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. 20, 1976
Filed:
Jun. 10, 1974
Applicant:
Inventors:
Fumio Matsumoto, Kitakyushu, JA;
Katuro Kuroki, Kitakyushu, JA;
Kunihide Takashima, Kitakyushu, JA;
Toshihiko Takata, Kitakyushu, JA;
Hiromichi Yasumoto, Kitakyushu, JA;
Kuniyasu Honda, Nakama, JA;
Assignee:
Nippon Steel Corporation, , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B / ;
U.S. Cl.
CPC ...
72364 ; 148111 ; 148113 ;
Abstract
A cold rolling method for producing a high magnetic flux density grain oriented electrical steel sheet or strip having remarkably excellent B.sub.8 characteristics, comprising subjecting a hot rolled steel sheet or strip a combination of heavy cold rolling with annealing during which the steel sheet or strip is held at a temperature between 100.degree. and 350.degree.C at an interim sheet thickness stage during the heavy cold rolling.