Patents by Inventor Keizo Kioku

Keizo Kioku 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).

  • Camera system having a flash device capable of performing a high speed synchronized photography
    Patent number: 5860029
    Abstract: A camera system includes a camera device and a flash device. The camera device has a first mode where a control aperture value and a control shutter speed are automatically determined; and a second mode where the operator is allowed to determine either a control aperture value or a control shutter speed. The flash device is capable of emitting an instantaneous flash light and a prolonged flash light. The camera device includes a distance calculator operable to calculate a distance to an object and a light intensity calculator operable to calculate an intensity of a prolonged flash light for flash photography based on the calculated distance, a focal plane shutter having a front blind and a rear blind, and a controller operable to render the flash device emit a prolonged flash light at the calculated intensity from the start of travel of the front blind to the finish of travel of the rear blind.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: January 12, 1999
    Assignee: Minolta Co., Ltd.
    Inventors: Tsutomu Ichikawa, Shigeto Ohmori, Motoshi Yamaguchi, Hiroshi Ootsuka, Keizo Kioku, Atsuhisa Ohno