Patents by Inventor Junichi Tetsu

Junichi Tetsu 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 for manufacturing cathode ray tubes
    Patent number: 4350514
    Abstract: When fusing together a panel having a fluorescent film and a metallic reflective film, and a funnel with an electroconductive film in a baking furnace for manufacturing a cathode ray tube, oxygen containing air is forced into the furnace.
    Type: Grant
    Filed: May 14, 1981
    Date of Patent: September 21, 1982
    Assignee: Hitachi, Ltd.
    Inventors: Masatoshi Akiyama, Shigeki Kitamura, Junichi Tetsu, Koichi Nakazato