Patents Assigned to Nitta Corporation
  • Publication number: 20240159605
    Abstract: This pressure sensor is configured to detect pressure. The pressure sensor comprises a first sheet member and a second sheet member. The second sheet member is disposed so as to overlie the first sheet member. First and second electrodes are formed on the first sheet member. A third electrode which is covered by a pressure-sensitive electroconductive layer is formed on the second sheet member. When the pressure sensor is being used, a voltage is applied between the first and second electrodes. Regardless of whether the pressure sensor is being used, the first and second electrodes are each in contact with the pressure-sensitive electroconductive layer.
    Type: Application
    Filed: February 25, 2022
    Publication date: May 16, 2024
    Applicant: NITTA CORPORATION
    Inventors: Kengo ISODA, Hisashi YAMAMOTO, Koji IWATA
  • Patent number: 11958948
    Abstract: A rotary member rotatable along a circumferential direction includes: carbon fibers wound in the circumferential direction; a matrix resin in which the carbon fibers are embedded; and a structure which includes a plurality of carbon nanotubes having a bent shape with a bent portion, forms a network structure including a contact portion where the carbon nanotubes are in direct contact with each other, and is provided on surfaces of the carbon fibers.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: April 16, 2024
    Assignee: NITTA CORPORATION
    Inventors: Takuji Komukai, Maki Onizuka
  • Patent number: 11945920
    Abstract: Thermosensitive fine particles of the present invention include a side chain crystal polymer which is crystallized at a temperature lower than a melting point and which exhibits fluidity at a temperature equal to or more than the melting point. The side chain crystal polymer may include, as a monomer component, a (meth)acrylate having a straight-chain alkyl group having 14 or more carbon atoms. A mean particle diameter of the fine particles may be 0.1 to 50 ?m. The thermosensitive fine particles may include no organic solvents.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: April 2, 2024
    Assignee: NITTA CORPORATION
    Inventors: Kosuke Marutani, Satoshi Yamaguchi, Takashi Megumi, Hikaru Ito, Takumi Kato, Koji Yamashita
  • Publication number: 20240060585
    Abstract: A hose coupling 1 includes a nipple 3 in which a tubular part for inserting a hose 2 externally, an annular groove part for inserting a tip of the hose 2, and an attachment part for a separate part are formed in that order along the hose insertion direction A; a nut 4 having a screw part that is screwed onto the outer circumferential surface of the nipple 3 in a state that the tip of the hose 2 is inserted into the annular groove part, and a thickened part that is continuously formed from the screw part and located on the outer circumferential surface of the tubular part; and a sleeve 5 interposed between the tubular part and the thickened part, wherein the sleeve 5 has a thickness reduced part 10 on the inner circumferential surface thereof.
    Type: Application
    Filed: November 24, 2021
    Publication date: February 22, 2024
    Applicant: NITTA CORPORATION
    Inventors: Yuta MAGUCHI, Shunichi NISHIWAKI
  • Publication number: 20240052557
    Abstract: A composite material includes: a base material; a structure which includes a plurality of carbon nanotubes having a bent shape with a bent portion, forms a network structure including a contact portion where the carbon nanotubes are in direct contact with each other, and is provided on a surface of the base material; and a first sizing agent that is provided at least around the contact portion, and cross-links the carbon nanotubes which are in direct contact with each other by a carbodiimide-derived structure obtained by reaction between a functional group of the carbon nanotubes and a carbodiimide group.
    Type: Application
    Filed: November 30, 2021
    Publication date: February 15, 2024
    Applicant: NITTA CORPORATION
    Inventors: Takuji Komukai, Maki Onizuka
  • Patent number: 11898305
    Abstract: A method for producing a composite material, includes: immersing a carbon fiber bundle, including continuous carbon fibers, in a dispersion in which carbon nanotubes are dispersed in water, alcohol, or organic solvent; applying a tensile force to the carbon fibers, which are linearly arranged, using flat rollers; moving the carbon fibers linearly, under the tensile force by the flat rollers, at a constant depth inside the dispersion at a traveling speed of 1 to 20 m/min, such that the carbon nanotubes in the dispersion are adhered to respective surfaces of the carbon fibers; and applying a sizing agent to cover at least a part of the respective surfaces.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: February 13, 2024
    Assignee: NITTA CORPORATION
    Inventors: Maki Onizuka, Takuji Komukai, Daiki Ishii, Jun Inoi
  • Publication number: 20240024998
    Abstract: A wiper 1 of the present invention incudes a belt-like attachment part 2 made of a hard plate such as a metal plate or a plastic plate, and a lip part 3 made of an elastic body and attached to a side surface 21 of the attachment part 2. The side surface 21 of the attachment part 2 and the lip part 3 are vulcanized and bonded in a mold.
    Type: Application
    Filed: November 5, 2021
    Publication date: January 25, 2024
    Applicant: NITTA CORPORATION
    Inventors: Tomohisa SHIMADA, Yoshihiro MIYAGI
  • Publication number: 20230416474
    Abstract: A rotary member rotatable along a circumferential direction includes: carbon fibers wound in the circumferential direction; a matrix resin in which the carbon fibers are embedded; and a structure which includes a plurality of carbon nanotubes having a bent shape with a bent portion, forms a network structure including a contact portion where the carbon nanotubes are in direct contact with each other, and is provided on surfaces of the carbon fibers.
    Type: Application
    Filed: November 30, 2021
    Publication date: December 28, 2023
    Applicant: NITTA CORPORATION
    Inventors: Takuji Komukai, Maki Onizuka
  • Publication number: 20230405168
    Abstract: A decontamination method is a decontamination method for decontaminating the inside of a decontamination target by removing at least one of microorganisms and viruses present in the decontamination target. This decontamination method includes a step of releasing vapor containing peracetic acid into the decontamination target, without releasing mist containing peracetic acid. An average humidity inside the decontamination target during decontamination is RH82% or more. A peracetic acid vapor load that is a value obtained by adding a concentration of peracetic acid in the vapor every minute from a start of decontamination to a completion of decontamination is 2000 ppm or more.
    Type: Application
    Filed: October 1, 2021
    Publication date: December 21, 2023
    Applicant: NITTA CORPORATION
    Inventors: Makoto SHIGETA, Takuji IKEDA
  • Publication number: 20230364285
    Abstract: A decontamination apparatus is configured to perform decontamination for at least one of microorganisms and viruses present inside an object to be decontaminated. A particle removal filter is attached to the inside of the object to be decontaminated. The decontamination apparatus is equipped with a vapor generator unit and a pump. The vapor generator unit is configured to generate vapor containing peracetic acid without heating and without releasing mist. The pump is configured to suck the vapor from the exhaust side of the particle removal filter and to supply the vapor to the air supplying side of the particle removal filter. This decontamination apparatus is used in a state where the decontamination apparatus is disposed outside the object to be decontaminated.
    Type: Application
    Filed: October 1, 2021
    Publication date: November 16, 2023
    Applicant: NITTA CORPORATION
    Inventors: Makoto SHIGETA, Takuji IKEDA
  • Patent number: 11712720
    Abstract: Provided are a wiper for a machine tool and a method for manufacturing a wiper for a machine tool, which can simplify a manufacturing process. A wiper for a machine tool mountable on a machine tool includes: a wiper body fixable to the machine tool, and made of a first elastic material having hardness of 80 degrees or more; and a sliding part made of a second elastic material containing a particulate reinforcing material and having hardness in a range of 50 degrees or more and 90 degrees or less which is smaller than the hardness of the first elastic material, the sliding part being provided integrally with the wiper body, wherein the wiper body and the sliding part are integrally formed without an adhesive.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: August 1, 2023
    Assignee: NITTA CORPORATION
    Inventors: Tomohisa Shimada, Hirofumi Tsujimoto
  • Publication number: 20230237302
    Abstract: An IC tag according to the present invention includes: a base sheet having a first surface and a second surface; an IC chip arranged on the first surface of the base sheet; an antenna that is arranged on the first surface of the base sheet and is configured to electrically transmit and receive information stored in the IC chip; and a protective sheet that is fixed to the first surface of the base sheet via a bonding agent, so as to cover the IC chip and the antenna. The protection sheet has a protruding portion that protrudes along the IC chip.
    Type: Application
    Filed: April 28, 2021
    Publication date: July 27, 2023
    Applicant: NITTA CORPORATION
    Inventors: Toshiharu SHIMAI, Hayato TOMITA, Yoshihiro MIYAGI
  • Publication number: 20230074903
    Abstract: Thermosensitive fine particles of the present invention include a side chain crystal polymer which is crystallized at a temperature lower than a melting point and which exhibits fluidity at a temperature equal to or more than the melting point. The side chain crystal polymer may include, as a monomer component, a (meth)acrylate having a straight-chain alkyl group having 14 or more carbon atoms. A mean particle diameter of the fine particles may be 0.1 to 50 ?m. The thermosensitive fine particles may include no organic solvents.
    Type: Application
    Filed: January 15, 2021
    Publication date: March 9, 2023
    Applicant: NITTA Corporation
    Inventors: Kosuke MARUTANI, Satoshi YAMAGUCHI, Takashi MEGUMI, Hikaru ITO, Takumi KATO, Koji YAMASHITA
  • Publication number: 20230045012
    Abstract: A method for producing a composite material, includes: immersing a carbon fiber bundle, including continuous carbon fibers, in a dispersion in which carbon nanotubes are dispersed in water, alcohol, or organic solvent; applying a tensile force to the carbon fibers, which are linearly arranged, using flat rollers; moving the carbon fibers linearly, under the tensile force by the flat rollers, at a constant depth inside the dispersion at a traveling speed of 1 to 20 m/min, such that the carbon nanotubes in the dispersion are adhered to respective surfaces of the carbon fibers; and applying a sizing agent to cover at least a part of the respective surfaces.
    Type: Application
    Filed: October 10, 2022
    Publication date: February 9, 2023
    Applicant: NITTA CORPORATION
    Inventors: Maki Onizuka, Takuji Komukai, Daiki Ishii, Jun Inoi
  • Publication number: 20230019296
    Abstract: A composite material includes a fiber and a structure including a plurality of carbon nanotubes and having a network structure in which the carbon nanotubes are in direct contact with each other and in which the carbon nanotubes directly adhere to a surface of the fiber. The carbon nanotubes have a bent shape including a bent portion.
    Type: Application
    Filed: November 20, 2020
    Publication date: January 19, 2023
    Applicant: NITTA CORPORATION
    Inventors: Takuji Komukai, Maki Onizuka
  • Publication number: 20220411601
    Abstract: A composite material includes a carbon fiber bundle including a plurality of continuous carbon fibers; and a structure, formed on each of the carbon fibers, including a plurality of carbon nanotubes and having a network structure in which the carbon nanotubes are in direct contact with each other and in which the carbon nanotubes directly adhere to surfaces of the carbon fibers. The carbon nanotubes have a bent shape including a bent portion, and a thickness of the structure is within a range of 50 nm to 200 nm.
    Type: Application
    Filed: November 18, 2020
    Publication date: December 29, 2022
    Applicant: NITTA CORPORATION
    Inventors: Takuji Komukai, Maki Onizuka
  • Publication number: 20220404646
    Abstract: A light shielding member of the present invention includes a first polarizing plate, a second polarizing plate facing the first polarizing plate, and a thermosensitive sheet interposed between the first polarizing plate and the second polarizing plate, in which the first polarizing plate and the second polarizing plate are positioned so that their respective transmission axes are different from each other, and the thermosensitive sheet contains a side chain crystal polymer that crystallizes at a temperature lower than the melting point and exhibits fluidity at a temperature of the melting point or higher. The light shielding member may transmit light at a temperature lower than the melting point and may not transmit light at a temperature of the melting point or higher, when light travels from one of the first polarizing plate and the second polarizing plate toward the other.
    Type: Application
    Filed: September 29, 2020
    Publication date: December 22, 2022
    Applicant: NITTA Corporation
    Inventors: Kosuke MARUTANI, Takumi KATO, Takashi MEGUMI, Satoshi YAMAGUCHI, Koji YAMASHITA
  • Patent number: 11498171
    Abstract: An automatic tool exchange coupler and an automatic tool exchange device are provided that achieve further improvement in the user-friendliness of the automatic tool exchange device. The coupler includes a coupler body, a first direction switching valve and a second direction switching valve that are provided to a first side surface of the coupler body. The coupler body has: in a first side surface, an uncoupling input port being connected to a pipe for introducing a gas for uncoupling; and in the second side surface opposite to the first side surface, an uncoupling output port being configured to connected to the uncoupling port. The uncoupling input port is located at a position where a center of the uncoupling input port is radially offset with respect to the uncoupling output port by at least an amount corresponding to a length of a diameter of the uncoupling input port.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: November 15, 2022
    Assignee: NITTA CORPORATION
    Inventors: Yosuke Taniguchi, Kenji Tsurimoto
  • Patent number: 11491665
    Abstract: A tool exchange device includes a male member and a female member. The male member is attached to a side of a main body of an apparatus. The female member is attached to a side of a tool. The male member and the female member includes a plurality of coupling portions mechanically connected to each other, and a connector portion that connects a power supply path arranged in the main body and the tool to each other. The plurality of coupling portions and the connector portion are provided in each of joining surfaces of the male member and the female member. The plurality of coupling portions are arranged around the connector portion.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: November 8, 2022
    Assignee: NITTA CORPORATION
    Inventors: Hideki Nishio, Yasushi Kamada
  • Patent number: 11458640
    Abstract: A gripping device includes: a palm portion; a plurality of finger portions protruding from a periphery of the palm portion and configured to fall toward the palm portion by deforming the palm portion in a thickness direction; a connecting portion formed in a position surrounding an outer edge of the palm portion on a side opposite to a side formed with the finger portions, the connecting portion connected to a case; a high-strength portion provided between the palm portion and the connecting portion, the high-strength portion having a predetermined length from the outer edge of the palm portion in the thickness direction of the palm portion, and the high-strength portion being less likely to be deformed than the palm portion; the case connected to the connecting portion, the case coming into contact with a base end of the high-strength portion; and an actuator configured to deform the palm portion.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: October 4, 2022
    Assignee: NITTA CORPORATION
    Inventors: Itaru Hatano, Hirokazu Nitta