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. 15, 2022
Filed:
Oct. 29, 2019
Applicant:
Pfu Limited, Kahoku, JP;
Inventors:
Yuta Arai, Kahoku, JP;
Shingo Kanaya, Kahoku, JP;
Assignee:
PFU LIMITED, Kahoku, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 7/02 (2006.01); B65H 5/06 (2006.01); B65H 7/20 (2006.01);
U.S. Cl.
CPC ...
B65H 7/02 (2013.01); B65H 5/06 (2013.01); B65H 5/062 (2013.01); B65H 7/20 (2013.01); B65H 2511/13 (2013.01); B65H 2701/1125 (2013.01);
Abstract
A medium conveying apparatus includes a conveyance roller to convey a medium, a motor to drive the conveyance roller, a signal generator to output a pulse signal, a pulse width of which changes according to a rotation speed of the motor, and a processor to rotate the conveyance roller by controlling the motor, and detect a fluctuation of the pulse width caused by a load fluctuation when the conveyance roller conveys a medium to determine a thickness of the medium according to the pulse width.