Patents by Inventor Shin Usuki

Shin Usuki 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).

  • Lighting method and microscopic observation device
    Patent number: 9297991
    Abstract: Standing wave-generating planar wave illumination units generate two light-wave planar waves using light from a light source assembly and irradiate a sample surface with a standing wave produced by interference of the planar waves on the sample surface. A bias planar wave illumination unit generates a bias planar wave using light from the light source assembly and irradiates the sample surface with the wave. The bias planar wave is synchronized with the standing wave to alternately oscillate to positive and negative with an equal electric field displacement irrespective of the position on the sample surface across a reference time specified in advance when the displacement of the standing wave has a value “0” at the respective positions on the sample surface, and oscillates at a bias amplitude specified in advance to raise the displacement of the standing wave on the sample surface to only a positive or negative displacement.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: March 29, 2016
    Assignees: THE UNIVERSITY OF TOKYO, NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY
    Inventors: Satoru Takahashi, Kiyoshi Takamasu, Ryota Kudo, Shin Usuki
  • LIGHTING METHOD AND MICROSCOPIC OBSERVATION DEVICE
    Publication number: 20150043049
    Abstract: Standing wave-generating planar wave illumination units generate two light-wave planar waves using light from a light source assembly and irradiate a sample surface with a standing wave produced by interference of the planar waves on the sample surface. A bias planar wave illumination unit generates a bias planar wave using light from the light source assembly and irradiates the sample surface with the wave. The bias planar wave is synchronized with the standing wave to alternately oscillate to positive and negative with an equal electric field displacement irrespective of the position on the sample surface across a reference time specified in advance when the displacement of the standing wave has a value “0” at the respective positions on the sample surface, and oscillates at a bias amplitude specified in advance to raise the displacement of the standing wave on the sample surface to only a positive or negative displacement.
    Type: Application
    Filed: February 25, 2013
    Publication date: February 12, 2015
    Inventors: Satoru Takahashi, Kiyoshi Takamasu, Ryota Kudo, Shin Usuki