Patents by Inventor Yukio Matsunaga
Yukio Matsunaga 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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Patent number: 11196324Abstract: A method of manufacturing a stacked core includes: forming a stack by stacking a plurality of core members, each of the plurality of core members including one or more blanked members blanked by a die from a metal plate along a predetermined shape; removing one core member of the plurality of core members from the stack; supplying adhesive to the one core member removed from the stack; and stacking the one core member next to an adjacent core member of the plurality of core members so that the adhesive is placed between the one core member and the adjacent core member.Type: GrantFiled: June 20, 2019Date of Patent: December 7, 2021Inventors: Satoshi Matsubayashi, Yukio Matsunaga, Yusuke Hasuo, Yusuke Eto, Hayato Nakayama
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Publication number: 20200108591Abstract: A method of manufacturing a stack includes a sequence of operations including separating a sheet from a temporary stack of sheets, rotating the sheet after it has been separated, and applying an adhesive to the sheet, while it is being rotated, by dispensing the adhesive to a surface of the sheet by at least one dispenser and restacking a plurality of the sheets, to which the adhesive was applied by repeating the sequence of operations, to form a manufactured stack of sheets.Type: ApplicationFiled: October 1, 2019Publication date: April 9, 2020Applicant: Mitsui High-tec, Inc.Inventors: Yukio MATSUNAGA, Yusuke HASUO, Yusuke ETO, Hayato NAKAYAMA, Takaya SAKAGUCHI
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Publication number: 20190305654Abstract: A method of manufacturing a stacked core includes: forming a stack by stacking a plurality of core members, each of the plurality of core members including one or more blanked members blanked by a die from a metal plate along a predetermined shape; removing one core member of the plurality of core members from the stack; supplying adhesive to the one core member removed from the stack; and stacking the one core member next to an adjacent core member of the plurality of core members so that the adhesive is placed between the one core member and the adjacent core member.Type: ApplicationFiled: June 20, 2019Publication date: October 3, 2019Applicant: Mitsui High-tec, Inc.Inventors: Satoshi MATSUBAYASHI, Yukio MATSUNAGA, Yusuke HASUO, Yusuke ETO, Hayato NAKAYAMA
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Patent number: 10128726Abstract: A method for manufacturing a laminate used for manufacturing a rotor is provided. The method includes: (a) stamping out a plurality of workpieces from a metal sheet wherein each of the workpieces has a temporarily-interlocking portion; and (b) obtaining a laminate including the workpieces integrated together by the temporarily-interlocking portion, wherein each of the workpieces further has a shaft hole, a magnet insertion hole, and a weight-reducing hole formed between the shaft hole and the magnet insertion hole, and the temporarily-interlocking portion is provided to the weight-reducing hole.Type: GrantFiled: December 23, 2015Date of Patent: November 13, 2018Assignee: MITSUI HIGH-TEC, INC.Inventors: Yukio Matsunaga, Hisatomo Ishimatsu, Yusuke Hasuo, Masahiro Izumi, Manabu Yazaki
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Patent number: 10033232Abstract: This disclosure relates to a method for manufacturing a laminate used for manufacturing a laminated core including a circumferential yoke part and a plurality of magnetic pole parts radially extending from the yoke part. This method includes: feeding a metal sheet drawn from a roll thereof to a progressive die; stamping out a plurality of workpieces from the metal sheet in the progressive die, wherein each of the workpiece comprises a temporarily-interlocking portion between adjacent magnetic pole portions; and stacking the workpieces to integrate these workpieces together by the temporarily-interlocking portion to obtain the laminate.Type: GrantFiled: December 7, 2015Date of Patent: July 24, 2018Assignees: Honda Motor Co., Ltd., Mitsui High-tec, Inc.Inventors: Yukio Matsunaga, Hisatomo Ishimatsu, Yusuke Hasuo, Masahiro Izumi, Manabu Yazaki
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Patent number: 9520761Abstract: A production method for the laminated iron core includes a first process that segment iron core pieces which respectively have circular arc angles obtained by dividing 360° as an angle of circumference into m are separated from a belt shaped iron core material and mounted on a mount base, the segment iron core pieces are carried to a laminating position of a rotary laminating mechanism by a pusher and the rotary laminating mechanism including the carried segment iron core piece therein is rotated by 360°/m and a second process that the first process is repeated to form an annularly connected iron core piece in which the segment iron core pieces are annularly arranged. The second process is repeated to form a caulked and laminated iron core having a prescribed thickness. During the second process, the segment iron core pieces are caulked and laminated in the rotary laminating mechanism.Type: GrantFiled: October 16, 2013Date of Patent: December 13, 2016Assignee: MITSUI HIGH-TEC, INC.Inventors: Satoshi Matsubayashi, Yukio Matsunaga, Iwao Myojin
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Publication number: 20160233748Abstract: The disclosure relates to a method for manufacturing a laminate used for manufacturing a rotor, the method includes: (a) stamping out a plurality of workpieces from a metal sheet wherein each of the workpieces has a temporarily-interlocking portion; and (b) obtaining a laminate including the workpieces integrated together by the temporarily-interlocking portion, wherein each of the workpieces further has a shaft hole, a magnet insertion hole, and a weight-reducing hole formed between the shaft hole and the magnet insertion hole, and the temporarily-interlocking portion is provided to the weight-reducing hole.Type: ApplicationFiled: December 23, 2015Publication date: August 11, 2016Inventors: Yukio Matsunaga, Hisatomo Ishimatsu, Yusuke Hasuo, Masahiro Izumi, Manabu Yazaki
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Publication number: 20160164350Abstract: This disclosure relates to a method for manufacturing a laminate used for manufacturing a laminated core including a circumferential yoke part and a plurality of magnetic pole parts radially extending from the yoke part. This method includes: feeding a metal sheet drawn from a roll thereof to a progressive die; stamping out a plurality of workpieces from the metal sheet in the progressive die, wherein each of the workpiece comprises a temporarily-interlocking portion between adjacent magnetic pole portions; and stacking the workpieces to integrate these workpieces together by the temporarily-interlocking portion to obtain the laminate.Type: ApplicationFiled: December 7, 2015Publication date: June 9, 2016Inventors: Yukio MATSUNAGA, Hisatomo ISHIMATSU, Yusuke HASUO, Masahiro IZUMI, Manabu YAZAKI
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Publication number: 20150270762Abstract: A production method for the laminated iron core includes a first process that segment iron core pieces which respectively have circular arc angles obtained by dividing 360° as an angle of circumference into m are separated from a belt shaped iron core material and mounted on a mount base, the segment iron core pieces are carried to a laminating position of a rotary laminating mechanism by a pusher and the rotary laminating mechanism including the carried segment iron core piece therein is rotated by 360°/m and a second process that the first process is repeated to form an annularly connected iron core piece in which the segment iron core pieces are annularly arranged. The second process is repeated to form a caulked and laminated iron core having a prescribed thickness. During the second process, the segment iron core pieces are caulked and laminated in the rotary laminating mechanism.Type: ApplicationFiled: October 16, 2013Publication date: September 24, 2015Applicant: MITSUI HIGH-TEC, INC.Inventors: Satoshi Matsubayashi, Yukio Matsunaga, Iwao Myojin
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Patent number: 4495124Abstract: A method and apparatus is provided for forming an abrasion resistant sheet from a sheet of orientable thermoplastic polymer material in one continuous process which can be effected by a single continuous production line apparatus. A method and apparatus is also provided for treating the surface of an oriented sheet with heated rolls for creating a fused surface layer on each side of the sheet. A method and apparatus is also provided for slitting a wider sheet into a plurality of strips at elevated temperatures with the strap under tension and with a staggered array of fixed blades. Further, a method and apparatus is provided for treating an oriented strip having a non-uniform thickness so as to conform the surfaces of the strip in a substantially uniformly flat and parallel configuration.Type: GrantFiled: October 24, 1983Date of Patent: January 22, 1985Assignee: Signode CorporationInventors: Donald L. Van Erden, Russell J. Gould, Yukio A. Matsunaga
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Patent number: 4428720Abstract: Apparatus is provied for forming an abrasion resistant sheet from a sheet of orientable thermoplastic polymer material in one continuous production line apparatus. Apparatus is also provided for treating the surface of an oriented sheet with heated rolls for creating a fused surface layer on each side of the sheet.Type: GrantFiled: January 28, 1982Date of Patent: January 31, 1984Assignee: Signode CorporationInventors: Donald L. Van Erden, Russell J. Gould, Yukio A. Matsunaga