Patents by Inventor Hilario Haruomi Kobayashi

Hilario Haruomi Kobayashi 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).

  • Method and apparatus for detecting photoacoustic signal to detect surface and subsurface information of the specimen
    Patent number: 5781294
    Abstract: A method and an apparatus for detecting a photoacoustic signal are provided which irradiate an excitation light beam, modulated by a desired frequency, simultaneously to a plurality of points being measured on a surface of a sample, irradiate the excitation light and a probe light simultaneously to the plurality of the points being measured, detect an interference light of a reflected light beam of the probe light and a specified reference light with a detector made up of a plurality of photoelectric converting elements corresponding to the respective points being measured, the detector being in conjugate relation with the surface of the sample, detect a thermal distortion of the frequency component equal to the intensity-modulated frequency at the plurality of the points being measured from the interference light intensity signal detected by the detector, and detect information relative to the surface and the subsurface of the measuring points on the sample from the thermal distortion of the frequency compon
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: July 14, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Toshihiko Nakata, Takanori Ninomiya, Hilario Haruomi Kobayashi, Kazushi Yoshimura