Patents by Inventor Takahiro Mamiya

Takahiro Mamiya 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: 20230366668
    Abstract: A three-dimensional measurement device includes: an optical system including an optical device that splits an incident light, irradiates a measurement object with a measurement light, irradiates a reference plane with a reference light, and combines at least part of the reflected measurement light with at least part of the reflected reference light to emit a combined light; a first light emitter that emits a first light that has a first wavelength; a second light emitter that emits a second light that has a second wavelength; a first imaging device that takes an image of an output light output from the optical device in which the first light enters; a second imaging device that takes an image of an output light output from the optical device in which the second light enters; and a control device that executes three-dimensional measurement of the measurement object.
    Type: Application
    Filed: July 18, 2023
    Publication date: November 16, 2023
    Applicants: CKD CORPORATION, UTSUNOMIYA UNIVERSITY
    Inventors: Hiroyuki Ishigaki, Tomoru Okada, Ikuo Futamura, Takahiro Mamiya, Yoshio Hayasaki
  • Publication number: 20230204345
    Abstract: A three-dimensional measurement device includes: an irradiator that emits a predetermined light; an optical system that splits the predetermined light into two lights, irradiates a measurement object with a measurement light and irradiates a reference plane with a reference light, and emits a combined light; an imaging device that takes an image of the combined light and obtains an interference fringe image; an objective lens for the measurement light that directs the measurement light toward the measurement object; an objective lens for the reference light that directs the reference light toward the reference plane; an imaging lens that forms an image of the combined light on the imaging device; and a control device that executes three-dimensional measurement of a measurement area on the measurement object based on the interference fringe image.
    Type: Application
    Filed: March 2, 2023
    Publication date: June 29, 2023
    Applicant: CKD CORPORATION
    Inventors: Hiroyuki Ishigaki, Ikuo Futamura, Takahiro Mamiya
  • Patent number: 11118895
    Abstract: A three-dimensional measurement device includes: an optical system that splits incident light into two lights, radiates one of the two lights as measurement light to a measured object and the other of the two lights as reference light to a reference surface, and recombines the two lights into combined light to emit the combined light; a light emitter that emits predetermined light entering the predetermined optical system; an imaging system that takes an image of output light emitted from the optical system; and an image processor that performs three-dimensional measurement of a predetermined measurement area of the measured object based on an interference fringe image obtained by the imaging system. The image processor obtains intensity image data at a predetermined position along an optical axis direction at each coordinate position in the measurement area by reconstruction based on an interference fringe image of the measurement area.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: September 14, 2021
    Assignee: CKD CORPORATION
    Inventors: Hiroyuki Ishigaki, Takahiro Mamiya
  • Patent number: 11054241
    Abstract: A three-dimensional measurement device includes: an optical system that splits incident light into two lights and radiates lights to a measurement object and to a reference surface, and recombines the two lights to emit combined light; a first irradiator that emits first light including first polarized light and entering a first surface; a second irradiator that emits second light including second polarized light and entering a second surface; a first imaging system to which the first output light enters wherein the first output light is emitted from the first surface when the first light enters the first surface; a second imaging system to which the second output light enters wherein the second output light is emitted from the second surface when the second light enters the second surface; and an image processor that performs three-dimensional measurement based on interference fringe images obtained by the first and second imaging systems.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: July 6, 2021
    Assignee: CKD CORPORATION
    Inventors: Hiroyuki Ishigaki, Takahiro Mamiya
  • Patent number: 10782122
    Abstract: A three-dimensional measurement device includes: an optical system that splits incident light into two lights, radiates one of the two lights as measurement light to a measurement object and the other as reference light to a reference surface, and recombines the two lights to emit combined light; a first irradiation unit that emits first light entering the optical system; a second irradiation unit that emits second light entering the optical system; a first imaging unit into which output light that is obtained from the first light and is emitted from the optical system enters; a second imaging unit into which output light that is obtained from the second light and is emitted from the optical system enters; and an image processor that executes three-dimensional measurement of the measurement object, based on interference fringe images taken by the first imaging unit and the second imaging unit.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: September 22, 2020
    Assignee: CKD CORPORATION
    Inventors: Hiroyuki Ishigaki, Takahiro Mamiya
  • Publication number: 20200271434
    Abstract: A three-dimensional measurement device includes: an optical system that splits incident light into two lights, radiates one of the two lights as measurement light to a measured object and the other of the two lights as reference light to a reference surface, and recombines the two lights into combined light to emit the combined light; a light emitter that emits predetermined light entering the predetermined optical system; an imaging system that takes an image of output light emitted from the optical system; and an image processor that performs three-dimensional measurement of a predetermined measurement area of the measured object based on an interference fringe image obtained by the imaging system. The image processor obtains intensity image data at a predetermined position along an optical axis direction at each coordinate position in the measurement area by reconstruction based on an interference fringe image of the measurement area.
    Type: Application
    Filed: May 14, 2020
    Publication date: August 27, 2020
    Applicant: CKD CORPORATION
    Inventors: Hiroyuki Ishigaki, Takahiro Mamiya
  • Patent number: 10704888
    Abstract: A three-dimensional measurement device includes an optical system that: splits an incident light into two lights; radiates one light to a measurement object and the other light to a reference surface; and emits the combined light; a first irradiator that emits a first light that comprises a polarized light of a first wavelength and enters a first element of the optical system; a second irradiator that emits a second light that comprises a polarized light of a second wavelength and enters a second element of the optical system; a first camera that takes an image of the first light emitted from the second element when the first light enters the first element; a second camera that takes an image of the second light emitted from the first element when the second light enters the second element; and an image processor that performs measurement based on the images.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: July 7, 2020
    Assignee: CKD CORPORATION
    Inventors: Hiroyuki Ishigaki, Takahiro Mamiya
  • Patent number: 10514253
    Abstract: A measurement apparatus includes an illumination device irradiating an object with a first and a second pattern, a camera taking image data of the object, a motor displacing the object, and a processor measuring the object, obtaining a first value of the object based on a first number of image data taken with the first pattern at a first number of phases at a first position, obtaining a gain and/or offset based on the first number of image data, obtaining a second value of the object based on the gain and/or offset and a second number of image data taken with the second pattern at a second number of phases at a second position, obtaining height data of the object based on the first and the second value, and obtaining the second value with an average of the gain and/or offset of pixels adjacent to each pixel.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: December 24, 2019
    Assignee: CKD Corporation
    Inventors: Tsuyoshi Ohyama, Norihiko Sakaida, Takahiro Mamiya, Hiroyuki Ishigaki
  • Patent number: 10495438
    Abstract: A measurement device includes: an optical system that splits incident light into two lights to emit one light as measurement light to a measurement object and the other light as reference light to a reference surface, and recombines the two lights to emit combined light; a light emitter that emits light entering the optical system; an imaging system that takes an image of output light emitted from the optical system; and a processor that executes measurement with regard to a predetermined measurement area of the measurement object, based on an interference fringe image taken by the imaging system, wherein the processor: obtains complex amplitude data at a predetermined position in an optical axis direction at predetermined intervals in at least a predetermined range in the optical axis direction, with regard to a specific area set in advance in the measurement area based on the interference fringe image.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: December 3, 2019
    Assignee: CKD CORPORATION
    Inventors: Hiroyuki Ishigaki, Takahiro Mamiya
  • Publication number: 20190219379
    Abstract: A three-dimensional measurement device includes: an optical system that splits incident light into two lights and radiates lights to a measurement object and to a reference surface, and recombines the two lights to emit combined light; a first irradiator that emits first light including first polarized light and entering a first surface; a second irradiator that emits second light including second polarized light and entering a second surface; a first imaging system to which the first output light enters wherein the first output light is emitted from the first surface when the first light enters the first surface; a second imaging system to which the second output light enters wherein the second output light is emitted from the second surface when the second light enters the second surface; and an image processor that performs three-dimensional measurement based on interference fringe images obtained by the first and second imaging systems.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Applicant: CKD Corporation
    Inventors: Hiroyuki Ishigaki, Takahiro Mamiya
  • Publication number: 20190178625
    Abstract: A measurement device includes: an optical system that splits incident light into two lights to emit one light as measurement light to a measurement object and the other light as reference light to a reference surface, and recombines the two lights to emit combined light; a light emitter that emits light entering the optical system; an imaging system that takes an image of output light emitted from the optical system; and a processor that executes measurement with regard to a predetermined measurement area of the measurement object, based on an interference fringe image taken by the imaging system, wherein the processor: obtains complex amplitude data at a predetermined position in an optical axis direction at predetermined intervals in at least a predetermined range in the optical axis direction, with regard to a specific area set in advance in the measurement area based on the interference fringe image.
    Type: Application
    Filed: February 19, 2019
    Publication date: June 13, 2019
    Applicant: CKD CORPORATION
    Inventors: Hiroyuki Ishigaki, Takahiro Mamiya
  • Publication number: 20190094016
    Abstract: A three-dimensional measurement device includes: an optical system that splits incident light into two lights, radiates one of the two lights as measurement light to a measurement object and the other as reference light to a reference surface, and recombines the two lights to emit combined light; a first irradiation unit that emits first light entering the optical system; a second irradiation unit that emits second light entering the optical system; a first imaging unit into which output light that is obtained from the first light and is emitted from the optical system enters; a second imaging unit into which output light that is obtained from the second light and is emitted from the optical system enters; and an image processor that executes three-dimensional measurement of the measurement object, based on interference fringe images taken by the first imaging unit and the second imaging unit.
    Type: Application
    Filed: November 19, 2018
    Publication date: March 28, 2019
    Applicant: CKD Corporation
    Inventors: Hiroyuki Ishigaki, Takahiro Mamiya
  • Patent number: 10215556
    Abstract: A three-dimensional measuring apparatus includes a first irradiating unit, a second irradiating unit, imaging unit that can image a measured object, a first image data acquiring unit that acquires a plurality of image data imaged by the imaging unit under the light pattern irradiated from the first irradiating unit for each predetermined amount of conveyance by the measured object, a three-dimensional measuring unit that three dimensionally measures based on a plurality of image data acquired by the first image data acquiring unit, and a second image data acquiring unit that acquires image data imaged by the imaging unit under the second light irradiated from the second irradiating unit between after predetermined image data from among the plurality of image data acquired by the first image data acquiring unit is imaged and until the next image data is imaged.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: February 26, 2019
    Assignee: CKD Corporation
    Inventor: Takahiro Mamiya
  • Patent number: 10161744
    Abstract: A three-dimensional measurement device includes a light source and grid that irradiate a measurement object; a luminance controller that changes luminance levels of the light; a phase controller that changes phase levels of the light pattern; a camera that takes an image of the measurement object; and a processor that three-dimensionally measures a first measurement object area based on different image data taken by radiating a first light pattern in different phases; determines a relationship between a gain and offset determined according to an imaging condition based on the different image data; and three-dimensionally measures a second measurement object area based on two different image data taken by radiating a second light pattern in two different phases by using a gain and offset regarding each pixel determined according to a luminance value of each pixel in the two different image data and the determined relationship.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: December 25, 2018
    Assignee: CKD Corporation
    Inventors: Tsuyoshi Ohyama, Norihiko Sakaida, Takahiro Mamiya, Hiroyuki Ishigaki
  • Patent number: 10139220
    Abstract: A three-dimensional measurement device includes: a first irradiator that radiates a first light pattern from a first position toward an object; a first grid controller that controls a first grid to change phases of the first light pattern; a second irradiator that radiates a second light pattern from a second position toward the object; a second grid controller that controls the second grid to change phases of the second light pattern; a camera that takes an image of reflected light from the object; and a processor that: performs one of a first imaging process of imaging processes performed by radiation of the first light pattern and a second imaging process of imaging processes performed by radiation of the second light pattern; and subsequently performs the other imaging process without waiting for completion of the transfer or changeover of the first or the second grid involved in the one imaging process.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: November 27, 2018
    Assignee: CKD Corporation
    Inventors: Tsuyoshi Ohyama, Norihiko Sakaida, Takahiro Mamiya, Hiroyuki Ishigaki
  • Publication number: 20180135975
    Abstract: A three-dimensional measurement device includes: a first irradiator that radiates a first light pattern from a first position toward an object; a first grid controller that controls a first grid to change phases of the first light pattern; a second irradiator that radiates a second light pattern from a second position toward the object; a second grid controller that controls the second grid to change phases of the second light pattern; a camera that takes an image of reflected light from the object; and a processor that: performs one of a first imaging process of imaging processes performed by radiation of the first light pattern and a second imaging process of imaging processes performed by radiation of the second light pattern; and subsequently performs the other imaging process without waiting for completion of the transfer or changeover of the first or the second grid involved in the one imaging process.
    Type: Application
    Filed: January 11, 2018
    Publication date: May 17, 2018
    Applicant: CKD Corporation
    Inventors: Tsuyoshi Ohyama, Norihiko Sakaida, Takahiro Mamiya, Hiroyuki Ishigaki
  • Publication number: 20180112974
    Abstract: A three-dimensional measurement device includes a light source and grid that irradiate a measurement object; a luminance controller that changes luminance levels of the light; a phase controller that changes phase levels of the light pattern; a camera that takes an image of the measurement object; and a processor that three-dimensionally measures a first measurement object area based on different image data taken by radiating a first light pattern in different phases; determines a relationship between a gain and offset determined according to an imaging condition based on the different image data; and three-dimensionally measures a second measurement object area based on two different image data taken by radiating a second light pattern in two different phases by using a gain and offset regarding each pixel determined according to a luminance value of each pixel in the two different image data and the determined relationship.
    Type: Application
    Filed: December 21, 2017
    Publication date: April 26, 2018
    Applicant: CKD Corporation
    Inventors: Tsuyoshi Ohyama, Norihiko Sakaida, Takahiro Mamiya, Hiroyuki Ishigaki
  • Publication number: 20180106590
    Abstract: A three-dimensional measurement device includes an optical system that: splits an incident light into two lights; radiates one light to a measurement object and the other light to a reference surface; and emits the combined light; a first irradiator that emits a first light that comprises a polarized light of a first wavelength and enters a first element of the optical system; a second irradiator that emits a second light that comprises a polarized light of a second wavelength and enters a second element of the optical system; a first camera that takes an image of the first light emitted from the second element when the first light enters the first element; a second camera that takes an image of the second light emitted from the first element when the second light enters the second element; and an image processor that performs measurement based on the images.
    Type: Application
    Filed: November 22, 2017
    Publication date: April 19, 2018
    Applicant: CKD Corporation
    Inventors: Hiroyuki Ishigaki, Takahiro Mamiya
  • Publication number: 20170248413
    Abstract: A measurement apparatus includes an illumination device irradiating an object with a first and a second pattern, a camera taking image data of the object, a motor displacing the object, and a processor measuring the object, obtaining a first value of the object based on a first number of image data taken with the first pattern at a first number of phases at a first position, obtaining a gain and/or offset based on the first number of image data, obtaining a second value of the object based on the gain and/or offset and a second number of image data taken with the second pattern at a second number of phases at a second position, obtaining height data of the object based on the first and the second value, and obtaining the second value with an average of the gain and/or offset of pixels adjacent to each pixel.
    Type: Application
    Filed: May 16, 2017
    Publication date: August 31, 2017
    Applicant: CKD Corporation
    Inventors: Tsuyoshi Ohyama, Norihiko Sakaida, Takahiro Mamiya, Hiroyuki Ishigaki
  • Patent number: 9417053
    Abstract: A three-dimensional measuring device includes an extraction unit that extracts an image data set with a brightness value of each of pixels in image data within an effective range from among a plurality of image data sets at each of coordinate positions of an object to be measured, and a three-dimensional measurement unit that performs three-dimensional measurement relating to each of the coordinate positions of the object to be measured based on the extracted image data set. The extraction unit extracts the image data set imaged under a pattern light with the highest irradiation brightness among a plurality of types of pattern lights when there is a plurality of sets of the image data sets with the brightness value of each of the pixels in the image data within the effective range from among the plurality of the image data sets.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: August 16, 2016
    Assignee: CKD Corporation
    Inventors: Takahiro Mamiya, Hiroyuki Ishigaki