Patents by Inventor Yuta Kawamoto

Yuta Kawamoto 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: 10916780
    Abstract: A membrane electrode gas diffusion layer assembly for a fuel cell includes a membrane electrode assembly including an electrolyte membrane, an anode catalyst layer, and a cathode catalyst layer, an anode diffusion layer joined to the anode catalyst layer of the membrane electrode assembly, and a cathode diffusion layer joined to the cathode catalyst layer of the membrane electrode assembly, in which at least one of the anode diffusion layer and the cathode diffusion layer includes a microporous layer that makes contact with the membrane electrode assembly, the microporous layer contains a cerium compound, and at least one of the electrolyte membrane, the anode catalyst layer, and the cathode catalyst layer comprises cerium ions.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: February 9, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Junji Nakanishi, Tadashi Kawamoto, Yuta Ikehata, Kyoko Tsusaka, Takashi Asano, Naoki Hasegawa
  • Patent number: 10913236
    Abstract: An intermediate base material is provided that is excellent in the conformity to three-dimensional shapes and that, when formed into a fiber reinforced plastic, develops good surface quality and high mechanical properties. According to one aspect, an incised prepreg is provided that has, in at least a partial region in a prepreg that contains unidirectionally oriented reinforcing fibers and a resin, a plurality of incisions that divide reinforcing fibers, wherein, in the case where a population is made up of the numbers of incisions contained in ten small circular regions of 10 mm in diameter randomly selected in the aforementioned region, a mean value for the population is 10 or greater and a coefficient of variation therefor is within 20%.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: February 9, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Yuzo Fujita, Yuta Naito, Ichiro Taketa, Shiori Kawamoto, Yoshitaka Koyama
  • Publication number: 20210027976
    Abstract: The present disclosure aims at proposing a multi-beam irradiation device capable of correcting off-axis aberrations. In order to achieve the above object, a beam irradiation device is proposed, which includes a beam source which emits a plurality of beams; an objective lens (17) which focuses a beam on a sample; a first lens (16) which is arranged such that a lens main surface is positioned at an object point of the objective lens and deflects a plurality of incident beams toward an intersection point of a lens main surface of the objective lens and an optical axis; a second lens (15) which is arranged closer to a beam source side than the first lens and focuses the plurality of beams on a lens main surface of the first lens; and a third lens (14) which is arranged closer to the beam source side than the second lens and deflects the plurality of beams toward an intersection point of a lens main surface of the second lens and the optical axis.
    Type: Application
    Filed: October 1, 2020
    Publication date: January 28, 2021
    Inventors: Akira IKEGAMI, Yuta KAWAMOTO, Naomasa SUZUKI, Manabu YANO, Yasushi EBIZUKA, Naoma BAN
  • Publication number: 20210000007
    Abstract: A work vehicle includes a cutter device for cutting plant in a field, a storage section for storing plant cut by the cutter device, an inclination angle sensor for detecting an inclination angle ((?d)) of the vehicle body, a display device for displaying the inclination angle detected by the inclination angle sensor, and a reporting device for reporting the inclination angle exceeding a permissible inclination angle ((?a)).
    Type: Application
    Filed: September 22, 2020
    Publication date: January 7, 2021
    Inventors: Kazuyoshi Kawamoto, Eiji Sato, Yuta Horibe, Takashi Kumashiro, Tomohisa Yamamoto, Akihito Mihara
  • Publication number: 20210005417
    Abstract: A charged particle beam application apparatus includes a beam separator. The beam separator includes a first magnetic pole, a second magnetic pole facing the first magnetic pole, a first electrode and a second electrode that extend along an optical axis of a primary beam and are arranged in a first direction perpendicular to the optical axis, on a first surface of the first magnetic pole which faces the second magnetic pole, and a third electrode and a fourth electrode that extend along the optical axis and face the first electrode and the second electrode, respectively, on a second surface of the second magnetic pole which faces the first magnetic pole.
    Type: Application
    Filed: March 30, 2018
    Publication date: January 7, 2021
    Inventors: Yasuhiro Shirasaki, Takashi Dobashi, Momoyo Enyama, Akira Ikegami, Yuta Kawamoto
  • Patent number: 10832886
    Abstract: The present disclosure aims at proposing a multi-beam irradiation device capable of correcting off-axis aberrations. In order to achieve the above object, a beam irradiation device is proposed, which includes a beam source which emits a plurality of beams; an objective lens (17) which focuses a beam on a sample; a first lens (16) which is arranged such that a lens main surface is positioned at an object point of the objective lens and deflects a plurality of incident beams toward an intersection point of a lens main surface of the objective lens and an optical axis; a second lens (15) which is arranged closer to a beam source side than the first lens and focuses the plurality of beams on a lens main surface of the first lens; and a third lens (14) which is arranged closer to the beam source side than the second lens and deflects the plurality of beams toward an intersection point of a lens main surface of the second lens and the optical axis.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: November 10, 2020
    Assignee: Hitachi High-Tech Corporation
    Inventors: Akira Ikegami, Yuta Kawamoto, Naomasa Suzuki, Manabu Yano, Yasushi Ebizuka, Naoma Ban
  • Patent number: 10820492
    Abstract: A work vehicle includes a cutter device for cutting plant in a field, a storage section for storing plant cut by the cutter device, an inclination angle sensor for detecting an inclination angle ((?d)) of the vehicle body, a display device for displaying the inclination angle detected by the inclination angle sensor, and a reporting device for reporting the inclination angle exceeding a permissible inclination angle ((?a)).
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: November 3, 2020
    Assignee: Kubota Corporation
    Inventors: Kazuyoshi Kawamoto, Eiji Sato, Yuta Horibe, Takashi Kumashiro, Tomohisa Yamamoto, Akihito Mihara
  • Publication number: 20200294757
    Abstract: An object of the present disclosure is to provide a charged particle beam apparatus that can quickly find a correction condition for a new aberration that is generated in association with beam adjustment. In order to achieve the above object, the present disclosure proposes a charged particle beam apparatus configured to include an objective lens (7) configured to focus a beam emitted from a charged particle source and irradiate a specimen, a visual field movement deflector (5 and 6) configured to deflect an arrival position of the beam with respect to the specimen, and an aberration correction unit (3 and 4) disposed between the visual field movement deflector and the charged particle source, in which the aberration correction unit is configured to suppress a change in the arrival position of the beam irradiated under different beam irradiation conditions.
    Type: Application
    Filed: February 5, 2020
    Publication date: September 17, 2020
    Inventors: Yuta KAWAMOTO, Akira IKEGAMI, Yasushi EBIZUKA, Nobuo FUJINAGA
  • Publication number: 20200251302
    Abstract: First shape data representing a three-dimensional shape of a sample unit including a sample is generated based on a result of three-dimensional shape measurement of the sample. Second shape data representing a three-dimensional shape of a structure which exists in a sample chamber is generated. Movement of the sample unit is controlled based on the first shape data and the second shape data such that collision of the sample unit with the structure does not occur.
    Type: Application
    Filed: January 29, 2020
    Publication date: August 6, 2020
    Inventors: Yoshikazu Nemoto, Yuta Murakami, Takakuni Maeda, Akira Abe, Masatsugu Kawamoto, Hiroki Mezaki
  • Publication number: 20200185186
    Abstract: To provide a charged particle beam device capable of preventing generation of geometric aberration by aligning axes of electrostatic lenses with high accuracy even when center holes of respective electrodes which constitute the electrostatic lens are not disposed coaxially. The charged particle beam device according to the invention includes an electrostatic lens disposed between an acceleration electrode and an objective lens, wherein at least one of the electrodes which constitutes the electrostatic lens is formed of a magnetic body, and two or more magnetic field generating elements are disposed along an outer periphery of the electrode.
    Type: Application
    Filed: October 25, 2019
    Publication date: June 11, 2020
    Inventors: Yuta KAWAMOTO, Akira IKEGAMI, Masahiro FUKUTA
  • Patent number: 10591647
    Abstract: A transparent resin is injection molded to create a marker (10) as an integrally molded article (lenticular lens portion (11)) including convex surfaces (112) and recesses (113) formed on the rear side of the convex surfaces. The recesses (113) are filled with coating films (115) formed by applying and curing a fluid coating material. Each recess (113) is arranged corresponding to a convex surface (112) so that the coating films (115) can be observed as optically distinguishable from the side of the convex surfaces (112).
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: March 17, 2020
    Assignee: ENPLAS CORPORATION
    Inventors: Tomohiro Saito, Yuta Kawamoto, Yuya Oshima, Mitsuaki Shiota
  • Patent number: 10559450
    Abstract: The present invention enlarges a range of movement of field of view by beam deflection with a simple deflector configuration and suppresses deterioration of a signal electron detection rate caused by the beam deflection. A scanning electron microscope according to the present invention is provided with a first deflection field setting module that sets plural deflectors to move a scanning area on a specimen by a primary electron beam to a position deviated from an axis extended from an electron source toward the center of an objective lens and a second deflection field setting module that sets the plural deflectors so that trajectories of signal electrons are corrected without changing the scanning area set by the first deflection field setting module. The control unit controls the plural deflectors by adding a setting value set by the second deflection field setting module to a setting value set by the first deflection field setting module.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: February 11, 2020
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Noritsugu Takahashi, Yasunari Sohda, Akira Ikegami, Yuta Kawamoto
  • Patent number: 10557971
    Abstract: A transparent resin is injection molded to create a marker (10) as an integrally molded article (lenticular lens portion (11)) including convex surfaces (112) and recesses (113) formed on the rear side of the convex surfaces. The recesses (113) are filled with coating films (115) formed by applying and curing a fluid coating material. Each recess (113) is arranged corresponding to a convex surface (112) so that the coating films (115) can be observed as optically distinguishable from the side of the convex surfaces (112).
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: February 11, 2020
    Assignee: ENPLAS CORPORATION
    Inventors: Tomohiro Saito, Yuta Kawamoto, Yuya Oshima, Mitsuaki Shiota
  • Publication number: 20190393014
    Abstract: The objective of the present invention is to provide a charged-particle beam device capable of moving a field-of-view to an exact position even when moving the field-of-view above an actual sample. In order to attain this objective, a charged-particle beam device is proposed comprising an objective lens whereby a charged-particle beam is focused and irradiated onto a sample: a field-of-view moving deflector for deflecting the charged-particle beam; and a stage onto which the sample is placed.
    Type: Application
    Filed: January 12, 2017
    Publication date: December 26, 2019
    Inventors: Yuta KAWAMOTO, Akira IKEGAMI, Yasushi EBIZUKA, Naoma BAN
  • Patent number: 10508904
    Abstract: This marker comprises a plurality of convex-surface section disposed along the X-axis direction and a plurality of detection sections disposed so as to face the convex-surface sections. Each of the detection sections is located, in the protruding direction of the convex-surface sections, closer to the convex-surface section side than a focal point on an image surface of the convex-surface section of the first optical unit in the X direction and is located on a single plane located further on the opposite side from the protruding direction than the edge of the image surface. The image surface extends from the first optical unit to the nth optical unit in the X direction, where n is at least 2.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: December 17, 2019
    Assignee: Enplas Corporation
    Inventors: Yasuyuki Fukuda, Yuta Kawamoto, Tomohiro Saito
  • Publication number: 20190369301
    Abstract: The present invention provides a marker capable of reducing noises other than a detection target image. The marker (100) of the present invention includes a lens main body (101) that includes multiple lens units (102) and a substrate (106). The lens units (102) are arranged successively in a planar direction. The lens main body (101) has lens portions (103) on one surface side and has multiple detectable portions (105) that can be detected from the one surface side on the other surface side. The lens main body (101) is arranged on the substrate (106). The marker (100) further includes a non-scattering layer (108) between a surface of the substrate (106) on the lens main body (101) side and a surface of the lens main body (101) on the substrate (106) side.
    Type: Application
    Filed: December 14, 2017
    Publication date: December 5, 2019
    Inventors: Ryo SASAKI, Yuta KAWAMOTO, Tomohiro SAITO
  • Patent number: 10446838
    Abstract: Cycle characteristics of a nonaqueous secondary battery are to be improved. An active material including: a first active material that contains a nano silicon produced by heating a layered polysilane represented by a composition formula (SiH)n and having a structure in which multiple six-membered rings formed from silicon atoms are connected; and a second active material that contains a graphite, is used in a negative electrode. With this, expansion and contraction due to stress during charging and discharging can be mitigated, and thereby cycle characteristics improve.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: October 15, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takeshi Kondo, Yusuke Sugiyama, Takashi Mohri, Hiroki Oshima, Tomohiro Niimi, Mutsumi Takahashi, Nobuhiro Goda, Takahiro Sugioka, Yuta Kawamoto
  • Publication number: 20190287754
    Abstract: The present disclosure aims at proposing a multi-beam irradiation device capable of correcting off-axis aberrations. In order to achieve the above object, a beam irradiation device is proposed, which includes a beam source which emits a plurality of beams; an objective lens (17) which focuses a beam on a sample; a first lens (16) which is arranged such that a lens main surface is positioned at an object point of the objective lens and deflects a plurality of incident beams toward an intersection point of a lens main surface of the objective lens and an optical axis; a second lens (15) which is arranged closer to a beam source side than the first lens and focuses the plurality of beams on a lens main surface of the first lens; and a third lens (14) which is arranged closer to the beam source side than the second lens and deflects the plurality of beams toward an intersection point of a lens main surface of the second lens and the optical axis.
    Type: Application
    Filed: March 4, 2019
    Publication date: September 19, 2019
    Inventors: Akira IKEGAMI, Yuta KAWAMOTO, Naomasa SUZUKI, Manabu YANO, Yasushi EBIZUKA, Naoma BAN
  • Publication number: 20190210301
    Abstract: A prepreg, including: a fiber layer containing unidirectionally arranged discontinuous carbon fibers and a thermosetting resin; and a resin layer existing on at least one side of said fiber layer and containing a thermosetting resin and a thermoplastic resin; in which said prepreg contains carbon fibers having an areal weight of fibers of 120 to 300 g/m2, and has a mass fraction of resin of 25 to 50% with respect to the whole mass of said prepreg; and in which a temperature at which a coefficient of interlayer friction is 0.05 or less is in a temperature range of from 40 to 80° C., the interlayer friction being caused at the contact interface between layers of said prepreg when the middle one of three layers that are each made of said prepreg and laid up is pulled out, said coefficient of interlayer friction being measured at 10° C. intervals in a temperature range of from 40 to 80° C. under conditions including a pulling speed of 0.2 mm/min, a perpendicular stress of 0.08 MPa, and a pulling length of 1 mm.
    Type: Application
    Filed: June 23, 2017
    Publication date: July 11, 2019
    Applicant: Toray Industries, Inc.
    Inventors: Yuta Naito, Shiori Kawamoto, Narumichi Sato, Ichiro Taketa, Yuzo Fujita, Takuya Karaki
  • Publication number: 20190178636
    Abstract: This marker comprises a plurality of convex-surface section disposed along the X-axis direction and a plurality of detection sections disposed so as to face the convex-surface sections. Each of the detection sections is located, in the protruding direction of the convex-surface sections, closer to the convex-surface section side than a focal point on an image surface of the convex-surface section of the first optical unit in the X direction and is located on a single plane located further on the opposite side from the protruding direction than the edge of the image surface. The image surface extends from the first optical unit to the nth optical unit in the X direction, where n is at least 2.
    Type: Application
    Filed: July 13, 2017
    Publication date: June 13, 2019
    Inventors: Yasuyuki FUKUDA, Yuta KAWAMOTO, Tomohiro SAITO