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:
Jan. 08, 2002

Filed:

Apr. 10, 2000
Applicant:
Inventors:

Takeshi Ida, Mooka, JP;

Naoshi Marutani, Mooka, JP;

Eiji Aoishi, late of Kobe, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/08 ; H01F 1/113 ; H01J 2/954 ;
U.S. Cl.
CPC ...
H01F 1/08 ; H01F 1/113 ; H01J 2/954 ;
Abstract

There is provided a resin magnet material that has excellent flame retardancy, produces only a small amount of toxic substances when ignited, and yields very few molding defects; as well as an electron beam adjustment apparatus in which this resin magnet material is used. To achieve this object, a first invention comprises a flame-retardant resin magnet material obtained by adding (Z) an alnico-based magnetic powder or a ferrite-based magnetic powder to a flame-retardant resin composition that is itself obtained by adding heat-resistant aluminum hydroxide and antimony trioxide to a polyamide resin in the following amounts: (A) per 100 weight parts polyamide resin, (B) X weight parts heat-resistant aluminum hydroxide with a decomposition temperature of 280&deg; C. or higher (where 10 weight parts<X 70 weight parts), and (C) X weight: parts antimony trioxide (where 40 weight parts<X 270 weight parts). A second invention entails further adding zinc borate in a prescribed amount, and a third invention entails adding guanidine sulfamate in a prescribed amount.


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