Title of Invention | PREPARATION OF RARE EARTH PERMANENT MAGNET MATERIAL |
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Abstract | A method for producing a rare earth permanent magnet material, characterized in that it comprises providing a sintered magnet article comprising an R1-Fe-B based composition (wherein R1 represents one or more selected from the rare earth elements including Y and Sc) and a powder containing one or more selected from an oxide of R2, a fluoride of R3 and an acid fluoride of R4 (wherein R2, R3 and R4 represent one or more selected from the rare earth elements including Y and Sc, respectively), causing the powder to be present on the surface of said magnet article, and subjecting said magnet article and powder to a heat treatment at a temperature of the sintering temperature for said magnet or lower under vacuum or in an inert gas. The above method allows the production of a miniature or thin high performance permanent magnet having a high residual magnet flux density and high coercive force, with high productivity. |
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330-mumnp-2006-abstract(23-03-2006).pdf
330-mumnp-2006-abstract(granted)-(11-6-2010).pdf
330-mumnp-2006-claims(23-03-2006).pdf
330-mumnp-2006-claims(granted)-(11-6-2010).pdf
330-mumnp-2006-correspondence(11-09-2007)pdf.pdf
330-MUMNP-2006-CORRESPONDENCE(19-5-2010).pdf
330-mumnp-2006-correspondence(ipo)-(7-7-2010).pdf
330-mumnp-2006-description(complete)-(23-03-2006).pdf
330-mumnp-2006-description(granted)-(11-6-2010).pdf
330-mumnp-2006-drawing(23-03-2006).pdf
330-mumnp-2006-drawing(granted)-(11-6-2010).pdf
330-mumnp-2006-form 1(23-03-2006).pdf
330-mumnp-2006-form 18(12-9-2007).pdf
330-mumnp-2006-form 18(23-03-2006).pdf
330-mumnp-2006-form 2(23-03-2006).pdf
330-mumnp-2006-form 2(granted)-(11-6-2010).pdf
330-mumnp-2006-form 2(title page)-(23-03-2006).pdf
330-mumnp-2006-form 2(title page)-(granted)-(11-6-2010).pdf
330-mumnp-2006-form 3(23-03-2006).pdf
330-mumnp-2006-form 5(23-03-2006).pdf
330-mumnp-2006-form-pct-isa-210-(23-03-2006).pdf
330-mumnp-2006-general power of attornet(23-03-2006).pdf
330-MUMNP-2006-GENERAL POWER OF ATTORNEY(19-5-2010).pdf
330-mumnp-2006-other document(23-3-2006).pdf
330-mumnp-2006-wo international publication report(11-9-2007).pdf
Patent Number | 240980 | ||||||||||||
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Indian Patent Application Number | 330/MUMNP/2006 | ||||||||||||
PG Journal Number | 25/2010 | ||||||||||||
Publication Date | 18-Jun-2010 | ||||||||||||
Grant Date | 11-Jun-2010 | ||||||||||||
Date of Filing | 23-Mar-2006 | ||||||||||||
Name of Patentee | SHIN-ETSU CHEMICAL CO LTD | ||||||||||||
Applicant Address | 6-1, OTEMACHI 2-CHOME, CHIYODA-KU, TOKYO, 100-0004 | ||||||||||||
Inventors:
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PCT International Classification Number | H01F41/02 | ||||||||||||
PCT International Application Number | PCT/JP05/005134 | ||||||||||||
PCT International Filing date | 2005-03-22 | ||||||||||||
PCT Conventions:
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