Patents by Inventor Syed H. Safi

Syed H. Safi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Permanent magnets and method of making
    Patent number: 5069713
    Abstract: A non-sintered permanent magnet is formed by a cold compacting technique or by resin bonding using particles of a stoichiometric alloy (e.g. R.sub.2 Fe.sub.14 B where R is at least one rare earth and/or yttrium, particularly La, Ce, Pr, ND or Y or a mixture thereof) which have been coated with a reaction product of the alloy or a non-magnetic metal such as Sn, Ga, Zn, Al, or Cu. The use of a stoichiometric alloy avoids the presence of a reactive grain boundary phase normally present in non-stoichiometric alloys.
    Type: Grant
    Filed: April 4, 1988
    Date of Patent: December 3, 1991
    Assignee: The University of Birmingham
    Inventors: Ivor R. Harris, Syed H. Safi