Patents by Inventor Takahiro Yagi

Takahiro Yagi 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: 20240155795
    Abstract: Provided is a heat-dissipating waterproof structure having both excellent heat dissipation ability and high waterproofness. A heat-dissipating waterproof structure (300) provided between a top part (203) of a casing (200) to accommodate a heat source (102) and the heat source (102) includes a water receiving part (301) that guides a liquid having entered into the casing (200) through an outlet (203A) provided in the top part (203) of the casing (200), and a water guide channel (302) that guides the liquid having been guided by the water receiving part (301) to be discharged to outside of a space where the heat source (102) is accommodated, and the water receiving part (301) has at least a sloping surface which gradually becomes higher the further it is from being immediately above the heat source (102).
    Type: Application
    Filed: January 18, 2024
    Publication date: May 9, 2024
    Applicant: NEC Platforms, Ltd.
    Inventors: Takahiro Yagi, Kiyotaka Yokoyama, Akira Katsumata, Wataru Imura
  • Patent number: 11972947
    Abstract: A semiconductor laminate film includes a silicon substrate and a semiconductor layer formed on the silicon substrate and containing silicon and germanium. The semiconductor layer having a surface roughness Rms of 1 nm or less. Further, the semiconductor layer satisfies the following relationship t?0.881×x?4.79 where t represents a thickness (nm) of the semiconductor layer, and x represents a ratio of the number of germanium atoms to a sum of the number of silicon atoms and the number of germanium atoms in the semiconductor layer. Also, the semiconductor layer being a mixed crystal semiconductor layer containing silicon and germanium.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: April 30, 2024
    Assignees: National University Corporation Tokyo University Of Agriculture And Technology, National Institute of Information and Communications Technology
    Inventors: Yoshiyuki Suda, Takahiro Tsukamoto, Akira Motohashi, Kyohei Degura, Katsumi Okubo, Takuma Yagi, Akifumi Kasamatsu, Nobumitsu Hirose, Toshiaki Matsui
  • Patent number: 11910553
    Abstract: Provided is a heat-dissipating waterproof structure having both excellent heat dissipation ability and high waterproofness. A heat-dissipating waterproof structure (300) provided between a top part (203) of a casing (200) to accommodate a heat source (102) and the heat source (102) includes a water receiving part (301) that guides a liquid having entered into the casing (200) through an outlet (203A) provided in the top part (203) of the casing (200), and a water guide channel (302) that guides the liquid having been guided by the water receiving part (301) to be discharged to outside of a space where the heat source (102) is accommodated, and the water receiving part (301) has at least a sloping surface which gradually becomes higher the further it is from being immediately above the heat source (102).
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: February 20, 2024
    Assignee: NEC Platforms, Ltd.
    Inventors: Takahiro Yagi, Kiyotaka Yokoyama, Akira Katsumata, Wataru Imura
  • Patent number: 11877795
    Abstract: A balloon catheter includes a flexible outer cylinder shaft, a holding member connected to a proximal end portion of the outer cylinder shaft, a sealing member that maintains liquid tightness incorporated in the holding member, a flexible inner cylinder shaft, a tube having a Rockwell hardness of R 115 or more, a flexural modulus of 3.0 to 4.5 GPa, and a thickness of 0.06 to 0.12 mm, a push-in member connected to a proximal end portion of the inner cylinder shaft, a pull-out prevention member connected to the push-in member, and a balloon composed of an elastic material and connected to each of the distal end portion of the outer cylinder shaft and the proximal end portion of the inner cylinder shaft, wherein the tube is inserted over the inner cylinder shaft over an area thereof except for a connecting portion between the balloon and the inner cylinder shaft.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: January 23, 2024
    Assignee: Toray Industries, Inc.
    Inventor: Takahiro Yagi
  • Publication number: 20230321755
    Abstract: A laser processing method includes a step of processing a workpiece by relatively moving the workpiece with respect to a plurality of laser spots including a first spot, a second spot, and a third spot which are linearly arranged so that the first spot, the second spot, and the third spot pass through a processing target portion of the workpiece in this order. To a total amount of energy of laser beam in the first spot, the second spot, and the third spot, a ratio of energy in the first spot is not less than 20% and not more than 30%, a ratio of energy in the second spot is not less than 20% and not more than 30%, and a ratio of energy in the third spot is not less than 45% and not more than 55%.
    Type: Application
    Filed: September 10, 2020
    Publication date: October 12, 2023
    Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Takahiro YAGI, Shinichi KAGA, Yujiro WATANABE, Takehisa OKUDA
  • Publication number: 20230169431
    Abstract: A vehicle operation device (1) according to the invention includes: a supply-demand difference processing unit (22) configured to calculate a difference between a demand for a mobility service for moving a person between bases and a supply of the mobility service for each combination of the bases; and an operation plan processing unit (23) configured to transmit the difference to a provider of a vehicle that implements the mobility service for each combination of the bases. The vehicle operation device (1) according to the invention further includes: a demand processing unit (21) configured to acquire the demand from a waiting room of the base, in which the operation plan processing unit (23) transmits an operation plan of the vehicle to the waiting room.
    Type: Application
    Filed: March 10, 2021
    Publication date: June 1, 2023
    Inventors: Yakuma FURUSAWA, Takahiro YAGI, Makoto FUCHIWAKI
  • Patent number: 11597033
    Abstract: A laser processing head includes a laser irradiation part, a collimating optical system for collimating laser light from the laser irradiation part, and a collecting optical system for collecting the laser light after passing through the collimating optical system. An optical system including the collimating optical system and the collecting optical system is configured such that the laser light after passing through the collecting optical system has coma aberration.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: March 7, 2023
    Assignee: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Takahiro Yagi, Hiroshi Oishi, Ryosuke Mitsuoka
  • Publication number: 20230025137
    Abstract: An access port can be connected to a catheter and includes a port body including a liquid storage portion and a diaphragm body covering the liquid storage portion. The port body includes a connection passage connected to the liquid storage portion and allows the liquid storage portion to communicate with the inside of the catheter. In the cross-section along the axial direction of the connection passage at the connection position where the connection passage is connected to the liquid storage portion, the length in the direction perpendicular to the axial direction between the surface of the diaphragm body on the side opposite to the liquid storage portion and the inner surface of the liquid storage portion gradually decreases as it proceeds away from the connection position in the inclined region exceeding half of the liquid storage portion along the axial direction.
    Type: Application
    Filed: February 3, 2021
    Publication date: January 26, 2023
    Inventor: Takahiro Yagi
  • Patent number: 11425843
    Abstract: A heat radiation structure (10) includes a casing (4) configured to accommodate a heating element (1), and a heat-sink type component (2) configured to directly or indirectly absorb heat from the heating element (1), contactlessly face the casing (4), and conduct the heat to the casing (4) via air existing in an internal space of the casing (4), wherein at least either the heat-sink type component (2) or the casing (4) is configured in such a way that, when heat is generated from the heating element (1), a distance between the heat-sink type component (2) and the casing (4) becomes nearer in a region of the internal space (3) in which temperature does not rise relatively easily than in a region of the internal space (3) in which temperature rises relatively easily.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: August 23, 2022
    Assignee: NEC Platforms, Ltd.
    Inventors: Takahiro Yagi, Kiyotaka Yokoyama, Akira Katsumata, Wataru Imura
  • Publication number: 20220154351
    Abstract: An acid solution preparation device is an acid solution preparation device for preparing an acid solution used for pickling of a steel plate, the device including a sealed tank for storing the acid solution, a gas supply part for supplying an oxygen-containing gas from outside of the sealed tank to the sealed tank, and a purge part for discharging a gas in the sealed tank to the outside.
    Type: Application
    Filed: March 22, 2019
    Publication date: May 19, 2022
    Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Kosei TSUJI, Ryusuke NAKATSUKA, Takahiro YAGI, Masashi YOSHIKAWA, Hideaki TAKATANI, Toyoaki YASUI, Takuya HIRATA
  • Patent number: 11224148
    Abstract: A case (2) includes a tubular body (6) extending vertically and a top plate (8) disposed at a top edge of the tubular body (6), the case being capable of accommodating a heat-generating element (5). Upward ventholes (16) for discharging the heated air (P), which is heated by the heat-generating element (5), to the outside are formed in the top plate 8. A partition wall (17) that protrudes downwardly from the top plate (8) is disposed between the upward ventholes (16) and the tubular body (6). An air accumulating part (20) surrounded by the tubular body (6), the top plate (8), and the partition wall (17) is formed.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: January 11, 2022
    Assignee: NEC Platforms, Ltd.
    Inventors: Wataru Imura, Kiyotaka Yokoyama, Akira Katsumata, Takahiro Yagi
  • Patent number: 11219138
    Abstract: A heat dissipation structure capable of improving heat dissipation efficiency and regulating temperature distribution of a surface of a housing is provided. A heat dissipation structure 300 is provided in a housing 200 that accommodates a heat generating source 102 therein, the heat dissipation structure 300 including: top surface parts 213 and 223 opposed to each other, in which the top surface part 213 includes a plurality of concave-shaped parts 213B-F that are aligned, the top surface part 223 includes a plurality of concave-shaped parts 223B-F that are aligned, the concave-shaped parts 213B-F of the top surface part 213 are opposed to the concave-shaped parts 223B-F of the top surface part 223, outlets 213A are formed in the concave-shaped parts 213D, 213E, and 213F, and outlets 223A are formed in the concave-shaped parts 223C, 223D, 223E, and 223F.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: January 4, 2022
    Assignee: NEC Platforms, Ltd.
    Inventor: Takahiro Yagi
  • Patent number: 11172983
    Abstract: A balloon ablation catheter includes a catheter shaft containing a reinforcement wire in a thick section; a balloon provided at an end of the catheter shaft; and a high-frequency electric current electrode arranged in the balloon; which balloon ablation catheter satisfies L>t, wherein L represents the shortest distance from the surface of the reinforcement wire to the surface of the catheter shaft, and t represents the wall thickness of the thinnest portion of the balloon.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: November 16, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Takahiro Yagi, Motoki Takaoka, Akinori Matsukuma
  • Patent number: 11071616
    Abstract: A filter device includes: a core member; a push member; first, second and third tubes; a first restriction member disposed on the first tube and configured to restrict a pushing movement of the third tube to the distal direction; a filter; a ring fixed to the opening; first and second wires, wherein the filter is configured in such a manner that the diameter of the opening is reduced by deformation of the shape of the ring, the deformation being caused by the first wires and the second wires when the push member fixed to the core member is pushed with the push member in contact with the second tube, and in such a manner that the diameter of the opening is expanded by restoration of the ring to the original shape, the restoration being caused by separating the push member fixed to the core member from the second tube.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: July 27, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Hajime Sakakibara, Takahiro Yagi
  • Patent number: 11026705
    Abstract: A filter device is capable of reliably capturing emboli and air bubbles and reliably removing the captured emboli out of the body. The filter device includes: a first tube; a second tube protruding from the first tube; a filter arranged such that the distal end side of the filter in the longitudinal direction forms an opening; a ring fixed to the opening; first wires protruding from the distal end side of the first tube in the longitudinal direction thereof; and second wires protruding from holes in the first tube and fixed to the ring; wherein the opening can be opened and closed in the form of a bag when the proximal end side of the filter in the longitudinal direction is defined as the bottom, and the opening can be closed by pulling the second tube towards the proximal end side in the longitudinal direction.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: June 8, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Hajime Sakakibara, Takahiro Yagi
  • Publication number: 20210153393
    Abstract: A case (2) includes a tubular body (6) extending vertically and a top plate (8) disposed at a top edge of the tubular body (6), the case being capable of accommodating a heat-generating element (5). Upward ventholes (16) for discharging the heated air (P), which is heated by the heat-generating element (5), to the outside are formed in the top plate 8. A partition wall (17) that protrudes downwardly from the top plate (8) is disposed between the upward ventholes (16) and the tubular body (6). An air accumulating part (20) surrounded by the tubular body (6), the top plate (8), and the partition wall (17) is formed.
    Type: Application
    Filed: June 14, 2017
    Publication date: May 20, 2021
    Applicant: NEC Platforms, Ltd.
    Inventors: Wataru IMURA, Kiyotaka YOKOYAMA, Akira KATSUMATA, Takahiro YAGI
  • Publication number: 20210068286
    Abstract: Provided is a heat-dissipating waterproof structure having both excellent heat dissipation ability and high waterproofness. A heat-dissipating waterproof structure (300) provided between a top part (203) of a casing (200) to accommodate a heat source (102) and the heat source(102) includes a water receiving part (301) that guides a liquid having entered into the casing (200) through an outlet (203A) provided in the top part (203) of the casing (200), and a water guide channel (302) that guides the liquid having been guided by the water receiving part (301) to be discharged to outside of a space where the heat source (102) is accommodated, and the water receiving part (301) has at least a sloping surface which gradually becomes higher the further it is from being immediately above the heat source (102).
    Type: Application
    Filed: November 30, 2018
    Publication date: March 4, 2021
    Applicant: NEC Platforms, Ltd.
    Inventors: Takahiro YAGI, Kiyotaka YOKOYAMA, Akira KATSUMATA, Wataru IMURA
  • Publication number: 20210046582
    Abstract: A laser processing head includes a laser irradiation part, a collimating optical system for collimating laser light from the laser irradiation part, and a collecting optical system for collecting the laser light after passing through the collimating optical system. An optical system including the collimating optical system and the collecting optical system is configured such that the laser light after passing through the collecting optical system has coma aberration.
    Type: Application
    Filed: March 23, 2018
    Publication date: February 18, 2021
    Applicant: Primetals Technologies Japan, Ltd.
    Inventors: Takahiro YAGI, Hiroshi OISHI, Ryosuke MITSUOKA
  • Publication number: 20210045806
    Abstract: A balloon catheter includes a flexible outer cylinder shaft, a holding member connected to a proximal end portion of the outer cylinder shaft, a sealing member that maintains liquid tightness incorporated in the holding member, a flexible inner cylinder shaft, a tube having a Rockwell hardness of R 115 or more, a flexural modulus of 3.0 to 4.5 GPa, and a thickness of 0.06 to 0.12 mm, a push-in member connected to a proximal end portion of the inner cylinder shaft, a pull-out prevention member connected to the push-in member, and a balloon composed of an elastic material and connected to each of the distal end portion of the outer cylinder shaft and the proximal end portion of the inner cylinder shaft, wherein the tube is inserted over the inner cylinder shaft over an area thereof except for a connecting portion between the balloon and the inner cylinder shaft.
    Type: Application
    Filed: February 8, 2019
    Publication date: February 18, 2021
    Inventor: Takahiro Yagi
  • Publication number: 20200375065
    Abstract: A heat radiation structure (10) includes a casing (4) configured to accommodate a heating element (1), and a heat-sink type component (2) configured to directly or indirectly absorb heat from the heating element (1), contactlessly face the casing (4), and conduct the heat to the casing (4) via air existing in an internal space of the casing (4), wherein at least either the heat-sink type component (2) or the casing (4) is configured in such a way that, when heat is generated from the heating element (1), a distance between the heat-sink type component (2) and the casing (4) becomes nearer in a region of the internal space (3) in which temperature does not rise relatively easily than in a region of the internal space (3) in which temperature rises relatively easily.
    Type: Application
    Filed: August 8, 2017
    Publication date: November 26, 2020
    Applicant: NEC Platforms, Ltd.
    Inventors: Takahiro YAGI, Kiyotaka YOKOYAMA, Akira KATSUMATA, Wataru IMURA