Patents by Inventor Kazuaki Hirabayashi

Kazuaki Hirabayashi 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).

  • Cathode-ray tube and process for producing the same
    Patent number: 6005338
    Abstract: In order to provide a method of producing a cathode ray tube in a manner which well matches with a usual technique of producing a cathode ray tube by forming a spiral high-resistor on an inner face of a glass tube, in an electron gun of which a main focusing lens is configured by the spiral high-resistor, the step of fritting seal rings to both ends of the glass tube in which a hole is opened in the center portion; the step of applying a high-resistor paste to the glass tube, drying the paste, and then forming a spiral structure in the high-resistor film; the step of firing at 420 to 550 deg. C.; and the step of combining other electron gun parts to form the electron gun are included, and the spiral high-resistor is formed by a high-resistor paste in which ruthenium oxide is added to a glass material having a softening point that is lower than the annealing point of the glass tube.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: December 21, 1999
    Assignees: Matsushita Electronics Corporation, Matsushita Electric Industrial Co., Ltd.
    Inventors: Hideharu Omae, Masahiko Konda, Kazuaki Hirabayashi, Mitsuhiro Otani, Shigeo Nakatera