Patents by Inventor Tomonao Nagamura

Tomonao Nagamura 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: 9334628
    Abstract: A motor grader is provided with an engine, front and rear travel wheels, a transmission, a work implement, a control unit, and a vehicle speed adjusting knob. The transmission has hydraulic clutches for switching between forward and reverse travel and for switching between speed stages. The transmission changes the speed of power from the engine, and transmits the power to either the front travel wheels and/or to the rear travel wheels. The work implement includes a blade for grading. During travel at a forward first speed, the control unit causes one of the hydraulic clutches of the transmission to operate as a braking clutch such that the motor grader travels at a very low speed. The vehicle speed adjusting knob is a member for setting the vehicle speed during very low-speed travel to an arbitrary speed.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: May 10, 2016
    Assignee: KOMATSU LTD.
    Inventors: Tomonao Nagamura, Tetsuya Morimoto, Michihiro Aida
  • Publication number: 20140345890
    Abstract: A motor grader is provided with an engine, front and rear travel wheels, a transmission which has hydraulic clutches for switching between forward and reverse travel and for switching between speed stages, changes the speed of power from the engine, and transmits the power to either the front travel wheels and/or to the rear travel wheels; a work implement which includes a blade for grading; a very low-speed travel controlling means; and a vehicle speed adjusting knob. During travel at a forward first speed, the very low-speed travel controlling means causes one of the hydraulic clutches of the transmission to operate as a braking clutch, causing the motor grader to travel at a very low speed. The vehicle speed adjusting knob is a member for setting the vehicle speed during very low-speed travel to an arbitrary speed.
    Type: Application
    Filed: December 21, 2012
    Publication date: November 27, 2014
    Inventors: Tomonao Nagamura, Tetsuya Morimoto, Michihiro Aida
  • Patent number: 8596160
    Abstract: The invention provides a steering apparatus which includes: an inner column 3; an outer column 4 fitted with the inner column 3 in such a manner that it is movable in a telescopic manner; a steering shaft 102 which is rotatably supported on the inner column 3 and outer column 4, and on the vehicle body rearward side of which a steering wheel 103 can be mounted; a lock apparatus 7 including a lock pin 73A which can be operated by an actuator to thereby prevent the rotation of the steering shaft 102; and, a lock housing 71 which is formed integrally with the outer column 4 and stores the lock apparatus 7 therein.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: December 3, 2013
    Assignee: NSK Ltd.
    Inventors: Tomonao Nagamura, Naoki Sawada, Wataru Hagiwara, Masaki Tomaru, Seiichi Moriyama
  • Publication number: 20100242665
    Abstract: The invention provides a steering apparatus which includes: an inner column 3; an outer column 4 fitted with the inner column 3 in such a manner that it is movable in a telescopic manner; a steering shaft 102 which is rotatably supported on the inner column 3 and outer column 4, and on the vehicle body rearward side of which a steering wheel 103 can be mounted; a lock apparatus 7 including a lock pin 73A which can be operated by an actuator to thereby prevent the rotation of the steering shaft 102; and, a lock housing 71 which is formed integrally with the outer column 4 and stores the lock apparatus 7 therein.
    Type: Application
    Filed: November 12, 2008
    Publication date: September 30, 2010
    Applicant: NSK Ltd.
    Inventors: Tomonao Nagamura, Naoki Sawada, Wataru Hagiwara, Masaki Tomaru, Seiichi Moriyama