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:
Jul. 02, 1991
Filed:
Oct. 26, 1989
Toshiya Wada, Kitakyushu, JP;
Osamu Tanaka, Kitakyushu, JP;
Toshihiko Takata, Kitakyushu, JP;
Kunihide Takashima, Kitakyushu, JP;
Hiromichi Yasumoto, Kitakyushu, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
The adhesiveness of a glass film and watt loss of a grain-oriented electrical steel sheet is improved by partially protruding the glass film into the steel sheet part thereof. To attain the partial protrusion, the steel sheet is subjected, prior or subsequent to decarburization annealing, to a treatment of the surface thereof to form unevennesses, by a mechanical device, e.g., brush rolling, buff polishing, marking-off, sand papering, and grinding.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile