Patents by Inventor Yuki Uzawa

Yuki Uzawa 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: 9004224
    Abstract: An exhaust system of a saddle-ride type vehicle includes engagement units to improve the exterior design of a muffler cover and a muffler cover for an excellent appearance that can be easily and reliably attached. A cylindrical muffler is connected to an exhaust pipe for exhausting exhaust from an engine E. A front cap is provided on a front side of a muffler body portion. A muffler cover covers part of the exhaust pipe and the front cap. In the exhaust system, multiple engagement units respectively include multiple engagement receiving parts and multiple engagement claw parts. The engagement receiving parts are provided on an outer surface wall of the front cap with an interval therebetween in a circumferential direction about a muffler center axis of the muffler. The engagement claw parts corresponding respectively to the multiple engagement receiving parts and are disposed on a back surface of the muffler cover.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: April 14, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventor: Yuki Uzawa
  • Patent number: 8997921
    Abstract: An exhaust system of a saddle-ride type vehicle includes an end cap and a muffler close to each other to achieve uniformity therebetween and which is capable of preventing the occurrence of a knocking sound. The exhaust system of a saddle-ride type vehicle includes a muffler connected to an exhaust pipe for discharging exhaust of an engine E and an end cap is attached to a muffler rear end portion. In the end cap, an insertion portion thereof is inserted into and held by an end cap inserted portion provided in the muffler rear end portion, and multiple protruding portions are formed on an outer surface of the insertion portion at a predetermined interval in a circumferential direction of the outer surface. The multiple protruding portions come in contact with an inserted portion inner peripheral wall surface of the end cap inserted portion.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: April 7, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yuki Uzawa, Yoshitaka Hayama
  • Patent number: 8689751
    Abstract: The disclosed structure achieves a desired balance between higher-rigidity and weight saving in a connection-type rocker arm which integrally rocks a plural of arm portions. The rocker arm has a plurality of arm portions integrally formed on a swinging base end side of the rocker arm which are forked and extend towards a swinging end of the rocker arm, a connecting portion which integrally connects each swinging end of the arm portions, and a concave thinning portion which overlaps a swinging trajectory of the connecting portion, when viewed in the axis direction of the pivot shaft of the rocker arm.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: April 8, 2014
    Assignee: Honda Motor Co., Ltd
    Inventors: Katsuhiro Kubo, Yuki Uzawa, Masahiro Nakashima
  • Publication number: 20140090924
    Abstract: An exhaust system of a saddle-ride type vehicle includes an end cap and a muffler close to each other to achieve uniformity therebetween and which is capable of preventing the occurrence of a knocking sound. The exhaust system of a saddle-ride type vehicle includes a muffler connected to an exhaust pipe for discharging exhaust of an engine E and an end cap is attached to a muffler rear end portion. In the end cap, an insertion portion thereof is inserted into and held by an end cap inserted portion provided in the muffler rear end portion, and multiple protruding portions are formed on an outer surface of the insertion portion at a predetermined interval in a circumferential direction of the outer surface. The multiple protruding portions come in contact with an inserted portion inner peripheral wall surface of the end cap inserted portion.
    Type: Application
    Filed: September 25, 2013
    Publication date: April 3, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yuki UZAWA, Yoshitaka HAYAMA
  • Publication number: 20140090926
    Abstract: An exhaust system of a saddle-ride type vehicle includes engagement units to improve the exterior design of a muffler cover and a muffler cover for an excellent appearance that can be easily and reliably attached. A cylindrical muffler is connected to an exhaust pipe for exhausting exhaust from an engine E. A front cap is provided on a front side of a muffler body portion. A muffler cover covers part of the exhaust pipe and the front cap. In the exhaust system, multiple engagement units respectively include multiple engagement receiving parts and multiple engagement claw parts. The engagement receiving parts are provided on an outer surface wall of the front cap with an interval therebetween in a circumferential direction about a muffler center axis of the muffler. The engagement claw parts corresponding respectively to the multiple engagement receiving parts and are disposed on a back surface of the muffler cover.
    Type: Application
    Filed: September 26, 2013
    Publication date: April 3, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Yuki UZAWA
  • Patent number: 8136492
    Abstract: An internal combustion engine includes a variable valve control system which is operable to switch actions of an engine valve by slidably moving a rocker arm in the axial direction of a rocker-arm shaft, and which is capable of removing a restriction on the sliding movement of the rocker arm at accurate timings while employing a simplified configuration. When a trigger arm swings by a predetermined amount to the opposite side of a rocker arm, a left-hand engagement nail in engagement with an engagement groove disengages from the engagement groove, but a right-hand engagement nail still engages with an engagement groove. The left-hand engagement nail is placed on top of a left-hand deck-like portion. After that, when an action of the rocker arm makes the trigger arm further swing to the opposite side of the rocker arm, the right-hand engagement nail disengages from the engagement groove.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: March 20, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshihiro Takada, Katsuhiro Kubo, Yuki Uzawa, Kazuyuki Kosei
  • Publication number: 20110209679
    Abstract: The disclosed structure achieves a desired balance between higher-rigidity and weight saving in a connection-type rocker arm which integrally rocks a plural of arm portions. The rocker arm has a plurality of arm portions integrally formed on a swinging base end side of the rocker arm which are forked and extend towards a swinging end of the rocker arm, a connecting portion which integrally connects each swinging end of the arm portions, and a concave thinning portion which overlaps a swinging trajectory of the connecting portion, when viewed in the axis direction of the pivot shaft of the rocker arm.
    Type: Application
    Filed: February 4, 2011
    Publication date: September 1, 2011
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Katsuhiro Kubo, Yuki Uzawa, Masahiro Nakashima
  • Patent number: 7980213
    Abstract: The invention provides an internal combustion engine equipped with a variable valve control system which switches the actions of an engine valve by sliding a rocker arm in the axial direction of the rocker arm shaft, while enabling the restriction on the sliding movement of the rocker arm to be removed in accordance with the timings of the actions of the rocker arms irrespective of the engine speed. The internal combustion engine includes an actuator that moves a rocker arm shaft in its axial direction, a trigger arm that engages with a rocker arm to prohibit the sliding movement of the rocker arm, and a trigger pin which is configured to be activated by an axial movement of the rocker arm shaft to bring the trigger arm into action, and to disengage the trigger arm from the rocker arm.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: July 19, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takuya Warashina, Yuki Uzawa, Yuichi Tawarada, Yoshihiro Takada, Katsuhiro Kubo
  • Publication number: 20100077977
    Abstract: The invention provides an internal combustion engine equipped with a variable valve control system which switches the actions of an engine valve by sliding a rocker arm in the axial direction of the rocker arm shaft, while enabling the restriction on the sliding movement of the rocker arm to be removed in accordance with the timings of the actions of the rocker arms irrespective of the engine speed. The internal combustion engine includes an actuator that moves a rocker arm shaft in its axial direction, a trigger arm that engages with a rocker arm to prohibit the sliding movement of the rocker arm, and a trigger pin which is configured to be activated by an axial movement of the rocker arm shaft to bring the trigger arm into action, and to disengage the trigger arm from the rocker arm.
    Type: Application
    Filed: September 18, 2009
    Publication date: April 1, 2010
    Applicant: Honda Motor Co., Ltd.
    Inventors: Takuya Warashina, Yuki Uzawa, Yuichi Tawarada, Yoshihiro Takada, Katsuhiro Kubo
  • Publication number: 20100077979
    Abstract: An internal combustion engine includes a variable valve control system which is operable to switch actions of an engine valve by slidably moving a rocker arm in the axial direction of a rocker-arm shaft, and which is capable of removing a restriction on the sliding movement of the rocker arm at accurate timings while employing a simplified configuration. When a trigger arm swings by a predetermined amount to the opposite side of a rocker arm, a left-hand engagement nail in engagement with an engagement groove disengages from the engagement groove, but a right-hand engagement nail still engages with an engagement groove. The left-hand engagement nail is placed on top of a left-hand deck-like portion. After that, when an action of the rocker arm makes the trigger arm further swing to the opposite side of the rocker arm, the right-hand engagement nail disengages from the engagement groove.
    Type: Application
    Filed: September 18, 2009
    Publication date: April 1, 2010
    Applicant: Honda Motor Co., Ltd.
    Inventors: Yoshihiro Takada, Katsuhiro Kubo, Yuki Uzawa, Kazuyuki Kosei