Patents by Inventor Masashi Kawai

Masashi Kawai 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: 20240091844
    Abstract: A flat wire distortion removal apparatus capable of contributing to preventing flat wires from being defectively processed is provided. A flat wire distortion removal apparatus according to an aspect of the present disclosure is a flat wire distortion removal apparatus, including a roller leveler configured to obtain parallelism between two side surfaces of the flat wire in a width direction by making the flat wire pass between a pair of rollers. The roller leveler includes a holding part configured to prevent the flat wire from rotating around an axis extending in a length direction of the flat wire.
    Type: Application
    Filed: August 22, 2023
    Publication date: March 21, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masashi KAWAI, Kuan Tang HUANG
  • Publication number: 20230412056
    Abstract: A coil holding apparatus for laying a concentrated wound cassette coil in which a wire is laminated in multi layers, including a plurality of supporting parts configured to support the concentrated wound cassette coil, in which the plurality of the supporting parts include a first supporting part having a first height in the vertical direction and a second supporting part having a second height different from the first height in the vertical direction. The concentrated wound cassette coil includes an upper surface and a lower surface, each of the plurality of the supporting parts includes a supporting surface that is brought into contact with the lower surface and that supports the concentrated wound cassette coil.
    Type: Application
    Filed: May 19, 2023
    Publication date: December 21, 2023
    Inventors: Akihiro TOKUYAMA, Hironari ADACHI, Shuai ZHANG, Masashi KAWAI, Masato ISOBE, Tomohiro SATO
  • Patent number: 11223259
    Abstract: To effectively cover a coil end with a resin layer. A method for manufacturing a stator includes a first resin layer forming step (ii) of forming a first thermoset resin layer by impregnating the tip end side of a coil end with first thermoset resin, the coil end protruding from the core of the stator, the first thermoset resin having liquidity; a second resin layer forming step (iii) of forming a second thermoset resin layer on the first thermoset resin layer by dropping second thermoset resin from the core side of the coil end toward the tip end side; and a curing step of curing the first thermoset resin and the second thermoset resin.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: January 11, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Masashi Kawai, Yasushi Nishikuma, Hiroaki Takeda
  • Patent number: 11196326
    Abstract: A manufacturing method for an electric motor stator includes an injecting step in which thermosetting resin is injected into a forming die, a dipping step in which a coil end portion is dipped into the thermosetting resin injected into the forming die, a heating step in which the thermosetting resin inside the forming die is heated so as to form a molded portion, and a mold release step in which the molded portion is released from the forming die when at least either shear force of the thermosetting resin or adhesive strength between the coil end portion and the thermosetting resin becomes greater than previously-determined mold release force.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: December 7, 2021
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Shimpei Fujiwara, Masashi Kawai, Hiroaki Takeda
  • Patent number: 10746690
    Abstract: A gas sensor element includes: an electrolyte body; a target gas chamber; a reference gas chamber; a first electrode coming into contact with the electrolyte in the target gas chamber; a second electrode coming into contact with the electrolyte body in the reference gas chamber so as to hold the electrolyte body between the first electrode and the second electrode; a diffusion layer arranged to come into contact with the electrolyte body and configured to deliver the target gas to the target gas chamber; and a shielding layer arranged to come into contact with the diffusion layer so as to arrange the diffusion layer between the electrolyte body and the shielding layer. At least one of the electrolyte body and the shielding layer is provided with a concave section depressed from an interface side with the diffusion layer.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: August 18, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masashi Kawai
  • Publication number: 20190157949
    Abstract: To effectively cover a coil end with a resin layer. A method for manufacturing a stator includes a first resin layer forming step (ii) of forming a first thermoset resin layer by impregnating the tip end side of a coil end with first thermoset resin, the coil end protruding from the core of the stator, the first thermoset resin having liquidity; a second resin layer forming step (iii) of forming a second thermoset resin layer on the first thermoset resin layer by dropping second thermoset resin from the core side of the coil end toward the tip end side; and a curing step of curing the first thermoset resin and the second thermoset resin.
    Type: Application
    Filed: November 15, 2018
    Publication date: May 23, 2019
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Masashi KAWAI, Yasushi NISHIKUMA, Hiroaki TAKEDA
  • Publication number: 20180162661
    Abstract: Provided is an image formation apparatus having a paper tray which is removably provided to an apparatus main body, in which sheets are loaded on a lifting plate, and from which the sheets on the lifting plate are fed by a paper feeding device, and the apparatus includes a holder that holds the lifting plate at a position higher than a lowest position when the paper tray is pulled out of the apparatus main body and the sheets are loaded on the lifting plate, wherein the holding by the holder is canceled to make the lifting plate go down to the lowest position before an operation of inserting the paper tray into the apparatus main body is completed.
    Type: Application
    Filed: November 30, 2017
    Publication date: June 14, 2018
    Applicant: Konica Minolta, Inc.
    Inventors: Katsumi KUROYANAGI, Kouki MURAMOTO, Katsumi KATOU, Masashi KAWAI, Kenichi YAMAMOTO
  • Patent number: 9829463
    Abstract: A production method for producing an oxygen sensor, includes spinning a precursor consisting of a salt of at least one metal chosen from Sc, Y, La, Ce, Pr, Nd, Sm, Gd, Dy, Ho, Yb, Sr, Ba, Mn, Co, Mg, and Ga, a solvent, and a macromolecular polymer to produce nanofibers of the precursor containing the salt of the metal. The method further includes calcining the nanofibers of the precursor at a temperature ranging from 550° C. to 650° C. for 2 to 4 hours, and making a solid electrolyte material composed of the nanofibers obtained from the calcining. The resulting solid electrolyte material constitutes a part of the oxygen sensor.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: November 28, 2017
    Assignees: Toyota Jidosha Kabushiki Kaisha, Tsinghua University
    Inventors: Wei Pan, Bin Li, Yanyi Liu, Masashi Kawai
  • Publication number: 20170328859
    Abstract: A gas sensor element includes: a nonporous electrolyte body; a target gas chamber; a reference gas chamber; a first electrode coming into contact with the nonporus electrolyte in the target gas chamber; a second electrode coming into contact with the nonporous electrolyte body in the reference gas chamber so as to hold the nonporous electrolyte body between the first electrode and the second electrode; a diffusion layer arranged to come into contact with the nonporous electrolyte body and configured to deliver the target gas to the target gas chamber; and a shielding layer arranged to come into contact with the diffusion layer so as to arrange the diffusion layer between the nonporous electrolyte body and the shielding layer. At least one of the nonporous electrolyte body and the shielding layer is provided with a concave section depressed from an interface side with the diffusion layer.
    Type: Application
    Filed: June 8, 2017
    Publication date: November 16, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masashi KAWAI
  • Patent number: 9709522
    Abstract: A gas sensor element includes: a solid electrolyte body; a target gas chamber; a reference gas chamber; a first electrode coming into contact with the solid electrolyte in the target gas chamber; a second electrode coming into contact with the solid electrolyte body in the reference gas chamber so as to hold the solid electrolyte body between the first electrode and the second electrode; a diffusion layer arranged to come into contact with the solid electrolyte body and configured to deliver the target gas to the target gas chamber; and a shielding layer arranged to come into contact with the diffusion layer so as to arrange the diffusion layer between the solid electrolyte body and the shielding layer. At least one of the solid electrolyte body and the shielding layer is provided with a concave section depressed from an interface side with the diffusion layer.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: July 18, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masashi Kawai
  • Publication number: 20170160225
    Abstract: A production method for producing an oxygen sensor, includes spinning a precursor consisting of a salt of at least one metal chosen from Sc, Y, La, Ce, Pr, Nd, Sm, Gd, Dy, Ho, Yb, Sr, Ba, Mn, Co, Mg, and Ga, a solvent, and a macromolecular polymer to produce nanofibers of the precursor containing the salt of the metal. The method further includes calcining the nanofibers of the precursor at a temperature ranging from 550° C. to 650° C. for 2 to 4 hours, and making a solid electrolyte material composed of the nanofibers obtained from the calcining. The resulting solid electrolyte material constitutes a part of the oxygen sensor.
    Type: Application
    Filed: December 20, 2016
    Publication date: June 8, 2017
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TSINGHUA UNIVERSITY
    Inventors: Wei PAN, Bin LI, Yanyi LIU, Masashi KAWAI
  • Patent number: 9564653
    Abstract: A production method for producing a fuel cell, includes spinning a precursor consisting of a salt of at least one metal chosen from Sc, Y, La, Ce, Pr, Nd, Sm, Gd, Dy, Ho, Yb, Sr, Ba, Mn, Co, Mg, and Ga, a solvent, and a macromolecular polymer to produce nanofibers of the precursor containing the salt of the metal. The method further includes calcining the nanofibers of the precursor at a temperature ranging from 550° C. to 650° C. for 2 to 4 hours, and making a solid electrolyte material composed of the nanofibers obtained from the calcining. The resulting solid electrolyte material constitutes a part of a fuel cell.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: February 7, 2017
    Assignees: Toyota Jidosha Kabushiki Kaisha, Tsinghua University
    Inventors: Wei Pan, Bin Li, Yanyi Liu, Masashi Kawai
  • Patent number: 9437999
    Abstract: The invention provides a method for manufacturing an oxygen sensor that is excellent in responsiveness and can be preferably used for diagnosis of catalyst deterioration. An oxygen sensor 1 equipped with an oxygen sensor element 11 comprising a solid electrolyte 21 and Pt coatings, as a pair of electrodes, on both surfaces of the solid electrolyte 21 is manufactured. The method comprises at least steps of: providing a Pt coating 23 on at least one of the solid electrolyte 21 surfaces exposed to the gas to be tested so as to form closed pores 23a inside the Pt coating 23; and heating either the Pt coating 23 or 24 exposed to gas to be tested in a gas atmosphere with higher oxygen concentration than that of the atmospheric gas.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: September 6, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masashi Kawai
  • Patent number: 9365884
    Abstract: An environmental evaluation installation including an evaluation chamber 1 isolated from outer space by isolation walls 2, minute substance supply means 3 configured to supply a microorganism into the evaluation chamber 1, a minute substance removing means 4 configured to supply removal particles for removing the microorganism into the evaluation chamber 1, and a minute substance collecting means 5 configured to collect the microorganism in the evaluation chamber 1, and which is characterized in that many air supply holes 21 are provided for almost the whole surfaces of the isolation walls 2 except at least the floor surface of the isolation walls 2 and that air is made to flow into the evaluation chamber 1 from the air supply holes 21.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: June 14, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazuo Nishikawa, Norihiro Matsuoka, Tetsuya Yoneda, Hisaharu Yagi, Masashi Kawai
  • Patent number: 9134268
    Abstract: A manufacturing method for an oxygen sensor that includes an oxygen sensor element includes: coating both surfaces of a solid electrolyte element of the oxygen sensor element with Pt films as a pair of electrodes; and heating at least one of the coated Pt films, coated on a side exposed to measured gas, in a gas atmosphere having a higher oxygen gas concentration than atmospheric gas to align a crystal orientation of the at least one of the Pt films with a (001) plane.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: September 15, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masashi Kawai
  • Publication number: 20150244015
    Abstract: A production method for producing a fuel cell, includes spinning a precursor consisting of a salt of at least one metal chosen from Sc, Y, La, Ce, Pr, Nd, Sm, Gd, Dy, Ho, Yb, Sr, Ba, Mn, Co, Mg, and Ga, a solvent, and a macromolecular polymer to produce nanofibers of the precursor containing the salt of the metal. The method further includes calcining the nanofibers of the precursor at a temperature ranging from 550° C. to 650° C. for 2 to 4 hours, and making a solid electrolyte material composed of the nanofibers obtained from the calcining. The resulting solid electrolyte material constitutes a part of a fuel cell.
    Type: Application
    Filed: March 6, 2015
    Publication date: August 27, 2015
    Applicants: Tsinghua University, Toyota Jidosha Kabushiki Kaisha
    Inventors: Wei Pan, Bin Li, Yanyi Liu, Masashi Kawai
  • Publication number: 20150204812
    Abstract: A gas sensor element includes: a solid electrolyte body; a target gas chamber; a reference gas chamber; a first electrode coming into contact with the solid electrolyte in the target gas chamber; a second electrode coming into contact with the solid electrolyte body in the reference gas chamber so as to hold the solid electrolyte body between the first electrode and the second electrode; a diffusion layer arranged to come into contact with the solid electrolyte body and configured to deliver the target gas to the target gas chamber; and a shielding layer arranged to come into contact with the diffusion layer so as to arrange the diffusion layer between the solid electrolyte body and the shielding layer. At least one of the solid electrolyte body and the shielding layer is provided with a concave section depressed from an interface side with the diffusion layer.
    Type: Application
    Filed: September 10, 2013
    Publication date: July 23, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masashi KAWAI
  • Patent number: 9025984
    Abstract: An image forming apparatus orientatable in either a first position or a second position, the second position being different from the first position in inclination with respect to a horizontal plane, comprising: a fixing device including a heating roller and a pressurizing member, pressing the pressurizing member against a surface of the heating roller to form a fixing nip, and thermally fixing a toner image on a recording sheet passing through the fixing nip; at least one temperature detector detecting surface temperature of the heating roller without contact with the surface; a heater heating the heating roller; a controller controlling the heater according to the surface temperature, thereby controlling the surface temperature; and a switcher switching a detection point of the temperature detector between a first and a second detection point according to whether the image forming apparatus is in the first or the second position.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: May 5, 2015
    Assignee: Konica Minolta, Inc.
    Inventors: Koji Soda, Junichi Tanimoto, Masashi Kawai
  • Patent number: 8913946
    Abstract: An image forming apparatus that is orientatable in either a first position or a second position, the second position being different from the first position in inclination with respect to a horizontal plane, comprising: a platform configured to be stacked with a plurality of recording sheets used for image formation; a pickup roller in contact with the recording sheets and configured to pick up the recording sheets one at a time; a pressing member applying pressure to the platform against the pick-up roller; and a pressure changer causing the pressing member to change an amount of the pressure according to whether the image forming apparatus is in the first position or in the second position.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: December 16, 2014
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Shigeru Sawano, Masashi Kawai, Naoki Nonoyama
  • Publication number: 20140137404
    Abstract: The invention provides a method for manufacturing an oxygen sensor that is excellent in responsiveness and can be preferably used for diagnosis of catalyst deterioration. An oxygen sensor 1 equipped with an oxygen sensor element 11 comprising a solid electrolyte 21 and Pt coatings, as a pair of electrodes, on both surfaces of the solid electrolyte 21 is manufactured. The method comprises at least steps of: providing a Pt coating 23 on at least one of the solid electrolyte 21 surfaces exposed to the gas to be tested so as to form closed pores 23a inside the Pt coating 23; and heating either the Pt coating 23 or 24 exposed to gas to be tested in a gas atmosphere with higher oxygen concentration than that of the atmospheric gas.
    Type: Application
    Filed: July 12, 2012
    Publication date: May 22, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masashi Kawai