Patents by Inventor Masashi Takeshima

Masashi Takeshima 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).

  • Color cathode ray tube with wire having folded portion
    Patent number: 6603253
    Abstract: In a color cathode ray tube, an electron gun assembly is received in a neck and includes three cathode electrodes, which are heated by heaters, respectively, and a plurality of electrodes. A sealing portion is welded to a stem section of the neck, and stem pins holding the electron gun are buried in the sealing portion. A wire is connected at one end to the stem pin and also connected at the other end to the electrode corresponding to the stem pin so as to electrically connect the electrode to the stem pin. The wire is provided with a folded portion. Even if the wire is thermally expanded, the thermal expansion is absorbed by the folded portion so as to suppress the fluctuation of the cathode current flowing into the electrode.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: August 5, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takahiro Hasegawa, Masashi Takeshima, Hiroyuki Oda
  • Color cathode ray tube
    Publication number: 20010033132
    Abstract: In a color cathode ray tube, an electron gun assembly is received in a neck and includes three cathode electrodes, which are heated by heaters, respectively, and a plurality of electrodes. A sealing portion is welded to a stem section of the neck, and stem pins holding the electron gun are buried in the sealing portion. A wire is connected at one end to the stem pin and also connected at the other end to the electrode corresponding to the stem pin so as to electrically connect the electrode to the stem pin. The wire is provided with a folded portion. Even if the wire is thermally expanded, the thermal expansion is absorbed by the folded portion so as to suppress the fluctuation of the cathode current flowing into the electrode.
    Type: Application
    Filed: April 19, 2001
    Publication date: October 25, 2001
    Inventors: Takahiro Hasegawa, Masashi Takeshima, Hiroyuki Oda