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:
Sep. 25, 2001
Filed:
Jul. 02, 1999
Mutsuo Fukuoka, Aichi-ken, JP;
Hirokazu Iwata, Iwata, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
The invention provides a lamination apparatus including using a sheet roll with an encoder plate secured to the end face of an adhesive sheet roll, and a slit pattern on the encoder plate being detected by a photointerruptor. In addition, a duty ratio is calculated on the basis of rectangular pulse signals output from the photointerruptor, thereby identifying the type of the adhesive sheet roll. Further, the period of the rectangular pulse signals output from the photointerruptor is compared with a predetermined value, such that the trailing edge of the adhesive sheet of the adhesive sheet roll is detected at the time point when the period is smaller than the predetermined value.