Patents by Inventor Klaus Hofmeister

Klaus Hofmeister 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).

  • DRAM memory cell
    Patent number: 6493253
    Abstract: A DRAM memory cell includes a storage capacitor device with two storage capacitors connected in parallel with one another. One of the storage capacitors is a trench capacitor whereas the other one of the storage capacitors is a stacked capacitor.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: December 10, 2002
    Assignee: Infineon Technologies AG
    Inventor: Klaus Hofmeister
  • Dram memory cell
    Publication number: 20020060925
    Abstract: A DRAM memory cell includes a storage capacitor device with two storage capacitors connected in parallel with one another. One of the storage capacitors is a trench capacitor whereas the other one of the storage capacitors is a stacked capacitor.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 23, 2002
    Inventor: Klaus Hofmeister
  • Method for manufacturing frictional locking rings for stepped motor vehicle transmission synchronizing mechanisms
    Patent number: 4931117
    Abstract: A method for manufacturing a frictional locking member, in particular a synchronizing ring. The surface of a metallic base member (2) is provided with a frictional body made of a sintering powder.In order to simplify the method, the base member (2) is combined with an insert member (20). The insert member has centering means (24) for retaining the base member (2) in a defined position and at a defined distance (23) from the counter surface (22) arranged at a defined distance (23) from the surface (14). The cavity (27) formed by the defined distance (23) between the surface (14) and the counter surface (22) is filled with a sintering powder, and the insert member (20) is sintered together with the base member (2) with the cavity (27) filled (FIG. 4).
    Type: Grant
    Filed: November 3, 1987
    Date of Patent: June 5, 1990
    Assignee: ZWN Zahnradwerk Neuenstein GmbH & Co.
    Inventors: Erich R. Muller, Gunther Schmidt, Klaus Hofmeister