Patents by Inventor Yuji SHIRANE

Yuji SHIRANE 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: 20200300753
    Abstract: A spectral curve acquiring device comprising: a light receiving optical system (6) for irradiating an irradiating light, a light receiving optical system (8) for dispersing and receiving a reflected irradiating light reflected by an object to be measured (7), a distance meter (4) for measuring a distance to the object to be measured, a storage module (25) for storing a plurality of reference spectral curves prepared based on a light receiving intensity for each wavelength at the time of measuring a white reference plate with different distances, and a control arithmetic module (24), wherein the control arithmetic module obtains a light receiving intensity of the dispersed reflected irradiating light for each wavelength based on the reference spectral curve corresponding to a distance to be measured, corrects a measurement spectral curve prepared based on the light receiving intensity, and prepares a spectral reflectance curve.
    Type: Application
    Filed: March 24, 2017
    Publication date: September 24, 2020
    Inventors: Issei Hanya, Shugo Akiyama, Ryosuke Tomizawa, Naoto Kasori, Yoshimitsu Nakajima, Yuji Shirane, Satoshi Suenaga
  • Patent number: 10345232
    Abstract: A method of measuring a state of concrete includes emitting an irradiation light to the concrete, the irradiation light including a wavelength range of near infrared light related to concrete measurement; and receiving a reflection light of the irradiation light P reflected on the concrete. At least five wavelengths ?1 to ?5, ?6 to ?10, different from each other by PLS regression analysis within a wavelength range of 900 nm to 2500 nm of absorption spectrum, are determined, and a degree of neutralization of the concrete caused by calcium hydroxide and a concentration of chloride ion is estimated.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: July 9, 2019
    Assignee: TOPCON CORPORATION
    Inventors: Kaoru Kumagai, Shugo Akiyama, Issei Hanya, Peng Zhao, Masashi Funahashi, Yoshimitsu Nakajima, Yuji Shirane
  • Publication number: 20190017929
    Abstract: To provide a method of measuring a state of concrete capable of easily determining or measuring deterioration of the concrete without using a spectroscopy while maintaining the estimation accuracy. The method of the present disclosure emits an irradiation light to the concrete, the irradiation light including a wavelength range of near infrared light related to concrete measurement; and receives a reflection light of the irradiation light P reflected on the concrete. The method determines at least five wavelengths ?1 to ?5, ?6 to ?10, different from each other by PLS regression analysis within a wavelength range of 900 nm to 2500 nm of absorption spectrum, and estimates a degree of neutralization of the concrete caused by calcium hydroxide and a concentration of chloride ion.
    Type: Application
    Filed: December 21, 2016
    Publication date: January 17, 2019
    Inventors: Kaoru KUMAGAI, Shugo AKIYAMA, Issei HANYA, Peng ZHAO, Masashi FUNAHASHI, Yoshimitsu NAKAJIMA, Yuji SHIRANE