Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Reexamination Certificate
2006-10-10
2006-10-10
Vanoy, Timothy (Department: 1754)
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
C423S594100, C423S594300, C423S599000, C423S594140, C423S594160, C423SDIG010, C204S280000, C204S292000, C204S164000, C336S177000, C336S233000, C430S106100, C430S108100
Reexamination Certificate
active
07118728
ABSTRACT:
A method for making ferrite powder may include providing ferrite feed materials in a form of particles having different sizes and irregular shapes, and exposing the ferrite feed materials to a plasma to provide a more spherical shape to irregularly shaped particles to thereby make the ferrite powder. An apparatus for making ferrite powder may include a feeder for ferrite feed materials and a plasma generator for exposing the ferrite feed materials to a plasma.
REFERENCES:
patent: 1946964 (1934-02-01), Cobb
patent: 4071588 (1978-01-01), Fey et al.
patent: 4162283 (1979-07-01), Borer et al.
patent: 4345015 (1982-08-01), Hendriksma et al.
patent: 4766284 (1988-08-01), Cavanagh
patent: 4816292 (1989-03-01), Machida
patent: H639 (1989-06-01), Stern et al.
patent: 4954235 (1990-09-01), Takeshima et al.
patent: 5302306 (1994-04-01), Nagata et al.
patent: 5419994 (1995-05-01), Hongo et al.
patent: 5422216 (1995-06-01), Smith et al.
patent: 5444259 (1995-08-01), Ohmi
patent: 5620643 (1997-04-01), Maiden et al.
patent: 5907077 (1999-05-01), Harashima
patent: 5976488 (1999-11-01), Workman et al.
patent: 6033594 (2000-03-01), Enokido et al.
patent: 6162334 (2000-12-01), Ray et al.
patent: 6332969 (2001-12-01), Ray et al.
patent: 6372119 (2002-04-01), Ray et al.
Patent Abstracts of Japan; “Plasma Treated Magnetic Powder”, Publication No. 57176703 published Oct. 30, 1982; Inventor: Ido Tadashi.
D. Jiles: “Introduction to Magnetism and Magnetic Materials”, 1991, Chapman & Hall. London, publication No. XP-002250637: p. 288, paragraph 2.
Paris Henry G.
Smith Danny R.
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Steward Advanced Materials, Inc.
Vanoy Timothy
LandOfFree
Method and apparatus for making ferrite material products... 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 making ferrite material products..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for making ferrite material products... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3714764