Patents by Inventor Asato TAMURA

Asato TAMURA 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).

  • Patent number: 11740453
    Abstract: An apparatus configured to fly a light-absorbing material, includes a unit configured to irradiate a light-absorbing material absorbing light with a laser beam corresponding to a light absorption wavelength of the light-absorbing material to fly the light-absorbing material. When a preceding beam radiation region and a following beam radiation region overlap, the following beam radiation region is irradiated with the laser beam such that a beam centroid position is outside the preceding beam radiation region.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: August 29, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiroyuki Suhara, Takashi Fujita, Atsushi Takeuchi, Kohji Sakai, Asato Tamura, Shohta Kobashigawa
  • Publication number: 20220410608
    Abstract: A substrate having a first pattern formed on a surface or in an inside of the substrate, or on the surface and in the inside of the substrate, wherein the first pattern is constituted by an aggregate of second patterns.
    Type: Application
    Filed: December 11, 2020
    Publication date: December 29, 2022
    Inventors: Rie HIRAYAMA, Shigeaki IMAI, Hiroto TACHIBANA, Nobuyuki ARAI, Yoichi ICHIKAWA, Hirotoshi NAKAYAMA, Shohta KOBASHIGAWA, Asato TAMURA, Takuei NISHIO, Kazuhiro FUJITA, Muneaki IWATA
  • Patent number: 11482826
    Abstract: An optical processing apparatus, an optical processing method, and an optically-processed product production method. The optical processing apparatus and the optical processing method includes emitting a first process light to a focal point set inside an object to be processed, using a first light-emitting unit, and emitting a second process light during a period of time in which plasma or gas is generated inside the object to be processed, by the first process light, using a second light-emitting unit. The processed product production method includes emitting a first process light to a focal point set inside an object to be processed, using a first light-emitting unit, and emitting a second process light during a period in which plasma or gas is generated inside the object to be processed by the first process light, using a second light-emitting unit.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: October 25, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventor: Asato Tamura
  • Patent number: 11225017
    Abstract: Disclosed is a three-dimensional object shaping apparatus for forming an object with a desired shape in a three-dimensional space represented by a three-dimensional orthogonal coordinate system of XYZ. The three-dimensional object shaping apparatus includes a light source; a drive mechanism to move the shaping surface parallel to an XY plane in a Z axis direction; an optical scanning unit to scan light emitted from the light source along a Y axis direction perpendicular to the Z axis; and a rotation mechanism to rotate one of the optical scanning unit and the shaping surface relative to each other with respect to the Z axis as a rotation axis, where a pattern of the light to be applied to the shaping surface is controlled by a combination of a rotation of the shaping surface performed by the rotation mechanism and the scanning of the light performed by the optical scanning unit.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: January 18, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takuei Nishio, Asato Tamura
  • Publication number: 20210402805
    Abstract: A device for applying at least a first energy to a substrate includes a conversion material application unit configured to apply a conversion material for converting a second energy to the first energy to the substrate and an energy application unit configured to apply the second energy to the conversion material applied to the substrate, wherein the second energy corresponds to an amount of heat not less than heat of evaporation of the conversion material.
    Type: Application
    Filed: June 21, 2021
    Publication date: December 30, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Asato TAMURA, Rie HIRAYAMA, Shohta KOBASHIGAWA, Hiroto TACHIBANA, Hirotoshi NAKAYAMA, Yoichi ICHIKAWA
  • Publication number: 20210339469
    Abstract: An apparatus configured to model a three-dimensional modeled object, includes a carrier, an energy applying unit, and a flying unit. The carrier is configured to carry a modeling material. The energy applying unit is configured to apply energy to a surface of a modeled object. The flying unit is configured to fly the modeling material carried on the carrier toward the surface of the modeled object, the energy being applied to the surface.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 4, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Takashi FUJITA, Hiroyuki SUHARA, Kohji SAKAI, Shohta KOBASHIGAWA, Atsushi TAKEUCHI, Asato TAMURA, Ichiro MAEDA, Takuei NISHIO
  • Publication number: 20210094232
    Abstract: An apparatus includes a light emitter configured to emit multiple light beams including at least a first light beam and a second light beam, and an optical scanner configured to scan the multiple light beams. The light emitter is configured to cause an irradiation target to fly by using the first light beam among the multiple light beams.
    Type: Application
    Filed: September 28, 2020
    Publication date: April 1, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroyuki SUHARA, Takashi FUJITA, Asato TAMURA
  • Publication number: 20200379251
    Abstract: An apparatus configured to fly a light-absorbing material, includes a unit configured to irradiate a light-absorbing material absorbing light with a laser beam corresponding to a light absorption wavelength of the light-absorbing material to fly the light-absorbing material. When a preceding beam radiation region and a following beam radiation region overlap, the following beam radiation region is irradiated with the laser beam such that a beam centroid position is outside the preceding beam radiation region.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 3, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroyuki SUHARA, Takashi FUJITA, Atsushi TAKEUCHI, Kohji SAKAI, Asato TAMURA, Shohta KOBASHIGAWA
  • Patent number: 10649221
    Abstract: An optical processing apparatus includes a light source, a condensing lens, and a light shield. The light source emits a light. The condensing lens converts a light emitted from the light source into a Bessel beam and condenses the light onto a surface of an object. The light shield shields an outer edge portion of the light in a cross section of a direction orthogonal to the optical axis of the light. The light shield may shield the outer edge portion of the light after entering the condensing lens and before condensing onto the surface of the object in the cross section of the direction orthogonal to the optical axis of the light.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: May 12, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventor: Asato Tamura
  • Publication number: 20200031052
    Abstract: Disclosed is a three-dimensional object shaping apparatus for forming an object with a desired shape in a three-dimensional space represented by a three-dimensional orthogonal coordinate system of XYZ. The three-dimensional object shaping apparatus includes a light source; a drive mechanism to move the shaping surface parallel to an XY plane in a Z axis direction; an optical scanning unit to scan light emitted from the light source along a Y axis direction perpendicular to the Z axis; and a rotation mechanism to rotate one of the optical scanning unit and the shaping surface relative to each other with respect to the Z axis as a rotation axis, where a pattern of the light to be applied to the shaping surface is controlled by a combination of a rotation of the shaping surface performed by the rotation mechanism and the scanning of the light performed by the optical scanning unit.
    Type: Application
    Filed: July 18, 2019
    Publication date: January 30, 2020
    Inventors: Takuei NISHIO, Asato TAMURA
  • Publication number: 20190221985
    Abstract: An optical processing apparatus, an optical processing method, and an optically-processed product production method. The optical processing apparatus and the optical processing method includes emitting a first process light to a focal point set inside an object to be processed, using a first light-emitting unit, and emitting a second process light during a period of time in which plasma or gas is generated inside the object to be processed, by the first process light, using a second light-emitting unit. The processed product production method includes emitting a first process light to a focal point set inside an object to be processed, using a first light-emitting unit, and emitting a second process light during a period in which plasma or gas is generated inside the object to be processed by the first process light, using a second light-emitting unit.
    Type: Application
    Filed: November 28, 2018
    Publication date: July 18, 2019
    Inventor: Asato TAMURA
  • Publication number: 20180259779
    Abstract: An optical processing apparatus includes a light source, a condensing lens, and a light shield. The light source emits a light. The condensing lens converts a light emitted from the light source into a Bessel beam and condenses the light onto a surface of an object. The light shield shields an outer edge portion of the light in a cross section of a direction orthogonal to the optical axis of the light. The light shield may shield the outer edge portion of the light after entering the condensing lens and before condensing onto the surface of the object in the cross section of the direction orthogonal to the optical axis of the light.
    Type: Application
    Filed: November 28, 2017
    Publication date: September 13, 2018
    Inventor: Asato TAMURA
  • Patent number: 9883068
    Abstract: An imaging unit includes an image pickup element extending along a surface parallel to an imaging surface, a circuit board including a circuit to drive the image pickup element, and a plurality of fixing members to fix the image pickup element and the circuit board. The circuit board includes at least one through hole on a straight line that extends in a longitudinal direction of the image pickup element and is provided with the plurality of the fixing members. The through hole is provided at a position between at least two of the plurality of the fixing members on the straight line.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: January 30, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventor: Asato Tamura
  • Publication number: 20160227065
    Abstract: An imaging unit includes an image pickup element extending along a surface parallel to an imaging surface, a circuit board including a circuit to drive the image pickup element, and a plurality of fixing members to fix the image pickup element and the circuit board. The circuit board includes at least one through hole on a straight line that extends in a longitudinal direction of the image pickup element and is provided with the plurality of the fixing members. The through hole is provided at a position between at least two of the plurality of the fixing members on the straight line.
    Type: Application
    Filed: February 1, 2016
    Publication date: August 4, 2016
    Inventor: Asato TAMURA
  • Patent number: 9228825
    Abstract: An objective is to achieve a positional change measurement device which measures positional change of a dynamic measured surface by using speckle patterns while easily reducing influence of fluctuations in a measurement environment temperature. Provided is a positional change measurement device including: a light source; an illuminating optical system configured to guide light from the light source to a measured surface; an imaging optical system; an image pickup device configured to acquire a speckle pattern by receiving reflection light from the measured surface via the imaging optical system; and detected-length compensation means for compensating for fluctuations in a detected length caused by temperature fluctuations. Positional change of the measured surface is measured based on a result of cross-correlation computation performed on multiple speckle patterns acquired at predetermined time intervals.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: January 5, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Atsushi Takaura, Koji Masuda, Yasuhiro Nihei, Takeshi Ueda, Koichi Kudo, Taku Amada, Kenichi Shimizu, Asato Tamura
  • Publication number: 20140268180
    Abstract: An objective is to achieve a positional change measurement device which measures positional change of a dynamic measured surface by using speckle patterns while easily reducing influence of fluctuations in a measurement environment temperature. Provided is a positional change measurement device including: a light source; an illuminating optical system configured to guide light from the light source to a measured surface; an imaging optical system; an image pickup device configured to acquire a speckle pattern by receiving reflection light from the measured surface via the imaging optical system; and detected-length compensation means for compensating for fluctuations in a detected length caused by temperature fluctuations. Positional change of the measured surface is measured based on a result of cross-correlation computation performed on multiple speckle patterns acquired at predetermined time intervals.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Inventors: Atsushi TAKAURA, Koji MASUDA, Yasuhiro NIHEI, Takeshi UEDA, Koichi KUDO, Taku AMADA, Kenichi SHIMIZU, Asato TAMURA