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:
May. 01, 2012
Filed:
Nov. 07, 2008
Koji Nishiyama, Kyoto, JP;
Hiroshi Yoshii, Kyoto, JP;
Koji Nishiyama, Kyoto, JP;
Hiroshi Yoshii, Kyoto, JP;
Sokudo Co., Ltd., Kyoto, JP;
Abstract
When a substrate is subjected to bevel cleaning processing, a first magnet plate is arranged at a lower position, and a second magnet plate is arranged at an upper position. In this case, each of chuck pins enters a closed state in a region outside the first magnet plate, while entering an opened state in a region outside the second magnet plate. That is, a holder in each of the chuck pins is maintained in contact with an outer edge of the substrate when it passes through the region outside the first magnet plate, while being spaced apart from the outer edge of the substrate when it passes through the region outside the second magnet plate.