Patents by Inventor Johan B.C. Engelen

Johan B.C. Engelen 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).

  • Publication number: 20140002923
    Abstract: A magnetic tape medium includes at least one servo band along a longitudinal extension of the tape medium which at least one servo band comprises servo patterns organized in servo frames for supporting to determine positional information. At least one of the servo frames includes a first burst comprising at least two servo stripes inclined at a first angle with respect to a direction orthogonal to the longitudinal extension of the tape medium, followed by a second burst including at least two servo stripes inclined at a second angle with respect to a direction orthogonal to the longitudinal extension of the tape medium, which second angle is different from the first angle. At least one of the stripes of the first burst has a first magnetic polarity and at least one of the stripes of the second burst has a second magnetic polarity different from the first magnetic polarity.
    Type: Application
    Filed: June 12, 2013
    Publication date: January 2, 2014
    Inventors: Giovanni Cherubini, Johan B.C. Engelen, Simeon Furrer, Mark A. Lantz
  • Publication number: 20140002928
    Abstract: A tape head system includes a read and/or write head having at least one read and/or write element configured to read from and/or write to magnetic tape and at least one electrostatic element arranged adjacent to the read and/or write element; and a controller configured to apply a potential to the at least one electrostatic element.
    Type: Application
    Filed: June 14, 2013
    Publication date: January 2, 2014
    Inventors: Laurent A. Dellmann, Johan B.C. Engelen, Simeon Furrer, Mark A. Lantz, Hugo E. Rothuizen
  • Publication number: 20130321953
    Abstract: A write head comprising a yoke having at least a first and a second gap and a coil for producing a magnetic field at each gap, the coil comprising a plurality of windings, wherein the windings are arranged so as to produce the same magnetic field strength at each gap and/or along each gap by use of a proximity effect between the windings and a respective gap.
    Type: Application
    Filed: May 13, 2013
    Publication date: December 5, 2013
    Applicant: International Business Machines Corporation
    Inventors: Laurent A. Dellmann, Johan B.C. Engelen, Simeon Furrer, Mark A. Lantz, Hugo E. Rothuizen