Patents by Inventor Wataru Yamaguchi

Wataru Yamaguchi 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: 20210003930
    Abstract: A detection apparatus for detecting a plurality of marks arranged on a substrate is provided. The apparatus includes a stage which supports the substrate, a plurality of detectors arranged apart from each other and configured to detect different marks of the plurality of marks arranged on the substrate, and a processor. For each of predetermined combinations of the detectors, the processor inclines a reference member supported by the stage at an inclination according to information on a position of a detection region and a focal position of each detector, and aligns a reference mark arranged on the reference member with each detector, and the processor obtains a measurement offset value of each of the plurality of detectors based on measurement values each acquired by the alignment performed for each of the plurality of predetermined combinations.
    Type: Application
    Filed: June 29, 2020
    Publication date: January 7, 2021
    Inventor: Wataru Yamaguchi
  • Patent number: 10584401
    Abstract: A rolled aluminum alloy material is provided with excellent strength and press workability and with which a poor and patchy appearance is less likely to occur after the alumite treatment. The rolled aluminum alloy material can be utilized for components of a bicycle crank. The rolled aluminum alloy material has a component composition comprising 0.6-1.4 wt % of Mg, 0.3-1.0 wt % of Si, 0.1-0.5 wt % of Cu, 0.02-0.4 wt % of Cr, and 0.1-0.6 wt % of Mn, and Al and inevitable impurities as the remainder.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: March 10, 2020
    Assignee: Shimano Inc.
    Inventors: Kazunori Kobayashi, Wataru Yamaguchi, Masanori Taniguchi, Toru Iwai
  • Publication number: 20190333661
    Abstract: A sintered magnet contains Sm—Fe—N-based crystal grains and has high coercivity; and a magnetic powder is capable of forming a sintered magnet without lowering the coercivity even if heat is generated in association with the sintering. A sintered magnet comprises a crystal phase composed of a plurality of Sm—Fe—N-based crystal grains and a nonmagnetic metal phase present between the Sm—Fe—N crystal grains adjacent to each other, wherein a ratio of Fe peak intensity IFe to SmFeN peak intensity ISmFeN measured by an X-ray diffraction method is 0.2 or less. A magnetic powder comprises Sm—Fe—N-based crystal particles and a nonmagnetic metal layer covering surfaces of the Sm—Fe—N crystal particles.
    Type: Application
    Filed: July 8, 2019
    Publication date: October 31, 2019
    Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, Murata Manufacturing Co., Ltd.
    Inventors: Kenta TAKAGI, Wataru YAMAGUCHI, Takaaki YOKOYAMA, Kenji SAKAGUCHI, Kazuhiro YOSHII, Yuji YOKOYAMA
  • Publication number: 20190154508
    Abstract: Colorimeter having first and second illumination units disposed symmetrically to a reference line in a prescribed plane, first and second light-receiving parts disposed symmetrically to the reference line in the prescribed plane, a calculation unit for determining color information about a measurement object, and an opposing wall that opposes the measurement object when it is measured. The opposing wall has an abutting part that abuts the measurement object when it is measured. The abutting part has a pair of first abutting parts disposed on two sides of a measurement opening to flank the measurement opening; and a pair of second abutting parts disposed on an orthogonal line orthogonal to a first-abutting-part connection line that connects the pair of first abutting parts to each other, the pair of second abutting parts being disposed on two sides of the first-abutting-part connection line to flank the first-abutting-part connection line.
    Type: Application
    Filed: July 5, 2017
    Publication date: May 23, 2019
    Inventors: Hiroki AOMATSU, Shinichi IIDA, Wataru YAMAGUCHI, Yoshitaka TERAOKA, Yoshihisa ABE
  • Publication number: 20190004466
    Abstract: An image forming apparatus includes a housing, a toner image forming portion, a foil transfer unit, a sheet tray, and a discharge portion. The toner image forming portion is provided in the housing and configured to form a toner image on a sheet. The foil transfer unit is configured to superpose a foil with a surface of the sheet. The sheet tray is installable in the housing in an inserting direction and configured to accommodate a sheet to be supplied to the toner image forming portion. The first discharge portion is configured to discharge the sheet from the foil transfer unit to the outside of the housing in a discharging direction opposite to the inserting direction. The second discharge portion is configured to discharge the sheet from the toner image forming portion to the outside of the housing without passing through the foil transfer unit in the discharge direction.
    Type: Application
    Filed: August 29, 2018
    Publication date: January 3, 2019
    Inventors: Ryosuke Sakai, Hideshi Nishiyama, Isami Fujisawa, Yukiko Kitamura, Takehiro Masuda, Yusuke Ikegami, Wataru Yamaguchi, Yuichi Ikeno
  • Patent number: 9989916
    Abstract: An image forming apparatus having a cartridge, a driver unit, a first universal joint, and a second universal joint, is provided. The cartridge is detachably attached to the image forming apparatus and has a first joint to receive a driving force from the image forming apparatus. The driver unit is configured to supply the driving force to the cartridge. The first universal joint is rotatable about a first axis and extends in a first direction based on the driving force. The second universal joint is coupled with the first universal joint and is rotatable along with the first universal joint. The second universal joint has a second joint coupled with the first joint and is rotatable along with the first joint.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: June 5, 2018
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Wataru Yamaguchi, Masao Ichiyanagi, Yohei Hashimoto
  • Patent number: 9904231
    Abstract: An image-forming apparatus includes a main body, a belt unit detachably attachable to the main body, a coupling and a restricting part. The belt unit includes: a first roller defining an axis extending in an axial direction, a second roller opposing the first roller in a first direction perpendicular to the axial direction, and a belt looped over the first roller and the second roller. The coupling is configured to move in the axial direction to come into engagement with the first roller for inputting a drive force into the first roller. The restricting part is provided on the main body and is configured to restrict the first roller from moving in a second direction perpendicular to the axial direction and the first direction when the belt unit is attached to the main body.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: February 27, 2018
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Wataru Yamaguchi
  • Patent number: 9885668
    Abstract: A surface inspection device includes an opening defining an aperture plane, one or more optical transceivers, and a processor. Each optical transceiver includes a light emitter and a light receiver that are arranged in different directions with respect to the aperture plane when viewed from above a virtual normal line of the aperture plane. The processor acquires detection values from the optical transceivers and calculates an evaluation value of a degree of variation in the detection values.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: February 6, 2018
    Assignee: Konica Minolta, Inc.
    Inventors: Takafumi Komatsu, Yoshihisa Abe, Wataru Yamaguchi, Yosuke Takebe
  • Patent number: 9841323
    Abstract: A spectroscopic unit and spectroscopic device according to the present invention are provided with a filter that is provided with a plurality of optical filter elements disposed in order from the entrance side to the exit side of light under measurement and has different transmission wavelengths corresponding to entrance positions along a first direction. A first optical filter element from among the plurality of optical filter elements is tilted with respect to a second optical filter element disposed adjacently to the first optical filter element as a result of the first optical filter element being rotated by a prescribed angle with a third direction that is perpendicular to both the first direction and s second direction from the entrance side to the exit side as the axis of rotation thereof or being rotated by a prescribed angle with the first direction as the axis of rotation thereof.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: December 12, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Yoshitaka Teraoka, Katsutoshi Tsurutani, Wataru Yamaguchi
  • Publication number: 20170261439
    Abstract: A surface inspection device includes an opening defining an aperture plane, one or more optical transceivers, and a processor. Each optical transceiver includes a light emitter and a light receiver that are arranged in different directions with respect to the aperture plane when viewed from above a virtual normal line of the aperture plane. The processor acquires detection values from the optical transceivers and calculates an evaluation value of a degree of variation in the detection values.
    Type: Application
    Filed: July 21, 2015
    Publication date: September 14, 2017
    Applicant: Konica Minolta, Inc.
    Inventors: Takafumi Komatsu, Yoshihisa Abe, Wataru Yamaguchi, Yosuke Takebe
  • Publication number: 20170261916
    Abstract: An image forming apparatus having a cartridge, a driver unit, a first universal joint, and a second universal joint, is provided. The cartridge is detachably attached to the image forming apparatus and has a first joint to receive a driving force from the image forming apparatus. The driver unit is configured to supply the driving force to the cartridge. The first universal joint is rotatable about a first axis and extends in a first direction based on the driving force. The second universal joint is coupled with the first universal joint and is rotatable along with the first universal joint. The second universal joint has a second joint coupled with the first joint and is rotatable along with the first joint.
    Type: Application
    Filed: December 29, 2016
    Publication date: September 14, 2017
    Inventors: Wataru Yamaguchi, Masao Ichiyanagi, Yohei Hashimoto
  • Patent number: 9625836
    Abstract: An interferometer includes: an optical system configured to generate interfering light by dividing light from a light source, and combining reference light and measurement light; a detector configured to detect the interfering light generated by the optical system; and an optical member configured to give spatial coherence to the light from the light source before the detector detects the light from the light source. The optical member gives higher spatial coherence in a second direction serving as a direction of a line of intersection of a cross section of a beam of the light incident on the optical member, and a plane including optical paths of the light from the light source before being divided by the optical system, the reference light, the measurement light, and the interfering light, than in a first direction perpendicular to the plane.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: April 18, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Wataru Yamaguchi, Takahiro Matsumoto, Hideki Ina
  • Publication number: 20170003639
    Abstract: An image-forming apparatus includes a main body, a belt unit detachably attachable to the main body, a coupling and a restricting part. The belt unit includes: a first roller defining an axis extending in an axial direction, a second roller opposing the first roller in a first direction perpendicular to the axial direction, and a belt looped over the first roller and the second roller. The coupling is configured to move in the axial direction to come into engagement with the first roller for inputting a drive force into the first roller. The restricting part is provided on the main body and is configured to restrict the first roller from moving in a second direction perpendicular to the axial direction and the first direction when the belt unit is attached to the main body.
    Type: Application
    Filed: September 14, 2016
    Publication date: January 5, 2017
    Inventor: Wataru Yamaguchi
  • Patent number: 9506535
    Abstract: An image-forming apparatus includes a main body, a drive source, an image forming section, a coupling and an interlocking mechanism. The image forming section includes a trigger part and a belt unit including: a belt; and a drive roller and a follow roller opposing each other in a first direction perpendicular to an axial direction of the drive roller. The belt is stretched over the drive roller and the follow roller to extend in the first direction. The coupling includes a movable part movable between a transmitting position transmitting a drive force from the drive source to the drive roller and an interrupting position interrupting transmission of the drive force from the drive source to the drive roller. The interlocking mechanism is configured to interlock movement of the movable part between the transmitting position and the interrupting position with movement of the trigger part.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: November 29, 2016
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yohei Hashimoto, Wen Chen, Wataru Yamaguchi
  • Patent number: 9501020
    Abstract: An image forming apparatus including a driving source, a planetary gear mechanism including first, second and third elements, a rotation restraint member configured to switch the planetary gear mechanism between a locked state where rotation of the second element is locked and a released state where the second element is capable of rotating, and a switching mechanism configured to switch the planetary gear mechanism between a first state where any two elements of the first, second and third elements are separated and a second state where the two elements are coupled, wherein the third element is configured to rotate in a first direction when the planetary gear mechanism is in the locked state and first state and to rotate in a second direction opposite to the first direction when the planetary gear mechanism is in the released state and second state.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: November 22, 2016
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Wataru Yamaguchi
  • Patent number: 9487366
    Abstract: A belt conveying device includes: a first roller, a second roller, a belt, a rotatable assembly, and a frame. The first roller has an axis extending in an axial direction. The first roller has a first end portion on a first side in the axial direction and a second end portion on a second side opposite to the first side in the axial direction. The belt is configured to be looped taut around the first roller and the second roller. The rotatable assembly has a first gear and is provided at the first end portion. The rotatable assembly is configured to provide a first position to engage with the first roller and to rotate and a second position to be disengaged from the first roller. The frame has a second gear arranged in a prescribed direction. The second gear engages with the first gear.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: November 8, 2016
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Wataru Yamaguchi
  • Publication number: 20160313183
    Abstract: A spectroscopic unit and spectroscopic device according to the present invention are provided with a filter that is provided with a plurality of optical filter elements disposed in order from the entrance side to the exit side of light under measurement and has different transmission wavelengths corresponding to entrance positions along a first direction. A first optical filter element from among the plurality of optical filter elements is tilted with respect to a second optical filter element disposed adjacently to the first optical filter element as a result of the first optical filter element being rotated by a prescribed angle with a third direction that is perpendicular to both the first direction and s second direction from the entrance side to the exit side as the axis of rotation thereof or being rotated by a prescribed angle with the first direction as the axis of rotation thereof.
    Type: Application
    Filed: September 17, 2014
    Publication date: October 27, 2016
    Applicant: KONICA MINOLTA, INC.
    Inventors: Yoshitaka TERAOKA, Katsutoshi TSURUTANI, Wataru YAMAGUCHI
  • Patent number: 9448528
    Abstract: An image-forming apparatus includes a main body, a belt unit detachably attachable to the main body, a coupling and a first restricting part. The belt unit includes: a first roller defining an axis extending in an axial direction, a second roller opposing the first roller in a first direction perpendicular to the axial direction, and a belt looped over the first roller and the second roller. The coupling is configured to move in the axial direction to come into engagement with the first roller for inputting a drive force into the first roller. The first restricting part is provided on the main body and is configured to restrict the first roller from moving in a second direction perpendicular to the axial direction and the first direction when the belt unit is attached to the main body.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: September 20, 2016
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Wataru Yamaguchi
  • Patent number: 9429472
    Abstract: An illumination device is provided with a light source, a photodetector, and a support structure. The light source, which emits light, has light distribution in which a reference axis serves as an axis of symmetry or light distribution in which a plane including the reference axis serves as a plane of symmetry. A first light beam in the light is guided to the object to be illuminated. A second light beam in the light is guided to the photodetector. The photodetector detects intensity of the second light beam. The light source and the photodetector are supported by the support structure in positions and postures that allow the first light beam and the second light beam to be guided in an aforementioned manner. A traveling direction of the first light beam and a traveling direction of the second light beam make the same angle with the reference axis.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: August 30, 2016
    Assignee: Konica Minolta, Inc.
    Inventors: Shinichi Iida, Wataru Yamaguchi
  • Patent number: D845351
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: April 9, 2019
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Wataru Yamaguchi, Takayuki Fujita