Patents by Inventor Takeshi MURASAKA

Takeshi MURASAKA 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).

  • Bicycle rear derailleur
    Patent number: 9150281
    Abstract: A bicycle rear derailleur is basically provided with a base member, a cable operated structure, a movable member and a biasing member. The movable member is movably supported to the base member by the cable operated structure to move between a plurality of shift stage positions with respect to the base member. The biasing member is interposed between the first and second link members such that the movable member is biased towards one of a top shift stage position and a low shift stage position. The cable operated structure and the biasing member configured balance an operation energy used for shifting between each of the shift stage positions.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: October 6, 2015
    Assignee: Shimano Inc.
    Inventors: Sota Yamaguchi, Shinya Oseto, Takeshi Murasaka
  • BICYCLE REAR DERAILLEUR
    Publication number: 20130079184
    Abstract: A bicycle rear derailleur is basically provided with a base member, a cable operated structure, a movable member and a biasing member. The movable member is movably supported to the base member by the cable operated structure to move between a plurality of shift stage positions with respect to the base member. The biasing member is interposed between the first and second link members such that the movable member is biased towards one of a top shift stage position and a low shift stage position. The cable operated structure and the biasing member configured balance an operation energy used for shifting between each of the shift stage positions.
    Type: Application
    Filed: September 27, 2011
    Publication date: March 28, 2013
    Applicant: SHIMANO INC.
    Inventors: Sota YAMAGUCHI, Shinya Oseto, Takeshi MURASAKA