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. 28, 2012
Filed:
Jan. 14, 2009
Shuzo Yagi, Saga, JP;
Masao Nakane, Fukuoka, JP;
Yoshinori Isobata, Fukuoka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An object is to provide a substrate conveyance apparatus and a substrate detection device capable of improving flexibility in arrangement layout. The substrate detection device includes a projectorfor projecting inspection lightso as to pass through a predetermined position on a path of a substrateconveyed by conveyance belts, a light receiverfor receiving the inspection lightprojected by the projector, and a detector (a control device) for detecting that the substratereaches the predetermined position based on a decrease in the amount of received light of the inspection lightreceived by the light receiverwhen the substrateconveyed by the conveyance beltsreaches the predetermined position and a portion of the inspection lightis blocked by the substrate. The inspection lightis projected from the projectorso as to include opposite ends of a width direction of the conveyance beltsin an optical path of the inspection light in a direction orthogonal to a conveyance direction of the substrateconveyed by the conveyance beltsand the light receiverreceives the inspection light passing through upper and lower regions of the conveyance beltsin the width direction.