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:
Jan. 25, 2022
Filed:
May. 31, 2018
Applicants:
Psm International, Inc., Tokyo, JP;
Procemex Oy, Jyskae, FI;
Inventor:
Hisataka Shitara, Tokyo, JP;
Assignees:
PSM INTERNATIONAL, INC., Tokyo, JP;
PROCEMEX OY, Jyväskylä, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/225 (2006.01); G01N 21/47 (2006.01); G01N 21/3559 (2014.01);
U.S. Cl.
CPC ...
G01N 21/47 (2013.01); G01N 21/3559 (2013.01); H04N 5/2256 (2013.01);
Abstract
The quality measurement method for a long sheet material W includes measuring cellulose fibers, % moisture, and % ash of the paper web W by using area camerastohaving an infrared light receiving element and a light sourcehaving an infrared light emitting LED element. Performance check for the infrared camerastoover the entire width and correction of measured values are performed by using consistency between measured values for the same point in an overlap area measured by adjacent cameras and reference samplesat the off-sheet positions provided at both sides.