Patents by Inventor Kiyomatsu Ito

Kiyomatsu Ito 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: 4109405
    Abstract: A capsule lamp as a fishing tackle in which an electric circuit connecting a light bulb and a battery across a switching mechanism is opened or closed in response to water pressure acting on a diaphragm adapted to be deformed by the water pressure into pressing engagement with the switching mechanism.
    Type: Grant
    Filed: May 3, 1977
    Date of Patent: August 29, 1978
    Inventor: Kiyomatsu Ito