Patents by Inventor Teruko Nagaoka

Teruko Nagaoka 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: 8733076
    Abstract: An assembling method for a torque transmission chain, including a step of manufacturing split pieces of the chain in such a manner that a predetermined number of pins are held by a linear pin holding jig and then a predetermined number of links are press-fitted to the pins; a step of linearly arranging the split pieces so as to overlap split piece coupling links each arranged at any one of both ends of each of the split pieces; a step of inserting the pin through the overlapped split piece coupling links; and a step of pulling both ends of a whole of the plurality of split pieces coupled to each other via the split piece coupling links to thereby fix the pin to a pin fixing portion of the split piece coupling links.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: May 27, 2014
    Assignee: JTEKT Corporation
    Inventors: Yoshihisa Miura, Teruko Nagaoka
  • Patent number: 8376883
    Abstract: A power transmission device includes a tubular stabilizer which is arranged between a primary pulley and a secondary pulley, and through which a string portion of a power transmitting chain is passed so as to be movable relative to the stabilizer whereby movement of the power transmitting chain is restricted. The stabilizer is supported by the power transmitting chain and is moved in the traveling direction of the power transmitting chain as the power transmitting chain moves in the traveling direction, and a movement of the stabilizer of which the amount is larger than or equal to a predetermined amount is restricted by a restricting device.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: February 19, 2013
    Assignee: JTEKT Corporation
    Inventors: Yuya Inoue, Shinji Yamane, Yoshihisa Miura, Teruko Nagaoka
  • Publication number: 20120167540
    Abstract: An assembling method for a torque transmission chain, including a step of manufacturing split pieces of the chain in such a manner that a predetermined number of pins are held by a linear pin holding jig and then a predetermined number of links are press-fitted to the pins; a step of linearly arranging the split pieces so as to overlap split piece coupling links each arranged at any one of both ends of each of the split pieces; a step of inserting the pin through the overlapped split piece coupling links; and a step of pulling both ends of a whole of the plurality of split pieces coupled to each other via the split piece coupling links to thereby fix the pin to a pin fixing portion of the split piece coupling links.
    Type: Application
    Filed: September 22, 2010
    Publication date: July 5, 2012
    Applicant: JTEKT CORPORATION
    Inventors: Yoshihisa Miura, Teruko Nagaoka
  • Publication number: 20110034278
    Abstract: A power transmission device includes a tubular stabilizer which is arranged between a primary pulley and a secondary pulley, and through which a string portion of a power transmitting chain is passed so as to be movable relative to the stabilizer whereby movement of the power transmitting chain is restricted. The stabilizer is supported by the power transmitting chain and is moved in the traveling direction of the power transmitting chain as the power transmitting chain moves in the traveling direction, and a movement of the stabilizer of which the amount is larger than or equal to a predetermined amount is restricted by a restricting device.
    Type: Application
    Filed: July 27, 2010
    Publication date: February 10, 2011
    Applicant: JTEKT CORPORATION
    Inventors: Yuya INOUE, Shinji Yamane, Yoshihisa Miura, Teruko Nagaoka
  • Publication number: 20100035713
    Abstract: An object of the invention is to provide a power transmission chain in which noises and vibrations are further reduced by modifying a shape of a rolling contact face and an offset amount of a pin which would affect a contact shape of an end face of the pin, and a power transmission device provided with the same. A pin 14 of which a rolling contact face 14a is formed as an involute curve includes two types having different radiuses Rb of the involute curve, and two types of offset amounts are set with respect to a shape of an end face of the pin to be contacted with a conical face of a pulley. Combination of larger and smaller radiuses Rb of the involute curve and larger and smaller offset amounts with respect to the pin 14 is limited to either of three combinations, namely, the larger Rb—the larger offset, the larger Rb—the smaller offset, and the smaller Rb—the smaller offset.
    Type: Application
    Filed: December 7, 2007
    Publication date: February 11, 2010
    Inventors: Yoshihisa Miura, Teruko Nagaoka