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:
Jun. 15, 1999
Filed:
Oct. 02, 1996
Applicant:
Inventors:
Fumio Tanaka, Futtsu City, JP;
Toshio Akagi, Futtsu City, JP;
Shuji Naito, Futtsu City, JP;
Sumitada Kakimoto, Futtsu City, JP;
Michiaki Sakakibara, Futtsu City, JP;
Masahiro Ito, Futtsu City, JP;
Akihiro Senda, Narashino, JP;
Assignee:
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B07C / ; G01J / ;
U.S. Cl.
CPC ...
209580 ; 209 441 ; 209-32 ; 209582 ;
Abstract
Scrap containing copper is discriminated from iron scrap after being pulverized by imaging iron scrap using a color TV camera, treating RGB signals processed by each of the points in the image as a color vector, and discriminating scrap containing copper from iron scrap when the saturation value of the color vector is larger than a predetermined value and the hue angle of the color vector lies within a predetermined range.