Patents by Inventor Tomotsugu Takahashi

Tomotsugu Takahashi 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: 11642714
    Abstract: A progressive pressing method includes: a first bead molding step of molding a first bead having a length of a second predetermined distance extending in a longitudinal direction of the elongated metal plate, in a side part of a region which becomes a first product part of the elongated metal plate; a first conveying step of conveying the elongated metal plate in the longitudinal direction by a feed amount which is a first predetermined distance; and a second bead molding step of molding a second bead having a length of the second predetermined distance extending in the longitudinal direction of the elongated metal plate, so as to link with the first bead molded in the first bead molding step, in a side part of a region which becomes a second product part of the elongated metal plate, in which the second predetermined distance is longer than the first predetermined distance.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: May 9, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuichi Hori, Tomotsugu Takahashi, Kei Matsumoto, Seitaro Nakamura
  • Patent number: 11583906
    Abstract: In a manufacturing method for fuel cell separators having a seal part of convex shape that is pushed when superimposed with another separator, the method includes: a first pressing step of imparting work hardening to an entire region to become a convex shape configuring the seal part; and a second pressing step of press molding the region work hardened in the first pressing step so as to become a convex shape.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: February 21, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuichi Hori, Tomotsugu Takahashi, Kei Matsumoto, Seitaro Nakamura
  • Patent number: 11515560
    Abstract: In a progressive pressing device, a first state of a lifting part is a state not sandwiching an elongated metal plate between a lifting plate and an upper plate in a state in which a positioning pin and a positioning hole are not engaged, a second state is a state not sandwiching an elongated metal plate between a lifting plate and an upper plate in a state in which a positioning pin and a positioning hole are engaged, and a third state is a state sandwiching an elongated metal plate between a lifting plate and an upper plate in a state in which a positioning pin and a positioning hole are engaged.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: November 29, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuichi Hori, Tomotsugu Takahashi, Kei Matsumoto, Seitaro Nakamura
  • Patent number: 11444358
    Abstract: A manufacturing method for fuel cell separators by way of a progressive pressing method which molds a plurality of separator shaped parts in an elongated metal plate, the method having: a pressing step of forming a separator shaped part in an elongated metal plate by way of pressing; a trimming step of cutting loose the separator shaped part from the elongated metal plate by punching an outer peripheral part of the separator shaped part formed in the elongated metal plate in the same pressing direction as the pressing step; a lifting step of lifting up the elongated metal plate from which the separator shaped part was cut loose; and a separator shaped part conveying step of conveying the separator shaped part which was cut loose to a downstream side in the conveying direction, in the midst of the elongated metal plate being lifted up in the lifting step.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: September 13, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuichi Hori, Tomotsugu Takahashi, Kei Matsumoto, Seitaro Nakamura
  • Publication number: 20210299719
    Abstract: In a manufacturing method for fuel cell separators having a seal part of convex shape that is pushed when superimposed with another separator, the method includes: a first pressing step of imparting work hardening to an entire region to become a convex shape configuring the seal part; and a second pressing step of press molding the region work hardened in the first pressing step so as to become a convex shape.
    Type: Application
    Filed: March 26, 2021
    Publication date: September 30, 2021
    Inventors: Yuichi HORI, Tomotsugu TAKAHASHI, Kei MATSUMOTO, Seitaro NAKAMURA
  • Publication number: 20210305657
    Abstract: A manufacturing method for fuel cell separators by way of a progressive pressing method which molds a plurality of separator shaped parts in an elongated metal plate, the method having: a pressing step of forming a separator shaped part in an elongated metal plate by way of pressing; a trimming step of cutting loose the separator shaped part from the elongated metal plate by punching an outer peripheral part of the separator shaped part formed in the elongated metal plate in the same pressing direction as the pressing step; a lifting step of lifting up the elongated metal plate from which the separator shaped part was cut loose; and a separator shaped part conveying step of conveying the separator shaped part which was cut loose to a downstream side in the conveying direction, in the midst of the elongated metal plate being lifted up in the lifting step.
    Type: Application
    Filed: March 26, 2021
    Publication date: September 30, 2021
    Inventors: Yuichi HORI, Tomotsugu TAKAHASHI, Kei MATSUMOTO, Seitaro NAKAMURA
  • Publication number: 20210299726
    Abstract: A progressive pressing method includes: a first bead molding step of molding a first bead having a length of a second predetermined distance extending in a longitudinal direction of the elongated metal plate, in a side part of a region which becomes a first product part of the elongated metal plate; a first conveying step of conveying the elongated metal plate in the longitudinal direction by a feed amount which is a first predetermined distance; and a second bead molding step of molding a second bead having a length of the second predetermined distance extending in the longitudinal direction of the elongated metal plate, so as to link with the first bead molded in the first bead molding step, in a side part of a region which becomes a second product part of the elongated metal plate, in which the second predetermined distance is longer than the first predetermined distance.
    Type: Application
    Filed: March 26, 2021
    Publication date: September 30, 2021
    Inventors: Yuichi HORI, Tomotsugu TAKAHASHI, Kei MATSUMOTO, Seitaro NAKAMURA
  • Publication number: 20210305614
    Abstract: In a progressive pressing device, a first state of a lifting part is a state not sandwiching an elongated metal plate between a lifting plate and an upper plate in a state in which a positioning pin and a positioning hole are not engaged, a second state is a state not sandwiching an elongated metal plate between a lifting plate and an upper plate in a state in which a positioning pin and a positioning hole are engaged, and a third state is a state sandwiching an elongated metal plate between a lifting plate and an upper plate in a state in which a positioning pin and a positioning hole are engaged.
    Type: Application
    Filed: March 24, 2021
    Publication date: September 30, 2021
    Inventors: Yuichi HORI, Tomotsugu TAKAHASHI, Kei MATSUMOTO, Seitaro NAKAMURA
  • Patent number: 11018482
    Abstract: The present invention relates to a method of coating-peeling and a coating-peeling apparatus. The method of coating-peeling includes a gripping step and a peeling step, and peels by a pair of peeling blades peeling target portions of an insulating coating covering peeling target side surfaces of a rectangular conductor wire. In the gripping step, abutting sections of a pair of gripping members abut on gripping target portions of the insulating coating, whereby the rectangular conductor wire is gripped between the abutting sections. In the peeling step, in a state where the rectangular conductor wire has been gripped by the gripping members, the peeling blades are moved relatively following a surface direction of the peeling target side surfaces while opposing each other sandwiching the peeling target side surfaces, whereby the peeling target portions are peeled.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: May 25, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Keiichiro Oka, Yosuke Komatsu, Kenji Masai, Tomotsugu Takahashi, Junya Shigeno
  • Patent number: 10530211
    Abstract: An insulator of a coil winding component constituting part of a rotary electric machine is resin molded integrally with a divided iron core. A first accommodating groove in which a coil terminal wire can be arranged is formed on an outer end surface of a wiring member of the insulator. A plurality of recesses are formed in a circumferential direction of a stator core on a groove bottom surface of the first accommodating groove. Further, a rib, which supports the coil terminal wire that is arranged in the first accommodating groove, is disposed between the mutually adjacent recesses.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: January 7, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kenji Kitamura, Tomotsugu Takahashi
  • Publication number: 20190103734
    Abstract: The present invention relates to a method of coating-peeling and a coating-peeling apparatus. The method of coating-peeling includes a gripping step and a peeling step, and peels by a pair of peeling blades peeling target portions of an insulating coating covering peeling target side surfaces of a rectangular conductor wire. In the gripping step, abutting sections of a pair of gripping members abut on gripping target portions of the insulating coating, whereby the rectangular conductor wire is gripped between the abutting sections. In the peeling step, in a state where the rectangular conductor wire has been gripped by the gripping members, the peeling blades are moved relatively following a surface direction of the peeling target side surfaces while opposing each other sandwiching the peeling target side surfaces, whereby the peeling target portions are peeled.
    Type: Application
    Filed: September 25, 2018
    Publication date: April 4, 2019
    Inventors: Keiichiro Oka, Yosuke Komatsu, Kenji Masai, Tomotsugu Takahashi, Junya Shigeno
  • Publication number: 20180287447
    Abstract: An insulator of a coil winding component constituting part of a rotary electric machine is resin molded integrally with a divided iron core. A first accommodating groove in which a coil terminal wire can be arranged is formed on an outer end surface of a wiring member of the insulator. A plurality of recesses are formed in a circumferential direction of a stator core on a groove bottom surface of the first accommodating groove. Further, a rib, which supports the coil terminal wire that is arranged in the first accommodating groove, is disposed between the mutually adjacent recesses.
    Type: Application
    Filed: March 28, 2018
    Publication date: October 4, 2018
    Inventors: Kenji Kitamura, Tomotsugu Takahashi
  • Patent number: 8628839
    Abstract: A recording medium comprising a magnetic material inside, and having a Taber abrasion amount of 10 mg or less. Also provided is a recording medium comprising a magnetic material inside, and having, in an environment of 23° C. and 50% RH, a surface electroresistivity of 1×109 ?/sq to 2×1011 ?/sq and a volume electroresistivity of 1×1010 ?cm to 2×1012 ?cm.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: January 14, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tsukasa Matsuda, Eizo Kurihara, Shoji Yamaguchi, Kunihiro Takahashi, Mario Fuse, Yasunori Koda, Ryuichi Kisaka, Tomotsugu Takahashi
  • Patent number: 7687127
    Abstract: A label paper including a thermoplastic resin sheet (A) formed by stretching along at least one axis and heat treating at 50 to 250° C., an adhesive layer (B), and a release paper (C). Under a thermomechanical analysis with heating from a room temperature to 150° C., ? is in a range of from ?2.5 to 2.5 percent, and ?-? is in a range of from ?1.5 to 1.5 percent, where ? is a ratio of a dimension of the thermoplastic resin sheet (A) after the heating to a dimension of the thermoplastic resin sheet (A) before the heating, and ? is a ratio of a dimension of the release paper (C) after the heating to a dimension of the release paper (C) before the heating.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: March 30, 2010
    Assignee: Yupo Corporation
    Inventors: Tamio Shikano, Ichiro Ohkawachi, Hiroshi Koike, Tomotsugu Takahashi
  • Patent number: 7344283
    Abstract: Disclosed is a light reflector formed of a white polyolefin film which contains a polyolefin resin and a filler and is oriented at least monoaxially to have an areal draw ratio of from 1.3 to 80 times, which has a whole ray reflectance of at least 95% and undergoes a dimensional change of at most 1.5% when left at 70° C. for 300 hours, and which has a melting-starting temperature of 70° C. or higher. The light reflector hardly causes brightness unevenness of the planar light source when it is built in a planar light source device and used for a long period of time.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: March 18, 2008
    Assignee: Yupo Corporation
    Inventors: Takahiko Ueda, Hiroshi Koyama, Tomotsugu Takahashi
  • Patent number: 7298438
    Abstract: Disclosed is a semitransparent reflector having a whole light transmittance (T) of 10-80%, a whole light reflectance (R) of 20-90%, (T+R) of 80-100%, and (R?Rd) of 8-30% in which Rd is the whole light diffusion reflectance. When installed in a display device, the semitransparent reflector ensures efficient light transmission and reflection, and attains a high transmittance and a high reflectance of the display device, therefore significantly improving the letter visibility of the device.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: November 20, 2007
    Assignee: Yupo Corporation
    Inventors: Takahiko Ueda, Hiroshi Koyama, Tomotsugu Takahashi
  • Publication number: 20070146765
    Abstract: A recording medium comprising a magnetic material inside, and having a Taber abrasion amount of 10 mg or less. Also provided is a recording medium comprising a magnetic material inside, and having, in an environment of 23° C. and 50% RH, a surface electroresistivity of 1×109 ?/sq to 2×1011 ?/sq and a volume electroresistivity of 1×1010 ?cm to 2×1012 ?cm.
    Type: Application
    Filed: October 20, 2006
    Publication date: June 28, 2007
    Inventors: Tsukasa Matsuda, Eizo Kurihara, Shoji Yamaguchi, Kunihiro Takahashi, Mario Fuse, Yasunori Koda, Ryuichi Kisaka, Tomotsugu Takahashi
  • Publication number: 20070141290
    Abstract: A label paper including a thermoplastic resin sheet (A) formed by stretching along at least one axis and heat treating at 50 to 250° C., an adhesive layer (B), and a release paper (C). Under a thermomechanical analysis with heating from a room temperature to 150° C., ? is in a range of from ?2.5 to 2.5 percent, and ??? is in a range of from ?1.5 to 1.5 percent, where ? is a ratio of a dimension of the thermoplastic resin sheet (A) after the heating to a dimension of the thermoplastic resin sheet (A) before the heating, and ? is a ratio of a dimension of the release paper (C) after the heating to a dimension of the release paper (C) before the heating.
    Type: Application
    Filed: February 26, 2007
    Publication date: June 21, 2007
    Applicant: YUPO CORPORATION
    Inventors: Tamio SHIKANO, Ichiro Ohkawachi, Hiroshi Koike, Tomotsugu Takahashi
  • Patent number: 7166338
    Abstract: An optically semi-transmission reflection material comprises a resinous film comprising a thermoplastic resin, wherein the sum of total light ray transmittance, T %, and total light ray reflectance, R %, i.e., T+R, is 80 to 100%; an absolute value of their difference is |(T?R)|<50% when displayed value a and displayed value b in transmitted light are designated as aT and bT, respectively, and when in reflected light, displayed value b is designated as br, in the transmitted light, aT and bT are in the range of ?2?aT?2, and ?2?bT?1.3 and the difference between the displayed value b to the transmitted light and the reflected light is |(bT?br)|<10.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: January 23, 2007
    Assignee: Yupo Corporation
    Inventors: Hiroshi Koyama, Tomotsugu Takahashi
  • Publication number: 20060158585
    Abstract: A light reflector having a laminate film that comprises a substrate layer (A) containing a thermoplastic resin and a filler and stretch in at least one direction to have an areal draw ratio of from 1.3 to 80 times and a thermoplastic resin-containing layer (B), wherein the light reflector has a whole ray reflectance of at least 95% and a surface strength of at least 250 g. The light reflector has good optical properties and good workability in that, when stuck to various plates and shaped, it hardly looses, drops and peels from the substrate plates.
    Type: Application
    Filed: December 19, 2005
    Publication date: July 20, 2006
    Applicant: YUPO CORPORATION
    Inventors: Takahiko Ueda, Hiroshi Koyama, Tomotsugu Takahashi