Patents by Inventor Michael Wilharm

Michael Wilharm 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: 5459297
    Abstract: In the implementation of the method for after-treatment of a texture drum wherein a surface structure is generated in the region of a surface with an electron beam, the texture drum, following a charging occurring within a working interval with an electron beam having an energy density that generates a recess, is charged during an after-treatment interval by an electron beam having an energy density which leaves the surface structure essentially as it was formed.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: October 17, 1995
    Assignee: Linotype-Hell AG
    Inventors: Wolfgang Boppel, Gerald Sermund, Michael Wilharm
  • Patent number: 5438179
    Abstract: In the implementation of the method for manufacturing a surface structure in the region of a surface of a texture drum with an electron beam, the texture drum is charged with an electron beam having an energy density that produces the recess during at least two working intervals, and is charged therewith while a recess is being produced in the region of the surface. During at least one intermediate interval separating the working intervals from one another, the surface is charged by an electron beam having an energy density that essentially leaves the recess in terms of its expanse.
    Type: Grant
    Filed: March 24, 1993
    Date of Patent: August 1, 1995
    Assignee: Linotype-Hell AG
    Inventors: Wolfgang Boppel, Gerald Sermund, Michael Wilharm
  • Patent number: 5324912
    Abstract: In the implementation of the method for manufacturing a texture drum, a surface structure is produced in the region of a surface with an electron beam, preceding a charging occurring within a working interval with an electrons beam having an energy density generating a recess, the texture drum is charged during a pre-treatment interval by an electron beam having an energy density that leaves the surface structure essentially as it was formed.
    Type: Grant
    Filed: March 24, 1993
    Date of Patent: June 28, 1994
    Assignee: Linotype-Hell AG
    Inventors: Wolfgang Boppel, Gerald Sermund, Michael Wilharm