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:
Apr. 01, 2014
Filed:
May. 11, 2012
Takeo Nakata, Osaka, JP;
Masami Ikeda, Osaka, JP;
Makoto Sakamoto, Osaka, JP;
Kenji Fujiwara, Osaka, JP;
Kazuhiro Uchida, Osaka, JP;
Takeo Nakata, Osaka, JP;
Masami Ikeda, Osaka, JP;
Makoto Sakamoto, Osaka, JP;
Kenji Fujiwara, Osaka, JP;
Kazuhiro Uchida, Osaka, JP;
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Abstract
An apparatusfor determining a kind of a steel material detects a spark pixel from a color picked-up imageof a sparkproduced when a steel materialis ground, and detects a pixel, in which the density of any one color component for judgment selected from among RGB color components is low, as a low-density pixel from the spark pixels. The apparatusdetermines that the steel material is a steel material consisting of the high-strength steel if the ratio of the total number of low-density pixels to the total number of spark pixels is not lower than a threshold value for judgment, and determines that the steel material is a steel material consisting of the ordinary steel if the ratio is lower than the threshold value for judgment.