Patents by Inventor Werner Schwaen

Werner Schwaen 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).

  • Method for producing a capacitor dielectric with inner blocking layers
    Patent number: 4192840
    Abstract: A capacitor dielectric with inner blocking layers is disclosed wherein the portion of copper located in intermediate layers between the crystallites is enriched toward the crystallite surfaces. The dielectric is produced by a heating speed of 200.degree. to 800.degree. C./h towards a sinter temperature, and a cooling-off speed of 10.degree. to 100.degree. C./h to about 350.degree. C. below the sinter temperature.
    Type: Grant
    Filed: May 23, 1978
    Date of Patent: March 11, 1980
    Assignee: Siemens Aktiengesellschaft
    Inventors: Helmut Schmelz, Werner Schwaen
  • Capacitor dielectric with internal barrier layers and a method for its production
    Patent number: 4149173
    Abstract: A capacitor dielectric is disclosed with inner blocking layers in which two crystalline main phases are present in about equal portions in order to achieve an improvement in the loss factor of the insulation resistance, the voltage dependency of the dielectric constants and of the insulation resistance, and to achieve tighter manufacturing tolerances.
    Type: Grant
    Filed: December 7, 1977
    Date of Patent: April 10, 1979
    Assignee: Siemens Aktiengesellschaft
    Inventors: Helmut Schmelz, Werner Schwaen
  • Capacitor dielectric with inner blocking layers and method for producing the same
    Patent number: 4131903
    Abstract: A capacitor dielectric with inner blocking layers is disclosed wherein the portion of copper located in intermediate layers between the crystallites is enriched toward the crystallite surfaces. The dielectric is produced by a heating speed of 200 to 800.degree. C/h towards a sinter temperature, and a cooling-off speed of 10 to 100.degree. C/h to about 350.degree. C below the sinter temperature.
    Type: Grant
    Filed: July 14, 1977
    Date of Patent: December 26, 1978
    Assignee: Siemens Aktiengesellschaft
    Inventors: Helmut Schmelz, Werner Schwaen