Patents by Inventor Ryutaro Soda

Ryutaro Soda 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).

  • Rare earth hexaboride electron-emitting material
    Patent number: 6027670
    Abstract: A rare earth hexaboride electron-emitting material of the formula ReB.sub.6+x, wherein Re is La, Ce or (La+Ce), and 0.05.ltoreq.x.ltoreq.0.20.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: February 22, 2000
    Assignee: National Institute for Research in Inorganic Materials
    Inventors: Shigeki Otani, Ryutaro Soda, Yoshio Ishizawa
  • Rare earth hexaboride electron-emitting material
    Patent number: 5837165
    Abstract: A rare earth hexaboride electron-emitting material of the formula ReB.sub.6+x, wherein Re is La, Ce or (La+Ce) and 0.05.ltoreq.x.ltoreq.0.20.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: November 17, 1998
    Assignee: National Institute for Research in Inorganic Materials
    Inventors: Shigeki Otani, Ryutaro Soda, Yoshio Ishizawa