Patents by Inventor Richard William Rudberg

Richard William Rudberg 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 of manufacturing crystal of silicon using an electric potential
    Patent number: 6228165
    Abstract: A method of manufacturing a crystal of silicon in accordance with a Czochralski method, includes the steps of applying an electric potential across a quartz crucible containing a silicon melt, and pulling a crystal of silicon from the silicon melt.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: May 8, 2001
    Assignee: Seh America, Inc.
    Inventors: Masahiko Baba, Scott Matthew Kirkland, Richard William Rudberg, Susumu Sonokawa, Darren Mark Taie, Akira Uchikawa