Patents by Inventor Mansanari Shindo

Mansanari Shindo 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).

  • Optical seismic detector
    Patent number: 4792931
    Abstract: A detector for detecting the acceleration, the velocity or the displacement of a point is described. The detector includes a light source, at least two photoelectric elements spaced apart from each other over a predetermined distance and a focusing optical system disposed between the light source and the photoelectric elements; the combination being particularly suited for use as an optical seismic detector for detecting and mapping an underground stratum structure.
    Type: Grant
    Filed: September 23, 1986
    Date of Patent: December 20, 1988
    Assignee: Schlumberger Technology Corporation
    Inventors: Katsuhiko Nishida, Mansanari Shindo, Masaharu Suzuki, Masamichi Kondo