Patents by Inventor Naohiko Yamamoto

Naohiko Yamamoto 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).

  • Drive unit for windmill
    Patent number: 8823200
    Abstract: A cutaway portion is provided in a driving force transmission path and serves as a disconnection mechanism for disconnecting the driving force transmission path under the action of a torque of a predetermined magnitude or more, the driving force transmission path being a path through which a driving force is transmitted from an output shaft to a pinion. A partitioning portion is provided inside the body and disposed between the cutaway portion and a speed reduction portion so as to partition an area between the cutaway portion and the speed reduction portion.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: September 2, 2014
    Assignee: NABTESCO Corporation
    Inventors: Haruo Kodama, Naohiko Yamamoto
  • DRIVE UNIT FOR WINDMILL
    Publication number: 20130127272
    Abstract: A cutaway portion is provided in a driving force transmission path and serves as a disconnection mechanism for disconnecting the driving force transmission path under the action of a torque of a predetermined magnitude or more, the driving force transmission path being a path through which a driving force is transmitted from an output shaft to a pinion. A partitioning portion is provided inside the body and disposed between the cutaway portion and a speed reduction portion so as to partition an area between the cutaway portion and the speed reduction portion.
    Type: Application
    Filed: April 11, 2011
    Publication date: May 23, 2013
    Applicant: NABTESCO CORPORATION
    Inventors: Haruo Kodama, Naohiko Yamamoto