Patents by Inventor Hakan Sabel

Hakan Sabel 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).

  • Base webs for printed circuit board production using the foam process and acrylic fibers
    Patent number: 6368698
    Abstract: A printed circuit board is made from at least one non-woven sheet or web layer comprising at least 50% by weight acrylic fibers, with any balance substantially electrically non-conductive fibers, filler, and binder. The sheet or web is preferably made by the foam process, and may contain 60-80% straight polyacrylonitrile fibers and 40-20% fibrillated (pulp) ones. The web or sheet is preferably compressed by thermal calendering so that it has a density of about 0.1-1 grams per cubic centimeter; and the web or sheet may have a basis weight of between about 20-120 grams per square meter. The web or sheet may also have a 1-40% of substantially electrically non-conductive organic or inorganic binder, or may be substantially binder free.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: April 9, 2002
    Assignee: Ahlstrom Glassfibre Oy
    Inventors: Kay Rokman, Rod Komlenic, Kelly Rennels, Hakan Sabel
  • Base webs for printed circuit board production using the foam process and acrylic fibers
    Publication number: 20010050130
    Abstract: A printed circuit board is made from at least one non-woven sheet or web layer comprising at least 50% by weight acrylic fibers, with any balance substantially electrically non-conductive fibers, filler, and binder. The sheet or web is preferably made by the foam process, and may contain 60-80% straight polyacrylonitrile fibers and 40-20% fibrillated (pulp) ones. The web or sheet is preferably compressed by thermal calendering so that it has a density of about 0.1-1 grams per cubic centimeter; and the web or sheet may have a basis weight of between about 20-120 grams per square meter. The web or sheet may also have a 1-40% of substantially electrically non-conductive organic or inorganic binder, or may be substantially binder free.
    Type: Application
    Filed: January 8, 2001
    Publication date: December 13, 2001
    Applicant: Ahlstrom Glassfibre Oy.
    Inventors: Kay Rokman, Rod Komlenic, Kelly Rennels, Hakan Sabel
  • Base webs for printed circuit board production using the foam process and acrylic fibers
    Patent number: 6258203
    Abstract: A printed circuit board is made from at least one non-woven sheet or web layer comprising at least 50% by weight acrylic fibers, with any balance substantially electrically non-conductive fibers, filler, and binder. The sheet or web is preferably made by the foam process, and may contain 60-80% straight polyacrylonitrile fibers and 40-20% fibrillated (pulp) ones. The web or sheet is preferably compressed by thermal calendering so that it has a density of about 0.1-1 grams per cubic centimeter; and the web or sheet may have a basis weight of between about 20-120 grams per square meter. The web or sheet may also have a 1-40% of substantially electrically non-conductive organic or inorganic binder, or may be substantially binder free.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: July 10, 2001
    Assignee: Ahlstrom Glassfibre Oy
    Inventors: Kay Rokman, Rod Komlenic, Kelly Rennels, Hakan Sabel