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. 25, 2009
Filed:
Dec. 15, 2004
Haruhisa Toyoda, Itami, JP;
Naoto Igarashi, Itami, JP;
Hitoshi Oyama, Osaka, JP;
Yasuhiro Endo, Toyota, JP;
Ryoji Mizutani, Aichi, JP;
Haruhisa Toyoda, Itami, JP;
Naoto Igarashi, Itami, JP;
Hitoshi Oyama, Osaka, JP;
Yasuhiro Endo, Toyota, JP;
Ryoji Mizutani, Aichi, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
A power magnetic core has a start section and a termination section. In the powder magnetic core, lines of magnetic force are formed from the start section to the termination section. The powder magnetic core comprises a first portion disposed on the shortest magnetic path of the lines of magnetic force that connects the start section and the termination section and having a permeability μa and a second portion disposed apart from the shortest magnetic path of the lines of magnetic force and having a permeability μb greater than μa. With this constitution, a desired magnetic characteristic is achieved, and the iron loss is sufficiently reduced.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile