Patents by Inventor Lisa Kjellen

Lisa Kjellen 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).

  • Composition for producing soft magnetic composites by powder metallurgy
    Patent number: 8092615
    Abstract: The invention concerns powder compositions consisting of electrically insulated particles of a soft magnetic material of an iron or iron-based powder and 0.1-2% by weight of a lubricant selected from the group consisting of fatty acid amides having 14-22 C atoms. Optionally a thermoplastic binder such as polyphenylene sulphide may be included in the composition. The invention also concerns a method for the preparation of soft magnetic composite components.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: January 10, 2012
    Assignee: Höganäs AB
    Inventors: Lisa Kjellén, Åsa Ahlin, Lars Hultman, Ola Andersson
  • Composition for producing soft magnetic composites by powder metallurgy
    Publication number: 20090152489
    Abstract: The invention concerns powder compositions consisting of electrically insulated particles of a soft magnetic material of an iron or iron-based powder and 0.1-2% by weight of a lubricant selected from the group consisting of fatty acid amides having 14-22 C atoms. Optionally a thermoplastic binder such as polyphenylene sulphide may be included in the composition. The invention also concerns a method for the preparation of soft magnetic composite components.
    Type: Application
    Filed: January 22, 2009
    Publication date: June 18, 2009
    Applicant: HOGANAS AB
    Inventors: Lisa Kjellen, Asa Ahlin, Lars Hultman, Ola Andersson
  • Composition for producing soft magnetic composites by powder metallurgy
    Patent number: 7494600
    Abstract: The invention concerns powder compositions consisting of electrically insulated particles of a soft magnetic material of an iron or iron-based powder and 0.1-2% by weight of a lubricant selected from the group consisting of fatty acid amides having 14-22 C atoms. Optionally a thermoplastic binder such as polyphenylene sulphide may be included in the composition. The invention also concerns a method for the preparation of soft magnetic composite components.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: February 24, 2009
    Assignee: Höganäs AB
    Inventors: Lisa Kjellén, Åsa Ahlin, Lars Hultman, Ola Andersson
  • Composition for producing soft magnetic composites by powder metallurgy
    Publication number: 20050139038
    Abstract: The invention concerns powder compositions consisting of electrically insulated particles of a soft magnetic material of an iron or iron-based powder and 0.1-2% by weight of a lubricant selected from the group consisting of fatty acid amides having 14-22 C atoms. Optionally a thermoplastic binder such as polyphenylene sulphide may be included in the composition. The invention also concerns a method for the preparation of soft magnetic composite components.
    Type: Application
    Filed: December 20, 2004
    Publication date: June 30, 2005
    Applicant: HOGANAS AB
    Inventors: Lisa Kjellen, Asa Ahlin, Lars Hultman, Ola Andersson