Patents by Inventor Ken Hatta

Ken Hatta 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: 20240135155
    Abstract: In a data processing device, a fixed-point position control unit determines, as first control. The fixed-point position control unit causes a detection calculation unit to perform calculation processing on processing target data at a processing point in time. The saturation rate control unit instructs, as second control to be repeated by the fixed-point position control unit, the fixed-point position control unit to move at least the fixed-point position as control to increase a lower limit saturation rate proportional to a magnitude of a counted lower limit counter value with respect to a result of the first control. The fixed-point position control unit performs, as the second control, a predetermined determination on the basis of the instruction from the saturation rate control unit and the metadata, determines the fixed-point position moved for each layer, and causes calculation processing to be performed.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 25, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Saki HATTA, Hiroyuki UZAWA, Shuhei YOSHIDA, Daisuke KOBAYASHI, Yuya OMORI, Ken NAKAMURA, Koyo NITTA
  • Publication number: 20240119605
    Abstract: A calculation unit (22) sets each frame, of a moving image including a plurality of frames, as a target frame, calculates a motion vector with reference to a reference frame over an entirety of the target frames, and calculates an index indicating a magnitude of change between a key frame and the target frame, which is represented by using the motion vector, a judgement unit (25) judges whether or not the calculated index is equal to or greater than a predetermined threshold value, a first detection unit (27) detects a region indicating an object from the target frame by using an object detection model in a case in which the index is equal to greater than the threshold value, a second detection unit (28) detects a region on the target frame, which is obtained by correcting a position of a region detected in the reference frame by using the motion vector in a case in which the index is less than the threshold value, and an output unit (30) outputs information of the region detected by the first detection unit
    Type: Application
    Filed: February 9, 2021
    Publication date: April 11, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Ken NAKAMURA, Hiroyuki UZAWA, Daisuke KOBAYASHI, Saki HATTA, Yuya OMORI, Shuhei YOSHIDA
  • Patent number: 11597170
    Abstract: Provided is a method for manufacturing a fiber reinforced resin molded article capable of distributing the pressure without concentration on the vicinity of the resin inlet and so preventing the deformation of a preform, and such a manufacturing device thereof. The method lowers a lower core as a moving core in a lower mold (first mold) (away from a preform) to let resin flow toward the lower mold (first mold). This distributes the pressure concentrated in the vicinity of the resin inlet and prevents deformation of the preform.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: March 7, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ken Hatta
  • Publication number: 20230060650
    Abstract: Provided is a method for manufacturing a tank and a manufacturing device thereof that can achieve resin impregnation within a short time. The method wraps fibers in an overlapping manner in a radial direction around an outer surface of a liner such that a first fiber layer (braiding layer) on an outer surface of a dome portion is less dense than a second fiber layer (helical layer) on an outer surface of a straight body portion and such that a portion of a lamina of the first fiber layer, which is less dense, is interposed continuously from the first fiber layer partially between laminae of the second fiber layer, and then impregnates the fiber layer including the first fiber layer and the second fiber layer with a resin.
    Type: Application
    Filed: August 24, 2022
    Publication date: March 2, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ken HATTA
  • Patent number: 11529753
    Abstract: Provided is a method for manufacturing a fiber reinforced resin molded article capable of effectively reducing the occurrence of a preform with poor resin impregnation, and such a manufacturing device thereof. After it is detected that a predetermined amount (the same amount) of resin has been individually poured into a plurality of cavities provided in a mold, the fiber layers of preforms are impregnated (compressively filled) with resin. Pressure sensors for detecting a resin injection amount are used. When closing runners, a small gap is formed in the runners.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: December 20, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ken Hatta
  • Patent number: 11491744
    Abstract: Provided is a method for manufacturing a fiber reinforced resin molded article capable of preventing oxidation and degradation of a liner making up a preform at a high temperature, and such a manufacturing device thereof. Prior to pouring resin into a mold, the method fills inert gas (nitrogen gas, for example) into the mold. After filling inert gas (nitrogen gas, for example) into the mold, the method closes an upper mold (second mold) placed with a gap (second gap) with a preform (i.e., brings it closer to the preform).
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: November 8, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ken Hatta
  • Patent number: 11493172
    Abstract: Provided is a manufacturing method for manufacturing a high-pressure tank by infiltrating resin into a fiber layer of a preform in which the fiber layer is formed on an outer surface a liner. The manufacturing method includes: a first supply step of supplying resin to the fiber layer of the preform; and a second supply step of, after the first supply step, supplying, to the fiber layer, resin to which spherical particles are added.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: November 8, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ken Hatta
  • Patent number: 11491746
    Abstract: Provided is a method for manufacturing a fiber reinforced resin molded article capable of effectively suppressing formation of a weld line, and such a manufacturing device thereof. Even with multiple gates (resin inlets), resin is poured from a second gate (second resin inlet) when resin flow is detected at the second gate (second resin inlet), and then the resin poured from a first gate (first resin inlet) and the resin poured from the second gate (second resin inlet) are made smoothly meet.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: November 8, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ken Hatta
  • Patent number: 11440275
    Abstract: Provided is a method for manufacturing a fiber reinforced resin molded article capable of effectively increasing the strength of a fiber reinforced resin molded article, such as a high-pressure tank, and such a manufacturing device thereof. With use of a cutting core that is heated to a higher temperature than a mold, the curing of a portion of resin (thermosetting resin) to be cut in a runner is facilitated, and the portion of the resin to be cut in the runner is cut by the cutting core. The heating temperature of the cutting core is higher than the temperature of the mold and lower than the heating temperature in an aftercure step performed after removing the high-pressure tank from the mold.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: September 13, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ken Hatta
  • Patent number: 11376803
    Abstract: Provided is a method for manufacturing a fiber reinforced resin molded article capable of detecting a resin impregnation state in a fiber layer of a preform at a position corresponding to a resin flow end portion and uniformly impregnating the fiber layer of the preform with resin, and such a manufacturing device thereof. For example, when a relation between a resin pouring time and a pressure of resin detected by a pressure sensor satisfies a predetermined condition or when the pressure of resin detected by the pressure sensor is higher than or equal to a predetermined value, it is determined that the resin flow end portion of the preform is completely impregnated with resin.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: July 5, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ken Hatta
  • Patent number: 11318686
    Abstract: A manufacturing method for a pressure tank includes disposing a preform, in which a fiber layer is formed on an outer surface of a liner that forms an internal space of a pressure tank, within a mold, and rotating the preform in a circumferential direction within the mold with a central axis of the preform as a rotation center while resin is injected toward the preform disposed within the mold from a gate.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: May 3, 2022
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ken Hatta
  • Patent number: 11254070
    Abstract: A method for producing a high-pressure tank capable of winding a reinforcing fiber bundle around a liner without deteriorating tank performance. The method for producing a high-pressure tank by winding a resin-impregnated strip-shaped reinforcing fiber bundle around a rotating liner so as to form a fiber-reinforced resin layer on the outer surface of the liner includes while winding the strip-shaped reinforcing fiber bundle around the liner, concurrently winding another bundle of fibers narrower than the strip-shaped reinforcing fiber bundle around the liner so as to cross the strip-shaped reinforcing fiber bundle.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: February 22, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ken Hatta
  • Publication number: 20210370577
    Abstract: A method of manufacturing a high-pressure tank includes forming a winding layer on an outer periphery of a liner, to prepare a preform, placing the preform in a mold, and supplying a resin composition to the winding layer, and formation of the winding layer includes winding of a tow prepreg, and winding of a fiber bundle.
    Type: Application
    Filed: April 7, 2021
    Publication date: December 2, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ken HATTA
  • Publication number: 20210332947
    Abstract: Provided is a manufacturing method for manufacturing a high-pressure tank by infiltrating resin into a fiber layer of a preform in which the fiber layer is formed on an outer surface a liner. The manufacturing method includes: a first supply step of supplying resin to the fiber layer of the preform; and a second supply step of, after the first supply step, supplying, to the fiber layer, resin to which spherical particles are added.
    Type: Application
    Filed: March 11, 2021
    Publication date: October 28, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ken HATTA
  • Patent number: 11148351
    Abstract: A manufacturing method for a high-pressure tank is a manufacturing method for a high-pressure tank including a reinforced layer formed such that an electrically conductive fiber bundle impregnated with thermosetting resin is wound around a liner. The manufacturing method includes: a step of preparing the tank in which the uncured reinforced layer is formed on the liner; a first heating step of heating the uncured reinforced layer by low-frequency induction heating so the thermosetting resin is softened; and a second heating step of, after the first heating step, heating the softened reinforced layer by high-frequency induction heating so that the softened reinforced layer is hardened.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: October 19, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ken Hatta
  • Publication number: 20210301094
    Abstract: A manufacturing method of a fiber reinforced resin molded product including: supplying a first resin composition to the fiber layer; and supplying a second resin composition to the fiber layer, after supplying the first resin composition to the fiber layer, in which a curing start temperature of the first resin composition is higher than a curing start temperature of the second resin composition.
    Type: Application
    Filed: March 10, 2021
    Publication date: September 30, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ken HATTA
  • Publication number: 20210299977
    Abstract: A method for manufacturing a high-pressure tank includes: forming a preform by winding a carbon fiber around a liner to form a fiber layer on an outer periphery of the liner; and impregnating the fiber layer of the preform with a curable resin and curing the curable resin. When winding the carbon fiber around the liner, a metal wire together with the carbon fiber is wound around the liner.
    Type: Application
    Filed: February 25, 2021
    Publication date: September 30, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ken HATTA
  • Publication number: 20210299919
    Abstract: Provided is a method for manufacturing a fiber reinforced resin molded article capable of effectively reducing the occurrence of a preform with poor resin impregnation, and such a manufacturing device thereof. After it is detected that a predetermined amount (the same amount) of resin has been individually poured into a plurality of cavities provided in a mold, the fiber layers of preforms are impregnated (compressively filled) with resin. Pressure sensors for detecting a resin injection amount are used. When closing runners, a small gap is formed in the runners.
    Type: Application
    Filed: February 8, 2021
    Publication date: September 30, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ken HATTA
  • Publication number: 20210299979
    Abstract: Provided is a method for manufacturing a fiber reinforced resin molded article capable of detecting a resin impregnation state in a fiber layer of a preform at a position corresponding to a resin flow end portion and uniformly impregnating the fiber layer of the preform with resin, and such a manufacturing device thereof. For example, when a relation between a resin pouring time and a pressure of resin detected by a pressure sensor satisfies a predetermined condition or when the pressure of resin detected by the pressure sensor is higher than or equal to a predetermined value, it is determined that the resin flow end portion of the preform is completely impregnated with resin.
    Type: Application
    Filed: January 26, 2021
    Publication date: September 30, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ken Hatta
  • Publication number: 20210299982
    Abstract: Provided is a method for manufacturing a fiber reinforced resin molded article capable of effectively increasing the strength of a fiber reinforced resin molded article, such as a high-pressure tank, and such a manufacturing device thereof. With use of a cutting core that is heated to a higher temperature than a mold, the curing of a portion of resin (thermosetting resin) to be cut in a runner is facilitated, and the portion of the resin to be cut in the runner is cut by the cutting core. The heating temperature of the cutting core is higher than the temperature of the mold and lower than the heating temperature in an aftercure step performed after removing the high-pressure tank from the mold.
    Type: Application
    Filed: January 27, 2021
    Publication date: September 30, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ken HATTA