Patents by Inventor Hitoshi OJIKA

Hitoshi OJIKA 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: 20200391453
    Abstract: A device for producing a pultruded article is provided with: a mold in which an intermediate molded article comprising reinforcing fibers impregnated with a thermosetting resin is heated and hardened; and a pultrusion device that causes a pultruded article generated by heating and hardening the intermediate molded article in the mold to be pultruded from the mold. The mold comprises a pressing member that is elastically deformable and that presses the intermediate molded article.
    Type: Application
    Filed: June 26, 2017
    Publication date: December 17, 2020
    Inventors: Shunichi MORISHIMA, Toshio KOZASA, Masatake HATANO, Kazuaki KISHIMOTO, Yukio TAKEUCHI, Masayuki YAMASHITA, Hitoshi OJIKA
  • Publication number: 20200307127
    Abstract: A method for producing a pultruded article includes: a step in which an activation sheet having a sliding surface capable of sliding with the inner surface of a mold is arranged on the surface of an intermediate molded article comprising reinforcing fibers that are impregnated with a thermosetting resin and the intermediate molded article and the activation sheet are introduced into a mold together; and a step in which a pultruded article generated by heating and hardening the intermediate molded article in the mold is pultruded together with the activation sheet from the mold.
    Type: Application
    Filed: June 26, 2017
    Publication date: October 1, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Shunichi MORISHIMA, Toshio KOZASA, Masatake HATANO, Kazuaki KISHIMOTO, Yukio TAKEUCHI, Masayuki YAMASHITA, Hitoshi OJIKA
  • Publication number: 20200282672
    Abstract: A pultrusion material serves as a composite material having a reinforced part that is a part reinforced against a load acting in a load direction. The reinforced part includes: a core material that comprises bundled reinforcing fibers and that is provided so as to extend along the load direction; and a cover section obtained by covering the circumference of the core material with a fiber sheet. The fiber direction of the reinforcing fibers in the core material is oriented along the load direction.
    Type: Application
    Filed: July 4, 2017
    Publication date: September 10, 2020
    Inventors: Shunichi MORISHIMA, Toshio KOZASA, Masatake HATANO, Kazuaki KISHIMOTO, Yukio TAKEUCHI, Masayuki YAMASHITA, Hitoshi OJIKA
  • Publication number: 20200282673
    Abstract: Provided are a method and a device for producing a pultruded material that improve the homogeneity of a thermosetting resin. The device for producing a pultruded material comprises a first opening section, a second opening section, a closing section, a tension-applying section, an impregnating section, and a mold. The first opening section and the second opening section open a bundle of reinforcing fibers and thereby obtain a bundle of reinforcing fibers. The closing section closes the bundle of opened reinforcing fibers and thereby obtains a bundle of reinforcing fibers. The tension-applying section applies tension along the direction in which the reinforcing fibers extend to the bundle of reinforcing fibers that pass through the closing section. The impregnating section impregnates the bundle of reinforcing fibers with a thermosetting resin. The mold pultrudes the bundle of reinforcing fibers that have been impregnated with the thermosetting resin.
    Type: Application
    Filed: June 23, 2017
    Publication date: September 10, 2020
    Inventors: Shunichi MORISHIMA, Toshio KOZASA, Masatake HATANO, Kazuaki KISHIMOTO, Yukio TAKEUCHI, Masayuki YAMASHITA, Hitoshi OJIKA
  • Publication number: 20190308379
    Abstract: This device for producing a pultrusion molded article is provided with: a mold member that heats and cures an intermediate molded article as a result of the mold member contacting an intermediate molded article in which reinforcing fibers are impregnated with a thermosetting resin; a pultrusion device for extracting, in the pultruding direction, the pultrusion molded article formed by heating and curing the intermediate molded article; and a moving device for moving the mold member in the pultruding direction in synchronization with the pultrusion device.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 10, 2019
    Inventors: Shunichi MORISHIMA, Toshio KOZASA, Masatake HATANO, Kazuaki KISHIMOTO, Yukio TAKEUCHI, Masayuki YAMASHITA, Hitoshi OJIKA
  • Publication number: 20190240927
    Abstract: Provided are: a fiber-containing material which has improved strength in an out-of-plane direction without a decrease in strength in an in-plane direction; a method for inserting out-of-plane reinforcement threads; and a method for producing the fiber-containing material. The fiber-containing material contains a base material and out-of-plane reinforcement threads. The base material contains reinforcement fibers extending in a direction along a plane. The out-of-plane reinforcement threads are formed in the base material so as to extend in a direction intersecting the direction along the plane.
    Type: Application
    Filed: June 2, 2017
    Publication date: August 8, 2019
    Inventors: Shunichi MORISHIMA, Toshio KOZASA, Masatake HATANO, Kazuaki KISHIMOTO, Yukio TAKEUCHI, Masayuki YAMASHITA, Hitoshi OJIKA
  • Publication number: 20190217558
    Abstract: A pultrusion material that is a composite material member comprises: a plurality of fiber sheets that extend along a lengthwise direction; and a reinforcement material that is provided to an interior of a corner section formed by the plurality of fiber sheets, wherein the thickness of the corner section where the reinforcement material is provided is comparatively thicker than the thickness of flat sections that are continuous with the corner section. A fiber sheet that is provided to an inner surface of the corner section is provided continuously within the inner surface, and a fiber sheet that is provided to an outer surface of the corner section is provided continuously within the outer surface.
    Type: Application
    Filed: July 14, 2017
    Publication date: July 18, 2019
    Inventors: Shunichi MORISHIMA, Toshio KOZASA, Masatake HATANO, Kazuaki KISHIMOTO, Yukio TAKEUCHI, Masayuki YAMASHITA, Hitoshi OJIKA
  • Publication number: 20190184605
    Abstract: Provided are: a fiber-containing material which has improved strength in an out-of-plane direction without a decrease in strength in an in-plane direction; a method for inserting out-of-plane reinforcement threads; and a method for producing the fiber-containing material. The fiber-containing material contains a base material and out-of-plane reinforcement threads. The base material contains reinforcement fibers extending in a direction along a plane. The out-of-plane reinforcement threads are formed in the base material so as to extend in a direction intersecting the direction along the plane.
    Type: Application
    Filed: June 2, 2017
    Publication date: June 20, 2019
    Inventors: Shunichi MORISHIMA, Toshio KOZASA, Masatake HATANO, Kazuaki KISHIMOTO, Yukio TAKEUCHI, Masayuki YAMASHITA, Hitoshi OJIKA
  • Publication number: 20190160763
    Abstract: This pultrusion material that is a composite material member comprises: a plurality of fiber sheets that extend along a lengthwise direction; and a gap material that is provided to a gap formed by the plurality of fiber sheets, wherein the gap material has a gap fiber sheet including reinforcement fibers that are oriented in a different fiber direction than the lengthwise direction, and has gap reinforcement fibers that are oriented in the same fiber direction as the lengthwise direction. Additionally, the gap reinforcement fibers are provided evenly distributed in a cross-section of the gap material, said cross-section being perpendicular to the lengthwise direction.
    Type: Application
    Filed: July 14, 2017
    Publication date: May 30, 2019
    Inventors: Shunichi MORISHIMA, Toshio KOZASA, Masatake HATANO, Kazuaki KISHIMOTO, Yukio TAKEUCHI, Masayuki YAMASHITA, Hitoshi OJIKA
  • Publication number: 20190087530
    Abstract: A method for designing the cross-sectional shape of the fuselage of a flying body having the fuselage extending in the roll axial direction, the section being taken on a plane perpendicular to the roll axial direction. This method is provided with: an initial setting step S12 for setting an initial cross-sectional shape, which is the initial cross-sectional shape of the fuselage having a cross-sectional shape that is not truly circular; load application steps S14, S21, S28 for analytically or experimentally preloading the fuselage having the initial cross-sectional shape; and a design shape setting step S17 for acquiring the cross-sectional shape of the preloaded fuselage as the design cross-sectional shape of the fuselage.
    Type: Application
    Filed: April 20, 2017
    Publication date: March 21, 2019
    Inventors: Shunichi MORISHIMA, Masatake HATANO, Kiyoshi SUGETA, Toshio KOZASA, Timothy Craig MOMOSE, Takayuki TANI, Hitoshi OJIKA, Masahiko MATSUHASHI, Toshihiko AZUMA