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. 24, 2014
Filed:
May. 11, 2012
Takeo Nakata, Osaka, JP;
Masami Ikeda, Osaka, JP;
Kazuhiro Uchida, Osaka, JP;
Makoto Sakamoto, Osaka, JP;
Kenji Fujiwara, Osaka, JP;
Takeo Nakata, Osaka, JP;
Masami Ikeda, Osaka, JP;
Kazuhiro Uchida, Osaka, JP;
Makoto Sakamoto, Osaka, JP;
Kenji Fujiwara, Osaka, JP;
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Abstract
An apparatus for determining a kind of a steel material includes an image pickup devicefor imaging a spark, which is produced when the steel materialis ground, continuously a plurality of times; a detection devicefor detecting an alloy spark zone, which corresponds to an alloy spark produced by the grinding of an alloying component contained in the steel material, from each of picked-up imagesimaged by the image pickup device; a calculation devicefor calculating the total number of alloy spark zones detected by the detection device; and a judgment devicefor determining that the steel material consists of a low-alloy steel if the total number is not smaller than a first threshold value, and determining that the steel material consists of a carbon steel if the total number is smaller than the first threshold value.