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.

Date of Patent:
Feb. 08, 1994

Filed:

Jul. 15, 1992
Applicant:
Inventors:

Koshiro Ueda, Omiya, JP;

Mutsumi Moribayashi, Omiya, JP;

Tohru Kohno, Omiya, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
419 37 ; 419 30 ; 419 31 ; 419 32 ; 419 33 ; 419 36 ; 419 38 ; 419 39 ; 419 40 ; 419 44 ; 419 23 ; 75235 ; 75243 ;
Abstract

The present invention presents a method of processing ferrous powder materials to produce small component parts exhibiting excellent soft magnetic properties, in particular, residual magnetic flux density. The processing steps involve, in part, mixing with a binder, dewaxing or presintering at a temperature higher than in the conventional dewaxing process, followed by final sintering and a further conversion sintering, at a temperature lower than in the conventional sintering process, to produce parts having density values of over 96% theoretical density and excellent soft magnetic properties. The invented method is suitable for producing small component parts having sufficient strength and excellent soft magnetic properties to make them suitable for miniaturized electrical and electronic equipment.


Find Patent Forward Citations

Ueda, Koshiro. (1994). Method for making injection molded soft magnetic material (U.S. Patent No. 5284615). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5284615

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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