Rare earth metal-based permanent magnet, and process for...

Details Rare earth metal-based permanent magnet, and process for... Rare earth metal-based permanent magnet, and process for...

2006-05-30

2006-05-30

Donovan, Lincoln (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

C335S306000

Reexamination Certificate

active

07053745

ABSTRACT:
A rare earth metal-based permanent magnet has a film layer formed substantially of only a fine metal powder on a metal forming the surface of the magnet. The rare earth metal-based permanent magnet having the film layer on its surface is produced in the following manner: A rare earth metal-based permanent magnet and a fine metal powder forming material are placed into a treating vessel, where both of them are vibrated and/or agitated, whereby a film layer made of a fine metal powder produced from the fine metal powder producing material is formed on a metal forming the surface of the magnet. Thus, the formation of a corrosion-resistant film such as plated film can be achieved at a high thickness accuracy by forming an electrically conductive layer uniformly and firmly on the entire surface of the magnet without use of a third component such as a resin and a coupling agent.

REFERENCES:
patent: 5273782 (1993-12-01), Sagawa et al.
patent: 5302464 (1994-04-01), Nomura et al.
patent: 5476415 (1995-12-01), Nishimura et al.
patent: 5684352 (1997-11-01), Mita et al.
patent: 05-02475 (1992-09-01), None
patent: 61 166116 (1986-07-01), None
patent: 64-55806 (1989-03-01), None
patent: 4-237103 (1992-08-01), None
patent: 07-302705 (1995-11-01), None
patent: 8-186016 (1996-07-01), None
patent: 09 007810 (1997-01-01), None
patent: 09-205013 (1997-08-01), None
patent: 09 205013 (1997-08-01), None
patent: 09 289108 (1997-11-01), None
patent: 11-003811 (1999-01-01), None
patent: 11-195515 (1999-07-01), None
patent: 11-233324 (1999-08-01), None
patent: WO 99/23675 (1999-05-01), None
U.S. Appl. No. 09/529,724, filed May 18, 2000.

Affiliated with

Also associated with

Rating

Rare earth metal-based permanent magnet, and process for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rare earth metal-based permanent magnet, and process for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rare earth metal-based permanent magnet, and process for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3592514