Patents by Inventor Jin Oda

Jin Oda 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).

  • Patent number: 11258339
    Abstract: A manufacturing method of an iron core product includes: heating an iron core body attached to a jig together with the jig; removing the iron core body from the jig when the jig and the iron core body are heated to denote a first temperature; and separately cooling, after removing the iron core body from the jig, the iron core body and the jig such that the iron core body is at a second temperature lower than the first temperature and the jig is at a third temperature lower than the first temperature.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: February 22, 2022
    Assignee: MITSUI HIGH-TEC, INC.
    Inventors: Shigeru Nagasugi, Takashi Fukumoto, Jin Oda
  • Publication number: 20210194336
    Abstract: A method for manufacturing a laminated body includes: laminating an electromagnetic steel plate to form the laminated body; performing an annealing process on the laminated body; acquiring a before-annealing lamination thickness information on a thickness of the laminated body before performing the annealing process on the laminated body; and when the before-annealing lamination thickness information does not satisfy a before-annealing criterion which is predetermined, adjusting a lamination condition of the electromagnetic steel plate such that the before-annealing lamination thickness information satisfies the before-annealing criterion.
    Type: Application
    Filed: April 12, 2019
    Publication date: June 24, 2021
    Applicant: MITSUI HIGH-TEC, INC.
    Inventors: Shigeru NAGASUGI, Takashi FUKUMOTO, Jin ODA
  • Publication number: 20210143712
    Abstract: A manufacturing method of a laminated iron core by laminating a plurality of blanked members to form a laminate, the laminate including a pair of first and second end surfaces and the plurality of blanked members being interlocked by a caulk in a lamination direction of the laminate, includes: forming the laminate such that a protrusion of the caulk protrudes downward from the first end surface being in a downward state; placing the laminate on support such that the protrusion is not in contact with a support surface of the support; and processing the laminate in a state where the laminate is placed on the support.
    Type: Application
    Filed: March 5, 2019
    Publication date: May 13, 2021
    Applicant: MITSUI HIGH-TEC, INC.
    Inventors: Shigeru NAGASUGI, Takashi FUKUMOTO, Jin ODA
  • Publication number: 20210091645
    Abstract: A manufacturing method of an iron core product includes: heating an iron core body attached to a jig together with the jig; removing the iron core body from the jig when the jig and the iron core body are heated to denote a first temperature; and separately cooling, after removing the iron core body from the jig, the iron core body and the jig such that the iron core body is at a second temperature lower than the first temperature and the jig is at a third temperature lower than the first temperature.
    Type: Application
    Filed: March 5, 2019
    Publication date: March 25, 2021
    Applicant: MITSUI HIGH-TEC, INC.
    Inventors: Shigeru NAGASUGI, Takashi FUKUMOTO, Jin ODA
  • Publication number: 20210067014
    Abstract: A manufacturing method of the a laminated iron core includes: laminating a plurality of punched members to form a temporary laminate; pressing the temporary laminate with a first load to obtain a laminate; and processing the laminate while pressing the laminate with a second load that is equal to or less than the first load. The manufacturing method of the laminated iron core according to the present disclosure provides a manufacturing method in which subsequent processing can be favorably performed after the laminate is obtained.
    Type: Application
    Filed: March 5, 2019
    Publication date: March 4, 2021
    Applicant: MITSUI HIGH-TEC, INC.
    Inventors: Shigeru NAGASUGI, Takashi FUKUMOTO, Jin ODA
  • Patent number: 10726213
    Abstract: A method of manufacturing a metal product includes forming a first identification code onto a surface of a metal member with a laser beam, the first identification code being readable under a first reading condition, and heating the metal member on which the identification code is formed. The method further includes reading the first identification code with a reading device, and forming a second identification code onto the surface of the metal member subsequent to the heating with a laser beam based on the first identification code which is read with the reading device. The second identification code is readable under a second reading condition different from the first reading condition.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: July 28, 2020
    Inventors: Jin Oda, Junya Satake
  • Publication number: 20200177064
    Abstract: A method for manufacturing a laminated iron core product includes laminating a plurality of iron core members which are punched from a first metal plate to form a laminate, removing oil adhering to the laminate, removing oil adhering to an end surface plate which is punched from a second metal plate, and disposing the end surface plate on an end surface of the laminate and welding the end surface plate and the laminate.
    Type: Application
    Filed: November 5, 2019
    Publication date: June 4, 2020
    Applicant: MITSUI HIGH-TEC, INC.
    Inventors: Jin ODA, Akinori MIZUNO, Yuichi SHIRAISHI
  • Patent number: 10622873
    Abstract: In the case of a laminated rotor core 10, insertion of permanent magnets 14 and filling of resin 15 into each of magnet insertion holes 13 are performed in order to cancel out a problem of an imbalanced weight estimated from a deviation of lamination thickness in a circumferential direction of a laminated core body 12, and a manufacturing method includes a step of measuring a deviation of lamination thickness in which an imbalanced weight is estimated by measuring the deviation of lamination thickness in the circumferential direction of the laminated core body 12, and a step of balance adjustment in which the insertion of the permanent magnets 14 into each of the magnet insertion holes 13 and the filling of resin 15 into each of the magnet insertion holes 13 are performed in a manner that cancels out a problem of this imbalanced weight.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: April 14, 2020
    Assignees: MITSUI HIGH-TEC, INC., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akira Nagai, Kenji Katsuki, Go Kato, Jin Oda, Yuzo Ohta, Masashi Matsumoto, Tatsuhiko Mizutani
  • Publication number: 20200042848
    Abstract: A method of manufacturing a metal product comprise forming a base region on a surface of a metal member by repeatedly scanning along a predetermined first direction while irradiating the surface of the metal member with a base laser beam over a first set of rows. The method further comprises forming a marking by repeatedly scanning along a predetermined second direction while irradiating the surface of the metal member with a marking laser beam over a second set of rows. The second direction is different from the first direction. An identification code having a predetermined pattern comprises a combination of the base region and the marking.
    Type: Application
    Filed: October 10, 2019
    Publication date: February 6, 2020
    Applicant: Mitsui High-tec, Inc.
    Inventors: Jin ODA, Junya SATAKE, Tomoki HIRAYAMA
  • Patent number: 10170947
    Abstract: A laminated core 10 including a plurality of laminated iron core pieces, each of the iron core pieces being connected in a laminating direction by filling resin in a plurality of resin holes penetrating the laminated core 10 in the laminating direction, and a method for manufacturing the laminated core 10, by making a junction area of an iron core piece (A) 13 and resin larger than a junction area of an iron core piece (U) 14 and resin, the iron core piece (A) 13 being provided on an end in an axial direction, the iron core pieces (U) 14 being arranged at positions other than the end in the axial direction, or by providing locking portions at tip portions of resin, acquired joint strength of the iron core piece (A) 13.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: January 1, 2019
    Assignee: MITSUI HIGH-TEC, INC.
    Inventors: Takashi Fukumoto, Jin Oda, Shogo Tezuka, Mei Ogata
  • Publication number: 20180336374
    Abstract: A method of manufacturing a metal product includes forming a first identification code onto a surface of a metal member with a laser beam, the first identification code being readable under a first reading condition, and heating the metal member on which the identification code is formed. The method further includes reading the first identification code with a reading device, and forming a second identification code onto the surface of the metal member subsequent to the heating with a laser beam based on the first identification code which is read with the reading device. The second identification code is readable under a second reading condition different from the first reading condition.
    Type: Application
    Filed: May 18, 2018
    Publication date: November 22, 2018
    Applicant: Mitsui High-tec, Inc.
    Inventors: Jin ODA, Junya SATAKE
  • Patent number: 10056810
    Abstract: There is provided an apparatus for inspecting a laminated iron core in which a plurality of iron core pieces are laminated. The apparatus includes an insertion jig being movable in a lamination direction of the laminated iron core along an inspection side surface of the laminated iron core while having a gap between the insertion jig and the inspection side surface of the laminated iron core, and a detecting sensor provided on the insertion jig and detecting a contact of the moving insertion jig with a projection which occurs on the inspection side surface of the laminated iron core.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: August 21, 2018
    Assignee: MITSUI HIGH-TEC, INC.
    Inventors: Satoshi Matsubayashi, Jin Oda, Masumori Toyonaga
  • Patent number: 9564790
    Abstract: A method for manufacturing a laminated core, in which while a laminated core body 10 formed by caulking and with permanent magnets 20 inserted in a plurality of magnet insertion holes 17, 18 is held between a resin injection die 23 and a receiving die 22 opposed to each other, resin is injected into the magnet insertion holes 17, 18 from resin reservoir portions provided to the resin injection die 23 to fix the permanent magnets 20, the method comprising: at a time of resin injection, pressing a flat press surface 24 of the resin injection die 23 against caulking portions 13 protruding from a surface of the laminated core body 10 to apply pressure thereto, thereby allowing the surface of the laminated core body 10 whereon the caulking portions 13 are formed to be pressed against the flat press surface 24 so as to prevent resin leakage.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: February 7, 2017
    Assignee: MITSUI HIGH-TEC, INC.
    Inventors: Akira Nagai, Jin Oda
  • Publication number: 20160356672
    Abstract: There is provided an apparatus for inspecting a laminated iron core in which a plurality of iron core pieces are laminated. The apparatus includes an insertion jig being movable in a lamination direction of the laminated iron core along an inspection side surface of the laminated iron core while having a gap between the insertion jig and the inspection side surface of the laminated iron core, and a detecting sensor provided on the insertion jig and detecting a contact of the moving insertion jig with a projection which occurs on the inspection side surface of the laminated iron core.
    Type: Application
    Filed: June 1, 2016
    Publication date: December 8, 2016
    Applicant: MITSUI HIGH-TEC, INC.
    Inventors: Satoshi MATSUBAYASHI, Jin ODA, Masumori TOYONAGA
  • Patent number: 9318923
    Abstract: A laminated iron core and a method for manufacturing the same are provided to secure the lamination strength of the respective iron core pieces thereof, and to provide good magnetic efficiency and to reduce a loss. In a laminated iron core including a first caulking section formed in an area thereof having larger magnetic flux density than other area and a second caulking section formed in the other area, the engagement area A of the recessed sub-sections and projecting sub-sections of the first caulking sections of divided iron core pieces adjoining each other in the laminating direction is set smaller than the engagement area B of the recessed sub-sections and projecting sub-sections of the second caulking sections adjoining each other in the laminating direction.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: April 19, 2016
    Assignee: MITSUI HIGH-TEC, INC.
    Inventors: Akira Nagai, Jin Oda
  • Publication number: 20160013709
    Abstract: In the case of a laminated rotor core 10, insertion of permanent magnets 14 and filling of resin 15 into each of magnet insertion holes 13 are performed in order to cancel out a problem of an imbalanced weight estimated from a deviation of lamination thickness in a circumferential direction of a laminated core body 12, and a manufacturing method includes a step of measuring a deviation of lamination thickness in which an imbalanced weight is estimated by measuring the deviation of lamination thickness in the circumferential direction of the laminated core body 12, and a step of balance adjustment in which the insertion of the permanent magnets 14 into each of the magnet insertion holes 13 and the filling of resin 15 into each of the magnet insertion holes 13 are performed in a manner that cancels out a problem of this imbalanced weight.
    Type: Application
    Filed: July 8, 2015
    Publication date: January 14, 2016
    Applicants: Mitsui High-tec, Inc., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akira Nagai, Kenji Katsuki, Go Kato, Jin Oda, Yuzo Ohta, Masashi Matsumoto, Tatsuhiko Mizutani
  • Publication number: 20150097462
    Abstract: A laminated core 10 including a plurality of laminated iron core pieces, each of the iron core pieces being connected in a laminating direction by filling resin in a plurality of resin holes penetrating the laminated core 10 in the laminating direction, and a method for manufacturing the laminated core 10, by making a junction area of an iron core piece (A) 13 and resin larger than a junction area of an iron core piece (U) 14 and resin, the iron core piece (A) 13 being provided on an end in an axial direction, the iron core pieces (U) 14 being arranged at positions other than the end in the axial direction, or by providing locking portions at tip portions of resin, acquired joint strength of the iron core piece (A) 13.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 9, 2015
    Applicant: Mitsui High-tec, Inc
    Inventors: Takashi Fukumoto, Jin Oda, Shogo Tezuka, Mei Ogata
  • Patent number: 8916254
    Abstract: A method for manufacturing a laminated core is provided that makes positions of boundary parts of laminated blocks and improves an efficiency of a welding operation of the blocks. The above-described object is achieved by the method of manufacturing the laminated core 10 including a process that forms a plurality of blocks 12 having a plurality of welding parts 13 to 15 of different forms or colors at intervals of prescribed angles in the circumferential direction, a process that laminates the plurality of blocks 12 under a state that the blocks are rotated at intervals of the prescribed angles and a process that welds the welding parts 13 to 15 having the different forms or colors of the laminated blocks 12 to form integrally the plurality of blocks 12.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: December 23, 2014
    Assignees: Mitsui High-Tec, Inc, Toyota Jidosha Kabushiki Kaisha
    Inventors: Akira Nagai, Jin Oda, Tatsuhiko Mizutani, Yosuke Kurono
  • Publication number: 20140124980
    Abstract: A method for manufacturing a laminated core, in which while a laminated core body 10 formed by caulking and with permanent magnets 20 inserted in a plurality of magnet insertion holes 17, 18 is held between a resin injection die 23 and a receiving die 22 opposed to each other, resin is injected into the magnet insertion holes 17, 18 from resin reservoir portions provided to the resin injection die 23 to fix the permanent magnets 20, the method comprising: at a time of resin injection, pressing a flat press surface 24 of the resin injection die 23 against caulking portions 13 protruding from a surface of the laminated core body 10 to apply pressure thereto, thereby allowing the surface of the laminated core body 10 whereon the caulking portions 13 are formed to be pressed against the flat press surface 24 so as to prevent resin leakage.
    Type: Application
    Filed: November 5, 2013
    Publication date: May 8, 2014
    Applicant: MITSUI HIGH-TEC, INC.
    Inventors: Akira Nagai, Jin Oda
  • Publication number: 20130249346
    Abstract: A laminated iron core and a method for manufacturing the same are provided to secure the lamination strength of the respective iron core pieces thereof, and to provide good magnetic efficiency and to reduce a loss. In a laminated iron core including a first caulking section formed in an area thereof having larger magnetic flux density than other area and a second caulking section formed in the other area, the engagement area A of the recessed sub-sections and projecting sub-sections of the first caulking sections of divided iron core pieces adjoining each other in the laminating direction is set smaller than the engagement area B of the recessed sub-sections and projecting sub-sections of the second caulking sections adjoining each other in the laminating direction.
    Type: Application
    Filed: January 23, 2012
    Publication date: September 26, 2013
    Applicant: MITSUI HIGH-TEC , INC.
    Inventors: Akira Nagai, Jin Oda