Patents by Inventor Yutaka Imahori

Yutaka Imahori 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).

  • Patent number: 4021695
    Abstract: A gaseous discharge display panel of multi-layer construction comprises a transparent front sheet, a rear sheet, an intermediate sheet inserted between the front and rear sheets, said intermediate sheet having a number of elongated recesses for confining a number of discharge spaces extending in a plane of the intermediate sheet in parallel with each other and a number of through holes or recesses for constructing a number of communication channels, a number of anodes each arranged near one of the respective discharge space, a number of hollow cathodes arranged above the rear sheets, the other ends of the discharge spaces being communicated with the hollow cathodes through said communication channels, and a number of fluorescent layers applied on inner surfaces of the recesses formed in the intermediate sheet for confining the discharge spaces. The front, intermediate and rear sheets are connected to each other to form a hermetically sealed envelope and an ionizable gas is contained in the envelope.
    Type: Grant
    Filed: November 19, 1975
    Date of Patent: May 3, 1977
    Assignee: Nippon Hoso Kyokai
    Inventors: Takeo Kamegaya, Ryuichi Kaneko, Hideomi Matsuzaki, Yutaka Imahori