Patents by Inventor Kenji MARUNO

Kenji MARUNO 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).

  • Publication number: 20200166327
    Abstract: Provided is a shape measurement system in order to perform three-dimensional measurement corresponding to a measurement object having various shapes, which includes a measurement probe, a probe tip unit, and a calculation unit. The probe tip unit includes an optical element that is configured to irradiate an object with measurement light, a fixing mechanism that is configured to fix to the measurement probe so as to be detachable and replaceable, and a cylindrical unit that is configured to lock the optical element and is provided with the fixing mechanism.
    Type: Application
    Filed: November 25, 2019
    Publication date: May 28, 2020
    Applicant: HITACHI, LTD.
    Inventors: Tatsuo HARIYAMA, Masahiro WATANABE, Atsushi TANIGUCHI, Kenji MARUNO
  • Publication number: 20200041259
    Abstract: An object is to provide a technology capable of realizing miniaturizing of a measurement unit in a distance measuring device. The distance measuring device including a light emitting unit that outputs measurement light, a polarization state control unit that controls polarization of the measurement light output from the light emitting unit, and an optical path switching element that selectively emits the measurement light controlled by the polarization state control unit, in which the polarization state control unit controls the polarization so as to emit the measurement light in a plurality of directions from the optical path switching element, and the optical path switching element receives reflected light with respect to an object of the measurement light emitted from the optical path switching element, the reflected light being used to measure a distance to the object.
    Type: Application
    Filed: May 22, 2018
    Publication date: February 6, 2020
    Inventors: Masahiro WATANABE, Tatsuo HARIYAMA, Atsushi TANIGUCHI, Kenji MARUNO
  • Publication number: 20200018823
    Abstract: A distance measuring device includes a light emitting unit that outputs a measurement light, a first polarization state control unit that controls a polarization state of the measurement light output from the light emitting unit, a second polarization state control unit that controls the polarization state of the measurement light of which a polarization state is controlled by the first polarization state control unit, and an optical path switching element that selects an emission direction of the measurement light of which a polarization state is controlled by the second polarization state control unit, in which the second polarization state control unit controls the polarization state of the measurement light so that the measurement lights are emitted from the optical path switching element in a plurality of the emission directions, and the optical path switching element receives a reflected light obtained by reflecting the emitted measurement light by an object.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 16, 2020
    Applicant: HITACHI, LTD.
    Inventors: Kenji MARUNO, Masahiro WATANABE, Yuta URANO, Tatsuo HARIYAMA, Atsushi TANIGUCHI