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).
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Publication number: 20240091844Abstract: 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: ApplicationFiled: August 22, 2023Publication date: March 21, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masashi KAWAI, Kuan Tang HUANG
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Publication number: 20230412056Abstract: 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: ApplicationFiled: May 19, 2023Publication date: December 21, 2023Inventors: Akihiro TOKUYAMA, Hironari ADACHI, Shuai ZHANG, Masashi KAWAI, Masato ISOBE, Tomohiro SATO
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Patent number: 11223259Abstract: 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: GrantFiled: November 15, 2018Date of Patent: January 11, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATIONInventors: Masashi Kawai, Yasushi Nishikuma, Hiroaki Takeda
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Patent number: 11196326Abstract: 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: GrantFiled: November 5, 2018Date of Patent: December 7, 2021Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATIONInventors: Shimpei Fujiwara, Masashi Kawai, Hiroaki Takeda
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Patent number: 10746690Abstract: 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: GrantFiled: June 8, 2017Date of Patent: August 18, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventor: Masashi Kawai
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Publication number: 20190157949Abstract: 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: ApplicationFiled: November 15, 2018Publication date: May 23, 2019Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATIONInventors: Masashi KAWAI, Yasushi NISHIKUMA, Hiroaki TAKEDA
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Publication number: 20180162661Abstract: 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: ApplicationFiled: November 30, 2017Publication date: June 14, 2018Applicant: Konica Minolta, Inc.Inventors: Katsumi KUROYANAGI, Kouki MURAMOTO, Katsumi KATOU, Masashi KAWAI, Kenichi YAMAMOTO
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Patent number: 9829463Abstract: 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: GrantFiled: December 20, 2016Date of Patent: November 28, 2017Assignees: Toyota Jidosha Kabushiki Kaisha, Tsinghua UniversityInventors: Wei Pan, Bin Li, Yanyi Liu, Masashi Kawai
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Publication number: 20170328859Abstract: 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: ApplicationFiled: June 8, 2017Publication date: November 16, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masashi KAWAI
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Patent number: 9709522Abstract: 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: GrantFiled: September 10, 2013Date of Patent: July 18, 2017Assignee: Toyota Jidosha Kabushiki KaishaInventor: Masashi Kawai
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Publication number: 20170160225Abstract: 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: ApplicationFiled: December 20, 2016Publication date: June 8, 2017Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TSINGHUA UNIVERSITYInventors: Wei PAN, Bin LI, Yanyi LIU, Masashi KAWAI
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Patent number: 9564653Abstract: 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: GrantFiled: March 6, 2015Date of Patent: February 7, 2017Assignees: Toyota Jidosha Kabushiki Kaisha, Tsinghua UniversityInventors: Wei Pan, Bin Li, Yanyi Liu, Masashi Kawai
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Patent number: 9437999Abstract: 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: GrantFiled: July 12, 2012Date of Patent: September 6, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masashi Kawai
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Patent number: 9365884Abstract: 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: GrantFiled: June 27, 2007Date of Patent: June 14, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Kazuo Nishikawa, Norihiro Matsuoka, Tetsuya Yoneda, Hisaharu Yagi, Masashi Kawai
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Patent number: 9134268Abstract: 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: GrantFiled: June 13, 2012Date of Patent: September 15, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masashi Kawai
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Publication number: 20150244015Abstract: 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: ApplicationFiled: March 6, 2015Publication date: August 27, 2015Applicants: Tsinghua University, Toyota Jidosha Kabushiki KaishaInventors: Wei Pan, Bin Li, Yanyi Liu, Masashi Kawai
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Publication number: 20150204812Abstract: 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: ApplicationFiled: September 10, 2013Publication date: July 23, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masashi KAWAI
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Patent number: 9025984Abstract: 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: GrantFiled: May 1, 2013Date of Patent: May 5, 2015Assignee: Konica Minolta, Inc.Inventors: Koji Soda, Junichi Tanimoto, Masashi Kawai
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Patent number: 8913946Abstract: 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: GrantFiled: March 18, 2013Date of Patent: December 16, 2014Assignee: Konica Minolta Business Technologies, Inc.Inventors: Shigeru Sawano, Masashi Kawai, Naoki Nonoyama
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Publication number: 20140137404Abstract: 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: ApplicationFiled: July 12, 2012Publication date: May 22, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masashi Kawai