Patents by Inventor Koichiro Muneki

Koichiro Muneki 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 destribution of headlight beam
    Patent number: 4907877
    Abstract: A method and apparatus for determining or adjusting a projecting direction of a light beam emitted from an automobile headlight is provided. In a first aspect of the present invention, the peripheral region of a light beam is used in determining its projecting direction. In particular, a region definable in a light pattern of the projected beam having a proportionality relation between log S and I, where S indicates the value of an area having light intensity I or above, is determined and its outer contour or any predetermined point in the contour is used in determining the projecting direction. In a second aspect, apparatus for determining a projecting direction of a light beam emitted from an automobile headlight includes an indicator which automatically indicates a predetermined position of a light pattern of the light beam projected.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: March 13, 1990
    Inventors: Yutaka Fukuda, Koji Minagawa, Hiroichi Nabeshima, Koichiro Muneki, Yoshikatsu Asano, Kazuo Aoki, Yutaka Ishizaka