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:
May. 31, 1977
Filed:
Nov. 17, 1975
Kazuhide Nakaoka, Yokohama, JA;
Kenji Araki, Yokohama, JA;
Takayoshi Shimomura, Fukuyama, JA;
Haruo Kubotera, Yokohama, JA;
Shinobu Osaka, Fukuyama, JA;
Nobuo Tanaka, Fukuyama, JA;
Hiroshi Kuroda, Fukuyama, JA;
Takao Kurihara, Yokohama, JA;
Nippon Kokan Kabushiki Kaisha, Tokyo, JA;
Abstract
In a process of making a cold-reduced steel strip for press-forming by a continuous annealing process comprising a rapid cooling step after recrystallization heating and an over-aging treatment step, when no spray of cooling water at the runout table before coiling in the hot-rolling stage is carried out on the top side and the bottom side of a travelling hot-rolled steel strip by about 20 to 200m respectively, a cold reduced soft steel sheet for press-forming is easily obtained by the above continuous annealing process.