Patents by Inventor Koji Nada

Koji Nada 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: 10538272
    Abstract: A multi-purpose vehicle includes a rollover protection structure frame (ROPS frame) associated with a seat. The ROPS frame includes right and left front struts, and right and left rear struts. A handrail frame is attached to a lateral outer side of the seat. A cover member is attached to the handrail frame and extends upwards from the handrail frame.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: January 21, 2020
    Assignee: Kubota Corporation
    Inventors: Koji Nada, Hiroki Bessho, Sechan Park, Masaru Nakaji
  • Patent number: 10442288
    Abstract: A fuel tank for a work vehicle is disclosed. The fuel tank includes a tank body, an oil filling cylindrical portion protruding from the tank body, and an oil filler cap detachably attached to the oil filling cylindrical portion for opening/closing an oil filling opening of the oil filling cylindrical portion, A cap body of the oil filler cap has a tubular portion to be detachably fitted on the oil filling cylindrical portion and a lid portion formed at an upper end portion of the tubular portion for opening/closing the oil filling opening. A skirt portion extends from the cap body to opposite side to the lid portion relative to the tubular portion, a diameter of an extending end portion of the skirt portion being larger than a diameter of the tubular portion of the cap body.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: October 15, 2019
    Assignee: Kubota Corporation
    Inventors: Koji Nada, Takeshi Tsuchiya, Kazuyuki Tashiro, Hiroki Bessho
  • Publication number: 20190263254
    Abstract: A fuel tank for a work vehicle is disclosed. The fuel tank includes a tank body, an oil filling cylindrical portion protruding from the tank body, and an oil filler cap detachably attached to the oil filling cylindrical portion for opening/closing an oil filling opening of the oil filling cylindrical portion, A cap body of the oil filler cap has a tubular portion to be detachably fitted on the oil filling cylindrical portion and a lid portion formed at an upper end portion of the tubular portion for opening/closing the oil filling opening. A skirt portion extends from the cap body to opposite side to the lid portion relative to the tubular portion, a diameter of an extending end portion of the skirt portion being larger than a diameter of the tubular portion of the cap body.
    Type: Application
    Filed: October 16, 2018
    Publication date: August 29, 2019
    Inventors: Koji Nada, Takeshi Tsuchiya, Kazuyuki Tashiro, Hiroki Bessho
  • Publication number: 20180297641
    Abstract: A multi-purpose vehicle includes a rollover protection structure frame (ROPS frame) associated with a seat. The ROPS frame includes right and left front struts, and right and left rear struts. A handrail frame is attached to a lateral outer side of the seat. A cover member is attached to the handrail frame and extends upwards from the handrail frame.
    Type: Application
    Filed: December 11, 2017
    Publication date: October 18, 2018
    Inventors: Koji Nada, Hiroki Bessho, Sechan Park, Masaru Nakaji
  • Patent number: 9487149
    Abstract: A work vehicle includes a vehicle body, an occupants' section provided in the vehicle body and having a driver's seat and a passenger's seat and a storage space that is provided under seats and opened upwards, the storage space having a first storage space section disposed under the driver's seat and a second storage space section disposed under the passenger's seat. The seats are supported to be pivotable about an axis extending along the width direction of the vehicle body and access to the first storage space section and the second storage space section is made possible by upwardly pivoting these seats. The driver's seat is slidable along the front-rear direction of the vehicle body. The first storage space section has a front-rear length shorter than the front-rear length of the second storage space section.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: November 8, 2016
    Assignee: Kubota Corporation
    Inventors: Hiroshi Shimada, Koji Nada
  • Patent number: 8720977
    Abstract: In a door (25) of a cabin for work vehicle, which door (25) opens and closes an entrance of the cabin and includes a door main body (25A) having a plurality of accessories (A), the door main body (25A) is formed as a hollow welded unified structure having a door cavity (25B), by welding an inner panel (27) to an outer panel (28) each made of a press-molded sheet-metal. An accessory attaching portion (B) is integrally molded with the inner panel (27), and the outer panel (28) has an opening (28J) formed therein for part assembly which allows the accessories (A) to be brought into the door cavity (25B) and assembled to the accessory attaching portion (B). The outer pane (28) is further provided with a decorative cover (60) for closing the opening (28J).
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: May 13, 2014
    Assignee: Kubota Corporation
    Inventors: Norimi Nakamura, Koji Nada, Hiroaki Kitaguchi
  • Patent number: 8720299
    Abstract: A tiltable steering wheel apparatus comprises a tilting mechanism provided under a grip portion of a steering wheel. The tilting mechanism includes a steering wheel support member for supporting the steering wheel to be tiltable about a pivotal axis extending along a transverse direction of a vehicle body, and a control lever switchable between a tilting allowing mode for allowing tilting movement of the steering wheel and a tilting preventing mode for preventing tilting movement of the steering wheel. The control lever has an extension extending toward the grip portion with a manual control portion provided in a distal end thereof to be operable with the fingers of the operator holding the grip portion of the steering wheel.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: May 13, 2014
    Assignee: Kubota Corporation
    Inventors: Norimi Nakamura, Koji Fujiwara, Hiroaki Kitaguchi, Koji Nada
  • Publication number: 20120248813
    Abstract: In a door (25) of a cabin for work vehicle, which door (25) opens and closes an entrance of the cabin and includes a door main body (25A) having a plurality of accessories (A), the door main body (25A) is formed as a hollow welded unified structure having a door cavity (25B), by welding an inner panel (27) to an outer panel (28) each made of a press-molded sheet-metal. An accessory attaching portion (B) is integrally molded with the inner panel (27), and the outer panel (28) has an opening (28J) formed therein for part assembly which allows the accessories (A) to be brought into the door cavity (25B) and assembled to the accessory attaching portion (B). The outer pane (28) is further provided with a decorative cover (60) for closing the opening (28J).
    Type: Application
    Filed: September 14, 2011
    Publication date: October 4, 2012
    Applicant: KUBOTA CORPORATION
    Inventors: Norimi Nakamura, Koji Nada, Hiroaki Kitaguchi
  • Publication number: 20110314953
    Abstract: A tiltable steering wheel apparatus comprises a tilting mechanism provided under a grip portion of a steering wheel. The tilting mechanism includes a steering wheel support member for supporting the steering wheel to be tiltable about a pivotal axis extending along a transverse direction of a vehicle body, and a control lever switchable between a tilting allowing mode for allowing tilting movement of the steering wheel and a tilting preventing mode for preventing tilting movement of the steering wheel. The control lever has an extension extending toward the grip portion with a manual control portion provided in a distal end thereof to be operable with the fingers of the operator holding the grip portion of the steering wheel.
    Type: Application
    Filed: March 18, 2011
    Publication date: December 29, 2011
    Applicant: KUBOTA CORPORATION
    Inventors: Norimi Nakamura, Koji Fujiwara, Hiroaki Kitaguchi, Koji Nada
  • Patent number: 8007403
    Abstract: A work vehicle includes a hydraulic stepless speed changing apparatus and a gear type speed changing apparatus operable to receive output from the hydraulic stepless speed changing apparatus to convert it into a plurality of stages of speed. A return oil passage connected to a high-pressure side circuit of the hydraulic stepless speed changing apparatus is connected to a hydraulic tank. The return oil passage incorporates an unload valve and a throttle valve, between which an operably coupling mechanism is provided. This operably coupling mechanism switches over the unload valve to an unload condition in response to an operational displacement of a brake operating member for operating a brake to its braking side.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: August 30, 2011
    Assignee: Kubota Corporation
    Inventors: Yuuki Ishida, Hiroshi Shimada, Koji Nada, Masaru Nakaji, Hiroki Bessho, Masatake Murakawa, Yasunobu Nakatani
  • Patent number: 7673920
    Abstract: An operator's station structure for a work vehicle having a motor section, comprising: a seat that is disposed on the operator's station for a work vehicle and has a moveable seat part; and a removable storage box that is disposed below the seat, that has an upwardly opening shape, and that has an interior accessible by moving the seat part.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: March 9, 2010
    Assignee: Kubota Corporation
    Inventors: Norimi Nakamura, Koji Nada, Shoichiro Kawamura, Masaki Hayashi, Masaru Nakaji, Shinichiro Saji, Takeshi Tsuchiya
  • Publication number: 20090239706
    Abstract: A work vehicle includes a hydraulic stepless speed changing apparatus and a gear type speed changing apparatus operable to receive output from the hydraulic stepless speed changing apparatus to convert it into a plurality of stages of speed. A return oil passage connected to a high-pressure side circuit of the hydraulic stepless speed changing apparatus is connected to a hydraulic tank. The return oil passage incorporates an unload valve and a throttle valve, between which an operably coupling mechanism is provided. This operably coupling mechanism switches over the unload valve to an unload condition in response to an operational displacement of a brake operating member for operating a brake to its braking side.
    Type: Application
    Filed: September 4, 2008
    Publication date: September 24, 2009
    Applicant: KUBOTA CORPORATION
    Inventors: Yuuki Ishida, Hiroshi Shimada, Koji Nada, Masaru Nakaji, Hiroki Bessho, Masatake Murakawa, Yasunobu Nakatani
  • Publication number: 20080084082
    Abstract: An operator's station structure for a work vehicle having a motor section, comprising: a seat that is disposed on the operator's station for a work vehicle and has a moveable seat part; and a removable storage box that is disposed below the seat, that has an upwardly opening shape, and that has an interior accessible by moving the seat part.
    Type: Application
    Filed: March 21, 2007
    Publication date: April 10, 2008
    Applicant: Kubota Corporation
    Inventors: Norimi Nakamura, Koji Nada, Shoichiro Kawamura, Masaki Hayashi, Masaru Nakaji, Shinichiro Saji, Takeshi Tsuchiya