Patents by Inventor Jay Eunsuk Lee

Jay Eunsuk Lee 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).

  • Patent number: 5956199
    Abstract: A head assembly forming a field replaceable unit (FRU) is assembled and adjusted such that head-to-tape path alignments are accurately made completely independently of an associate tape drive device. The head assembly includes an aluminum base having a magnet and shield assembly attached to a back thereof. A head is attached to a rigid beam with a voice coil formed thereon and the head and beam are flexibly attached to the base with the voice coil functionally located for movement within the magnet assembly. A flag on the beam is sensed by an optical sensor attached to the base such that a horizontal position of the head can be sensed. An azimuth arm is attached to the front of the base having an azimuth and penetration datum affixed thereto. The azimuth arm is moved horizontally in relation to a mount plate of a data cartridge for azimuth adjustment. The penetration datum is adjusted for the penetration alignment relative to the mount plate.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: September 21, 1999
    Assignee: International Business Machines Corporation
    Inventors: Daniel Stewart Husky, John Alexander Koski, Jay Eunsuk Lee
  • Patent number: 5711064
    Abstract: A head assembly forming a field replaceable unit (FRU) is assembled and adjusted such that head-to-tape path alignments are accurately made completely independently of an associate tape drive device. The head assembly includes an aluminum base having a magnet and shield assembly attached to a back thereof. A head os attached to a rigid beam with a voice coil formed thereon and the head and beam are flexibly attached to the base with the voice coil functionally located for movement within the magnet assembly. A flag on the beam is sensed by an optical sensor attached to the base such that a horizontal position of the head can be sensed. An azimuth arm is attached to the front of the base having an azimuth and penetration datum affixed thereto. The azimuth arm is moved horizontally in relation to a mount plate of a data cartridge for azimuth adjustment. The penetration datum is adjusted for the penetration alignment relative to the mount plate.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: January 27, 1998
    Assignee: International Business Machines Corporation
    Inventors: Daniel Stewart Husky, John Alexander Koski, Jay Eunsuk Lee