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. 13, 2003
Filed:
Jan. 16, 2001
Applicant:
Inventors:
Cecilia Elgelid, Helsingborg, SE;
Anne Larsson-Westberg, Helsingborg, SE;
Lars-Åke Larsson, Helsingborg, SE;
Assignee:
Höganäs AB, Höganäs, SE;
Primary Examiner:
Int. Cl.
CPC ...
B32B 1/500 ; B32B 1/502 ; B29B 3/502 ; B29B 4/302 ;
U.S. Cl.
CPC ...
B32B 1/500 ; B32B 1/502 ; B29B 3/502 ; B29B 4/302 ;
Abstract
The invention concerns a process for the preparation of an insulated soft magnetic powder comprising the steps of mixing particles of a soft magnetic iron base powder with an acidic, aqueous insulating-layer forming solution, in which MgO has been dissolved; and drying the obtained mixture to obtain an electrically insulating Mg containing layer on the particle surfaces. The invention also concerns the powder per se as well as compressed soft magnetic powder cores prepared from the powder.