Patents by Inventor Masaaki Yoshitome

Masaaki Yoshitome 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: 10361412
    Abstract: A method for forming a thin, board-like base material has a tensile transfer step and a forming step. In the tensile transfer step, the long, thin, board-like base material is transferred by pulling the thin, board-like base material in the transfer direction while holding both ends of the thin, board-like base material along the transfer direction and pulling the ends outward in the direction intersecting the transfer direction. In the forming step, predetermined forming operations are performed with respect to the thin, board-like base material.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: July 23, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Naoto Taguchi, Masaaki Yoshitome, Manabu Higuchi
  • Patent number: 10263378
    Abstract: A method is provided for manufacturing a terminal member that is electrical conductive with a conductive member. The terminal member is formed by working a workpiece having a plate shape with a first surface and a second surface extending from one end toward the other end, by cutting out a recessed portion at the one end from the first surface to the second surface. In this method, the recessed portion is supported by being abutted against a supporting member, and a portion spaced from the recessed portion toward the other end side is fixed, and both side portions along the one end from the recessed portion are bent while being pressed from the first surface toward the second surface side, thereby forming, as a pair of conductive surfaces for conduction with the conductive member, second surface portions facing each other with the supporting member interposed therebetween.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: April 16, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masaaki Yoshitome, Naoto Taguchi, Kazuto Ueno
  • Publication number: 20180287325
    Abstract: A method is provided for manufacturing a terminal member that is electrical conductive with a conductive member. The terminal member is formed by working a workpiece having a plate shape with a first surface and a second surface extending from one end toward the other end, by cutting out a recessed portion at the one end from the first surface to the second surface. In this method, the recessed portion is supported by being abutted against a supporting member, and a portion spaced from the recessed portion toward the other end side is fixed, and both side portions along the one end from the recessed portion are bent while being pressed from the first surface toward the second surface side, thereby forming, as a pair of conductive surfaces for conduction with the conductive member, second surface portions facing each other with the supporting member interposed therebetween.
    Type: Application
    Filed: August 27, 2015
    Publication date: October 4, 2018
    Inventors: Masaaki YOSHITOME, Naoto TAGUCHI, Kazuto UENO
  • Patent number: 9662700
    Abstract: A thin plate-shaped substrate molding device for pressing molding a pre-molded article to a prescribed irregular shape. The thin plate-shaped substrate molding device comprises a first die, a second die, a plurality of tensioning portions and a controller. The first and second dies are movably disposed to be moved towards and away from each other. The second die has protruding portions that protrude towards the first die for forming stretched portions and forming bent portions. The controller controls the first die, the second die and the tensioning portions. The bent portions are tensioned and stretched by the tensioning portions, while the stretched portions of the pre-molded article are still pressed by the first die and the protruding portions of the second die, to impart the shape of the protruding portions to the pre-molded article along the side edges of the protruding portions.
    Type: Grant
    Filed: May 26, 2014
    Date of Patent: May 30, 2017
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Naoto Taguchi, Masaaki Yoshitome, Manabu Higuchi
  • Publication number: 20160129491
    Abstract: A thin plate-shaped substrate molding device for pressing molding a pre-molded article to a prescribed irregular shape. The thin plate-shaped substrate molding device comprises a first die, a second die, a plurality of tensioning portions and a controller. The first and second dies are movably disposed to be moved towards and away from each other. The second die has protruding portions that protrude towards the first die for forming stretched portions and forming bent portions. The controller controls the first die, the second die and the tensioning portions. The bent portions are tensioned and stretched by the tensioning portions, while the stretched portions of the pre-molded article are still pressed by the first die and the protruding portions of the second die, to impart the shape of the protruding portions to the pre-molded article along the side edges of the protruding portions.
    Type: Application
    Filed: May 26, 2014
    Publication date: May 12, 2016
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Naoto TAGUCHI, Masaaki YOSHITOME, Manabu HIGUCHI
  • Publication number: 20150380701
    Abstract: A method for forming a thin, board-like base material has a tensile transfer step and a forming step. In the tensile transfer step, the long, thin, board-like base material is transferred by pulling the thin, board-like base material in the transfer direction while holding both ends of the thin, board-like base material along the transfer direction and pulling the ends outward in the direction intersecting the transfer direction. In the forming step, predetermined forming operations are performed with respect to the thin, board-like base material.
    Type: Application
    Filed: December 26, 2013
    Publication date: December 31, 2015
    Inventors: Naoto TAGUCHI, Masaaki YOSHITOME, Manabu HIGUCHI
  • Patent number: 9101973
    Abstract: A laminated work production apparatus for producing a laminated work by punching a plate-like metal material into a plate-like work of a predetermined shape and stacking a plurality of the plate-like works includes a mold for punching the metal material, a stacking jig moving mechanism for moving a stacking jig to a stacking position where the plate-like works are stacked, a retention mechanism for retaining the punched plate-like works at a retaining position different from the stacking position until a preset number is reached, and a knockout mechanism for knocking out a plurality of plate-like works in a punching direction and stacking the plate-like works on the stacking jig arranged at the stacking position when the preset number of plate-like works are retained in the retention mechanism.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: August 11, 2015
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Kazuto Ueno, Kenji Kanamori, Masaaki Yoshitome, Tsukasa Morita, Manabu Higuchi, Takeshi Torimoto
  • Publication number: 20130167696
    Abstract: A laminated work production apparatus for producing a laminated work by punching a plate-like metal material into a plate-like work of a predetermined shape and stacking a plurality of the plate-like works includes a mold for punching the metal material, a stacking jig moving mechanism for moving a stacking jig to a stacking position where the plate-like works are stacked, a retention mechanism for retaining the punched plate-like works at a retaining position different from the stacking position until a preset number is reached, and a knockout mechanism for knocking out a plurality of plate-like works in a punching direction and stacking the plate-like works on the stacking jig arranged at the stacking position when the preset number of plate-like works are retained in the retention mechanism.
    Type: Application
    Filed: December 7, 2011
    Publication date: July 4, 2013
    Inventors: Kazuto Ueno, Kenji Kanamori, Masaaki Yoshitome, Tsukasa Morita, Manabu Higuchi, Takeshi Torimoto
  • Patent number: 7971466
    Abstract: A press-formed member includes a first wall with a first thickness, a second wall with a second thickness, and a first corner portion. The first corner portion is disposed between the first and second walls, with the first corner portion having an increased thickness formed by pressure-forming such that the increased thickness of the first corner portion is larger than the first and second thicknesses of the first and second walls adjacent to the first corner portion. In a manufacturing method for the press-formed member, a preliminary body structure to be deformed is provided, and the thickness of the first corner portion of the preliminary body structure is increased by applying pressure to the preliminary body structure.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: July 5, 2011
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masaaki Yoshitome, Hidenobu Matsuyama, Shinichi Matsuda
  • Patent number: 7861489
    Abstract: A preform having edges overlapped and jointed, two outer members for forming outer surfaces of a hydroformed product, and reinforcement members for forming reinforcement ribs that divide a hollow cross section of the hydroformed product, including a joint formed by, when more than three sheet materials for forming the outer members and the reinforcement members are overlapped together, welding a first sheet material on a surface of the overlapped sheet materials to a second sheet material positioned inside the first sheet material, and a space disposed and aligned with a joint plane between the second sheet material and a third sheet material located inside the second sheet material during the welding process.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: January 4, 2011
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kazuto Ueno, Hajime Minagawa, Shinji Ooe, Kazuhiro Mitamura, Satoru Majima, Takashi Haraoka, Masaaki Yoshitome, Hideto Kanafusa, Tomoaki Watari, Tomoyuki Hirota
  • Patent number: 7788856
    Abstract: A preform having edges overlapped and jointed, two outer members for forming outer surfaces of a hydroformed product, and reinforcement members for forming reinforcement ribs that divide a hollow cross section of the hydroformed product, including a joint formed by, when more than three sheet materials for forming the outer members and the reinforcement members are overlapped together, welding a first sheet material on a surface of the overlapped sheet materials to a second sheet material positioned inside the first sheet material, and a space disposed and aligned with a joint plane between the second sheet material and a third sheet material located inside the second sheet material during the welding process.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: September 7, 2010
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kazuto Ueno, Hajime Minagawa, Shinji Ooe, Kazuhiro Mitamura, Satoru Majima, Takashi Haraoka, Masaaki Yoshitome, Hideto Kanafusa, Tomoaki Watari, Tomoyuki Hirota
  • Publication number: 20100115773
    Abstract: A preform having edges overlapped and jointed, two outer members for forming outer surfaces of a hydroformed product, and reinforcement members for forming reinforcement ribs that divide a hollow cross section of the hydroformed product, including a joint formed by, when more than three sheet materials for forming the outer members and the reinforcement members are overlapped together, welding a first sheet material on a surface of the overlapped sheet materials to a second sheet material positioned inside the first sheet material, and a space disposed and aligned with a joint plane between the second sheet material and a third sheet material located inside the second sheet material during the welding process.
    Type: Application
    Filed: May 12, 2009
    Publication date: May 13, 2010
    Inventors: Kazuto UENO, Hajime MINAGAWA, Shinji OOE, Kazuhiro MITAMURA, Satoru MAJIMA, Takashi HARAOKA, Masaaki YOSHITOME, Hideto KANAFUSA, Tomoaki WATARI, Tomoyuki HIROTA
  • Patent number: 7614271
    Abstract: A preform with edges overlapped and jointed each other and first and second outer members for forming outer surfaces of a hydroformed product, and reinforcement members that are jointed to the first and second outer members to form reinforcement ribs that divide a hollow cross section of the outer surfaces, the reinforcement members having dimensions capable of suppressing elongation in a tensile direction due to a tensile force that develops during hydroforming.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: November 10, 2009
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kazuto Ueno, Kazuhiro Mitamura, Satoru Majima, Takashi Haraoka, Masaaki Yoshitome, Hideto Kanafusa
  • Publication number: 20080268276
    Abstract: A preform with edges overlapped and jointed each other and first and second outer members for forming outer surfaces of a hydroformed product, and reinforcement members that are jointed to the first and second outer members to form reinforcement ribs that divide a hollow cross section of the outer surfaces, the reinforcement members having dimensions capable of suppressing elongation in a tensile direction due to a tensile force that develops during hydroforming.
    Type: Application
    Filed: June 26, 2008
    Publication date: October 30, 2008
    Inventors: Kazuto Ueno, Kazuhiro Mitamura, Satoru Majima, Takashi Haraoka, Masaaki Yoshitome, Hideto Kanafusa
  • Patent number: 7406849
    Abstract: A preform with edges overlapped and jointed each other and first and second outer members for forming outer surfaces of a hydroformed product, and reinforcement members that are jointed to the first and second outer members to form reinforcement ribs that divide a hollow cross section of the outer surfaces, the reinforcement members having dimensions capable of suppressing elongation in a tensile direction due to a tensile force that develops during hydroforming.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: August 5, 2008
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kazuto Ueno, Kazuhiro Mitamura, Satoru Majima, Takashi Haraoka, Masaaki Yoshitome, Hideto Kanafusa
  • Publication number: 20070125149
    Abstract: A press-formed member includes a first wall with a first thickness, a second wall with a second thickness, and a first corner portion. The first corner portion is disposed between the first and second walls, with the first corner portion having an increased thickness formed by pressure-forming such that the increased thickness of the first corner portion is larger than the first and second thicknesses of the first and second walls adjacent to the first corner portion. In a manufacturing method for the press-formed member, a preliminary body structure to be deformed is provided, and the thickness of the first corner portion of the preliminary body structure is increased by applying pressure to the preliminary body structure.
    Type: Application
    Filed: November 30, 2006
    Publication date: June 7, 2007
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Masaaki Yoshitome, Hidenobu Matsuyama, Shinichi Matsuda
  • Patent number: 7204005
    Abstract: A manufacturing method of an endless metal belt having metal rings built up and differing in circumference, includes the following steps of: a first circumference correction step of expanding each of the metal rings; and a second circumference correction step of expanding each of the metal rings after conducting a solution heat treatment to the expanded metal ring. In the manufacturing method, by executing the first circumference correction step and the second circumference correction step before and after the solution heat treatment, respectively, an expansion quantity for setting a circumference of each of the metal rings to become a predetermined length is attained.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: April 17, 2007
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Ryuji Fukada, Mitsutaka Akutsu, Masayuki Suzuki, Masaaki Yoshitome
  • Publication number: 20060076471
    Abstract: A preform having edges overlapped and jointed, two outer members for forming outer surfaces of a hydroformed product, and reinforcement members for forming reinforcement ribs that divide a hollow cross section of the hydroformed product, including a joint formed by, when more than three sheet materials for forming the outer members and the reinforcement members are overlapped together, welding a first sheet material on a surface of the overlapped sheet materials to a second sheet material positioned inside the first sheet material, and a space disposed and aligned with a joint plane between the second sheet material and a third sheet material located inside the second sheet material during the welding process.
    Type: Application
    Filed: July 28, 2005
    Publication date: April 13, 2006
    Inventors: Kazuto Ueno, Hajime Minagawa, Shinji Ooe, Kazuhiro Mitamura, Satoru Majima, Takashi Haraoka, Masaaki Yoshitome, Hideto Kanafusa, Tomoaki Watari, Tomoyuki Hirota
  • Publication number: 20060066133
    Abstract: A preform with edges overlapped and jointed each other and first and second outer members for forming outer surfaces of a hydroformed product, and reinforcement members that are jointed to the first and second outer members to form reinforcement ribs that divide a hollow cross section of the outer surfaces, the reinforcement members having dimensions capable of suppressing elongation in a tensile direction due to a tensile force that develops during hydroforming.
    Type: Application
    Filed: September 28, 2005
    Publication date: March 30, 2006
    Inventors: Kazuto Ueno, Kazuhiro Mitamura, Satoru Majima, Takashi Haraoka, Masaaki Yoshitome, Hideto Kanafusa
  • Publication number: 20040103708
    Abstract: A manufacturing method of an endless metal belt having metal rings built up and differing in circumference, includes the following steps of: a first circumference correction step of expanding each of the metal rings; and a second circumference correction step of expanding each of the metal rings after conducting a solution heat treatment to the expanded metal ring. In the manufacturing method, by executing the first circumference correction step and the second circumference correction step before and after the solution heat treatment, respectively, an expansion quantity for setting a circumference of each of the metal rings to become a predetermined length is attained.
    Type: Application
    Filed: August 20, 2003
    Publication date: June 3, 2004
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Ryuji Fukada, Mitsutaka Akutsu, Masayuki Suzuki, Masaaki Yoshitome