Patents by Inventor Hiroki Mashiko

Hiroki Mashiko 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).

  • Spectroscopic measurement device
    Patent number: 11781978
    Abstract: A spectroscopic measurement apparatus includes a pulsed laser light source that emits pulsed laser light, a beam splitter that splits the pulsed laser light into pump light and probe light, a delay circuit that changes a delay time of the pump light with respect to the probe light, a chopper that intensity-modulates the pump light, a wavelength converter that wavelength-converts the probe light into vacuum ultraviolet light, an optical system that guides the pump light and the wavelength-converted probe light to a sample, and a detector that detects the probe light reflected by the sample.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: October 10, 2023
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Keiko Kato, Hiroki Mashiko, Katsuya Oguri, Hideki Goto
  • Spectroscopic Measurement Device
    Publication number: 20220276158
    Abstract: A spectroscopic measurement apparatus includes a pulsed laser light source that emits pulsed laser light, a beam splitter that splits the pulsed laser light into pump light and probe light, a delay circuit that changes a delay time of the pump light with respect to the probe light, a chopper that intensity-modulates the pump light, a wavelength converter that wavelength-converts the probe light into vacuum ultraviolet light, an optical system that guides the pump light and the wavelength-converted probe light to a sample, and a detector that detects the probe light reflected by the sample.
    Type: Application
    Filed: August 28, 2019
    Publication date: September 1, 2022
    Inventors: Keiko Kato, Hiroki Mashiko, Katsuya Oguri, Hideki Goto