Patents by Inventor Akio Edamoto

Akio Edamoto 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: 4041508
    Abstract: This invention provides a camera of a simple structure installed with an electronic flash. The shutter speed is fixed and the opening of an iris diaphragm alone is variable. Values of the iris diaphragm opening are indicated by pictures so that an appropriate value can easily be selected. Pictures include two kinds, namely pictures of weather marks indicating the weather condition and pictures of distance marks indicating the distance to an object to be photographed. These picture marks are interchanged by "on" and "off" operations of a switch of a power source of the installed electronic flash. More specifically, when the switch is put off, weather marks alone can be seen, and when the switch is put on, distance marks alone can be seen.
    Type: Grant
    Filed: February 25, 1976
    Date of Patent: August 9, 1977
    Assignee: Sunpak Corporation
    Inventors: Akio Edamoto, Tooru Hayakawa