Method and apparatus for producing granulated powder of rare...

Details Method and apparatus for producing granulated powder of rare... Method and apparatus for producing granulated powder of rare...

2002-11-27

2009-11-24

Wyszomierski, George (Department: 1793)

Metal treatment

Stock

Magnetic

C075S255000, C148S302000

Reexamination Certificate

active

07622010

ABSTRACT:
A method of making a rare-earth alloy granulated powder according to the present invention includes the steps of: preparing a rare-earth alloy powder; generating remanent magnetization in the powder; and granulating the powder by utilizing agglomeration force produced by the remanent magnetization of the powder. Since the agglomeration force produced by the remanent magnetization is utilized, the addition of a granulating agent may be omitted.

REFERENCES:
patent: 4770723 (1988-09-01), Sagawa et al.
patent: 4792368 (1988-12-01), Sagawa et al.
patent: 5000800 (1991-03-01), Sagawa
patent: 5124100 (1992-06-01), Nishii et al.
patent: 5383978 (1995-01-01), Yamamoto et al.
patent: 5575830 (1996-11-01), Yamashita et al.
patent: 5666635 (1997-09-01), Kaneko et al.
patent: 6187259 (2001-02-01), Yamashita et al.
patent: 7214343 (2007-05-01), Kuniyoshi et al.
patent: 0 270 934 (1988-06-01), None
patent: 0429881 (1991-06-01), None
patent: 0991086 (2000-04-01), None
patent: 1020285 (2000-07-01), None
patent: 49-119193 (1974-11-01), None
patent: 51-20593 (1976-02-01), None
patent: 57-124599 (1982-08-01), None
patent: 61-179801 (1986-08-01), None
patent: 63-110521 (1988-07-01), None
patent: 63-237402 (1988-10-01), None
patent: 01-114008 (1989-05-01), None
patent: 1-127643 (1989-05-01), None
patent: 4-100532 (1991-06-01), None
patent: 4-071632 (1992-03-01), None
patent: 06-039267 (1994-02-01), None
patent: 6-28213 (1994-04-01), None
patent: 10-058198 (1998-03-01), None
patent: 10-140202 (1998-05-01), None
patent: 11-131101 (1999-05-01), None
patent: 2001-137684 (2001-05-01), None
Specification and Drawings for Related U.S. Appl. No. 10/473,335, filed Mar. 29, 2004.
Official Communication and Translation of Official Communication, Issued Aug. 1, 2005, German patent application file No. 102 97 484.5-24.
Kishimoto, et al. “Magnetic properties of sintered sendust alloys using powders granulated by spray drying method”, Journal of Materials Science; vol. 38, No. 16; Abstract; Aug. 2003.

Affiliated with

Also associated with

Rating

Method and apparatus for producing granulated powder of rare... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for producing granulated powder of rare..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for producing granulated powder of rare... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4084432