP;
Kanechika Kiyose, Matsumoto, JP;
Kazuki Yoshida, Suwa, JP;
Kanechika Kiyose, Matsumoto, JP;
Seiko Epson Corporation, , JP;
Abstract
A detection target space of an optical position detection device is divided into a detection target space due to a light emitting/receiving unit and a light emitting/receiving unit and a detection target space due to a light emitting/receiving unit and a light emitting/receiving unit. The light emitting/receiving units overlap each other in a Z-axis direction, and a light receiving element of the light emitting/receiving unit and a light receiving element of the light emitting/receiving unit are disposed so as to overlap each other in the Z-axis direction with light receiving surfaces facing to respective directions different from each other.