Patents by Inventor Taku Ezaki

Taku Ezaki 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).

  • Light measuring device
    Patent number: 6404487
    Abstract: A light measurement device that selectively operates in a normal light measurement mode, in which the output from a sensor cell is logarithmically compressed and directly output as an output, or an integration light measurement mode, in which a signal obtained by integrating the output with an integrating circuit is output. In the integration light measurement mode, since the integrated output can be slowly read out after strobo light emission, accurate light measurement can be performed within a predetermined light measurement time even when the number of divisions of the sensor is increased.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: June 11, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoichi Sato, Taku Ezaki