Patents by Inventor Tesshin Yazu

Tesshin Yazu 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
    Patent number: 6657374
    Abstract: A cathode ray tube including a portion whose thickness becomes (2.78+0.0038×D)≦t1≦(3.7+0.0038×D)[mm] where D is a diagonal axis length [mm] between rectangular corner portions of an effective screen of a panel, and t1 is a thickness [mm] at positions which occupy 75% of a length of a body portion extending from a sealing surface of the body portion to a yoke portion along a tube axis direction.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: December 2, 2003
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazushi Nagasawa, Tesshin Yazu, Hideya Ito, Takashi Sugahara, Hiroo Sakamoto, Shiro Takada, Junko Itoh, Masayuki Miyazaki
  • Cathode ray tube device having reinforcing frame
    Patent number: 5304890
    Abstract: A cathode ray tube has a metal funnel welded to a metal skirt. The skirt is reinforced to resist tensile stress. Reinforcement is accomplished by thickening the skirt, or corner portions thereof; by welding one or more reinforcing members to the inside or outside of the skirt; by bending the edges of the skirt and funnel and welding the bent parts together; by welding reinforcing plates to corners of the skirt and winding a tension band around the skirt; or by providing a rigid frame with compression members to press inward on the skirt.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: April 19, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Keitaro Tsukui, Junko Itoh, Kenichi Umino, Kouji Nakamura, Tesshin Yazu