Patents by Inventor Tetsuro Umemoto

Tetsuro Umemoto 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).

  • Holding structure of substrates
    Patent number: 4725920
    Abstract: A multiple substrate assembly has a metallic plate sandwiched in between two printed circuit substrates. The metallic plate has cut and erect segments passing through thru-holes formed in at least one substrate, so that printed circuit paths on the outer surfaces of the substrates can be grounded to the metallic plate.
    Type: Grant
    Filed: October 9, 1985
    Date of Patent: February 16, 1988
    Assignee: Alps Electric Co., Ltd.
    Inventors: Sadayoshi Ijichi, Tetsuro Umemoto