Patents by Inventor Masaki Nishiyabu

Masaki Nishiyabu 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: 11002229
    Abstract: A hybrid vehicle includes: a crankcase extending from a lower portion of a cylinder of an engine, the crankcase including a main body portion defining a crank chamber in which a crankshaft of the engine is accommodated, the crankcase further including a breather portion projecting upwardly from the main body portion and defining a breather chamber into which blowby gas is introduced from the crank chamber; a breather tube that introduces the blowby gas from the breather chamber into the intake passage; and a drive motor disposed rearwardly of the cylinder and mounted on a top surface of the crankcase. The breather portion has a facing surface facing an outer peripheral surface of the drive motor. The facing surface of the breather portion is shaped to conform to the outer peripheral surface of the drive motor.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: May 11, 2021
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Masaki Nishiyabu, Yuji Hida
  • Publication number: 20210010591
    Abstract: A straddle vehicle includes: a shift drum that makes a shift change of a transmission including a plurality of gear trains; a transmission case enclosing the shift drum, the transmission case including a side wall portion provided with an insertion hole into which an end portion of the shift drum is inserted; and an actuator unit secured to an outer surface of the side wall portion, the actuator unit including a drive shaft that outputs drive power to rotate the shift drum, the drive shaft having the same rotational axis as the shift drum and being connected to the shift drum on the rotational axis.
    Type: Application
    Filed: June 8, 2020
    Publication date: January 14, 2021
    Inventors: Katsuya SANO, Masaki NISHIYABU, Satoaki ICHI, Kyohei IZUMI, Yuji HIDA
  • Publication number: 20210001707
    Abstract: A crankcase includes: a main body portion aligned with a drive motor in a direction perpendicular to a motor drive shaft; and an extended portion continuous with the main body portion and located lateral to a motor housing, the extended portion receiving insertion of one end of the motor drive shaft. A power transmission mechanism that transmits power from the motor drive shaft to an input shaft is located partly in a first region defined by the main body portion and partly in a second region defined by the extended portion and communicating with the first region.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 7, 2021
    Inventors: Masaki NISHIYABU, Satoaki ICHI, Kyohei IZUMI, Yuji HIDA
  • Publication number: 20210003210
    Abstract: A straddle vehicle includes: a prime mover; a hydraulically actuated main clutch; an oil control valve unit; a power unit case accommodating at least the main clutch; an oil pan mounted beneath the power unit case; a clutch-dedicated pump; a primary filter disposed in an oil passage between the oil pan and the clutch-dedicated pump; and a secondary filter disposed in an oil passage between the clutch-dedicated pump and the oil control valve unit. The primary filter and the secondary filter are mounted on a bottom surface of the power unit case and covered from below by the oil pan.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 7, 2021
    Inventors: Masaki NISHIYABU, Yuji HIDA
  • Publication number: 20210001706
    Abstract: A hybrid vehicle includes: a crankcase having a main chamber formed in a case body and accommodating at least a crankshaft, an input shaft, an output shaft, and a gear train, the crankcase further having a subsidiary chamber formed between the case body and a cover and accommodating at least a main clutch; a rotary member disposed in the subsidiary chamber so as to be capable of power transmission to the input shaft; and a power transmission member that transmits drive power from a drive motor to the rotary member.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 7, 2021
    Inventors: Masaki NISHIYABU, Satoaki ICHI, Kyohei IZUMI, Katsuya SANO, Yuji HIDA
  • Publication number: 20210003105
    Abstract: A hybrid vehicle includes: a crankcase extending from a lower portion of a cylinder of an engine, the crankcase including a main body portion defining a crank chamber in which a crankshaft of the engine is accommodated, the crankcase further including a breather portion projecting upwardly from the main body portion and defining a breather chamber into which blowby gas is introduced from the crank chamber; a breather tube that introduces the blowby gas from the breather chamber into the intake passage; and a drive motor disposed rearwardly of the cylinder and mounted on a top surface of the crankcase. The breather portion has a facing surface facing an outer peripheral surface of the drive motor. The facing surface of the breather portion is shaped to conform to the outer peripheral surface of the drive motor.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 7, 2021
    Inventors: Masaki NISHIYABU, Yuji HIDA
  • Publication number: 20210003208
    Abstract: A straddle vehicle includes: a prime mover; a hydraulically actuated main clutch disposed in a power transmission route between the prime mover and a drive wheel; an oil control valve unit that controls flow of a hydraulic oil supplied to the main clutch; and a power unit case including a case body and a cover removably mounted on the case body, the power unit case accommodating at least the main clutch. The oil control valve unit is secured to the case body.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 7, 2021
    Inventors: Masaki NISHIYABU, Kyohei IZUMI, Yuji HIDA
  • Publication number: 20200317293
    Abstract: A hybrid vehicle includes: an engine; an electric motor; a transmission; a main clutch; a primary gear configured to transmit rotational power from the engine to the main clutch; a pump including a driven shaft to which rotational power is input from the engine and the electric motor; a first one-way clutch configured to transmit power from the engine to the pump; and a second one-way clutch configured to transmit power from the electric motor to the pump. The first one-way clutch and the second one-way clutch are disposed around the input shaft and located between the primary gear and a gear train of the transmission.
    Type: Application
    Filed: February 12, 2020
    Publication date: October 8, 2020
    Inventor: Masaki NISHIYABU
  • Patent number: 8322770
    Abstract: A pick-up style utility vehicle according to the present invention has a front seat, a rear seat, and a cargo bed in this order from front, a cabin frame surrounding a riding space, and a screen shield partitioning the cargo bed and a rear riding space in front of the cargo bed. The cargo bed is changeable between an expanded state in which the cargo bed is expanded forward to the rear riding space and a non-expanded state not occupying the rear riding space. All or part of the screen shield is angle shiftable between the expanded state and the non-expanded state.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: December 4, 2012
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Hideyoshi Kosuge, Hirokazu Morita, Ryouji Negi, Masaki Nishiyabu, Tomohiro Kanazawa, Teruaki Yamamoto, Hideaki Shinnoki, Masashi Sakata
  • Publication number: 20110156441
    Abstract: A pick-up style utility vehicle according to the present invention has a front seat, a rear seat, and a cargo bed in this order from front, a cabin frame surrounding a riding space, and a screen shield partitioning the cargo bed and a rear riding space in front of the cargo bed. The cargo bed is changeable between an expanded state in which the cargo bed is expanded forward to the rear riding space and a non-expanded state not occupying the rear riding space. All or part of the screen shield is angle shiftable between the expanded state and the non-expanded state.
    Type: Application
    Filed: December 29, 2009
    Publication date: June 30, 2011
    Inventors: Hideyoshi Kosuge, Hirokazu Morita, Ryouji Negi, Masaki Nishiyabu, Tomohiro Kanazawa, Teruaki Yamamoto, Hideaki Shinnoki, Masashi Sakata