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:
Aug. 26, 2003
Filed:
Jul. 20, 2001
Applicant:
Inventors:
Akira Nishimizu, Hitachi, JP;
Hideki Masuhara, Hitachinaka, JP;
Youichi Amako, Niigata, JP;
Masanao Kuwabara, Nakajyo, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 2/724 ;
U.S. Cl.
CPC ...
H01F 2/724 ;
Abstract
To provide a technology capable of restraining direct current magnetic deviation in a transformer without providing a gap in a core, an axis of easy magnetization is provided in a second direction intersecting with a first direction along a magnetic circuit of the core to thereby bring a B-H characteristic of a material characteristic of the core into an unsaturated state.