Patents by Inventor Kazuo Samejima

Kazuo Samejima 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: 8720173
    Abstract: A mower unit configured to be supported to a work vehicle at a position between front wheels and rear wheels, comprises a mower deck; at least one blade supported by the mower deck; a climb-up assist member in which an inclined surface is formed for assisting the wheels in climbing over the mower unit; and a connecting device for detachably connecting the climb-up assist member to the mower unit in a service position in which the inclined surface assists the wheels in climbing over the mower unit.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: May 13, 2014
    Assignee: Kubota Corporation
    Inventors: Akihito Sugio, Kazuo Samejima, Yoshikazu Togoshi, Koji Fujiwara, Takuhisa Yamamoto, Eiji Satou
  • Patent number: 8336281
    Abstract: A mower unit configured to be supported to a work vehicle at a position between front wheels and rear wheels, comprises a mower deck; at least one blade supported by the mower deck; a climb-up assist member in which an inclined surface is formed for assisting the wheels in climbing over the mower unit; and a connecting device for detachably connecting the climb-up assist member to the mower unit in a service position in which the inclined surface assists the wheels in climbing over the mower unit.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: December 25, 2012
    Assignee: Kubota Corporation
    Inventors: Akihito Sugio, Kazuo Samejima, Yoshikazu Togoshi, Koji Fujiwara, Takuhisa Yamamoto, Eiji Satou
  • Patent number: 8266879
    Abstract: A riding mower comprises a raising and lowering mechanism (30, 33, 100), the raising and lowering control lever (27), and a PTO mechanism (17a, 17b) operated by a clutch lever (29). When the raising and lowering mechanism (30, 33, 100) reaches a predetermined height, a operatively connecting mechanism (5) transmits, to the raising and lowering control lever (27), a return-to-neutral displacement for returning the raising and lowering control lever (27) to the neutral position, and transmits, to the clutch lever (29), a disengaging displacement for returning the clutch lever (29) to the disengage position. A first adjusting operation member (55a) adjusts a triggering displacement at which the raising and lowering displacement is transmitted to the raising and lowering control lever (27) as the return-to-neutral displacement.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: September 18, 2012
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Hironori Tsuchihashi, Kazuhiro Ochi, Masaji Kure
  • Patent number: 8099938
    Abstract: A rear discharge type mower apparatus includes: a blade housing having a top plate, a front wall and at least one side wall and a first front guide plate and a second front guide plate. Each of the first and second front guide plates are located rearwardly of the front wall and have a shape extending substantially along a rotation path of a corresponding blade. The mower apparatus also includes a first auxiliary plate and a second auxiliary plate. A portion of the second auxiliary plate and the first auxiliary plate extend parallel to each other such that an opening that is opposed to a mowed grass discharge opening is formed by the rearward ends of the linear portion and the first auxiliary plate. The lower edges of the first and second auxiliary plates are closer to the top plate than the corresponding blade.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: January 24, 2012
    Assignee: Kubota Corporation
    Inventors: Masaji Kure, Yoshikazu Togoshi, Koji Fujiwara, Kazuo Samejima, Masatoshi Yamaguchi, Kazuo Koike, Yoshiyuki Esaki
  • Patent number: 7735306
    Abstract: A rear discharge type mower apparatus comprising a blade housing having a top plate, a front wall and at least one side wall; a support shaft supported by the blade housing and extending vertically; a rotatable blade supported by the support shaft, a tip end of the blade forming a rotation path; and a guide plate located rearwardly of the front wall and having a shape extending along the rotation path of a corresponding blade, and forming an opening for ejecting cut grass rearwardly. The guide plate has a first end located in an upstream position with respect to a rotating direction of the corresponding blade, and a second end located in a downstream position with respect to the rotating direction of the corresponding blade; and an auxiliary plate extending from an area of the first end into inside the rotation path of the corresponding blade.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: June 15, 2010
    Assignee: Kubota Corporation
    Inventors: Masaji Kure, Yoshikazu Togoshi, Koji Fujiwara, Kazuo Samejima, Masatoshi Yamaguchi, Kazuo Koike, Yoshiyuki Esaki
  • Publication number: 20100139228
    Abstract: A mower unit configured to be supported to a work vehicle at a position between front wheels and rear wheels, comprises a mower deck; at least one blade supported by the mower deck; a climb-up assist member in which an inclined surface is formed for assisting the wheels in climbing over the mower unit; and a connecting device for detachably connecting the climb-up assist member to the mower unit in a service position in which the inclined surface assists the wheels in climbing over the mower unit.
    Type: Application
    Filed: February 15, 2010
    Publication date: June 10, 2010
    Applicant: KUBOTA CORPORATION
    Inventors: Akihito Sugio, Kazuo Samejima, Yoshikazu Togoshi, Koji Fujiwara, Takuhisa Yamamoto, Eiji Satou
  • Patent number: 7685800
    Abstract: A mower unit configured to be supported to a work vehicle at a position between front wheels and rear wheels, comprises a mower deck; at least one blade supported by the mower deck; a climb-up assist member in which an inclined surface is formed for assisting the wheels in climbing over the mower unit; and a connecting device for detachably connecting the climb-up assist member to the mower unit in a service position in which the inclined surface assists the wheels in climbing over the mower unit.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: March 30, 2010
    Assignee: Kubota Corporation
    Inventors: Akihito Sugio, Kazuo Samejima, Yoshikazu Togoshi, Koji Fujiwara, Takuhisa Yamamoto, Eiji Satou
  • Patent number: 7685799
    Abstract: A mulching mower unit comprising a mower deck having a top plate, and a plurality of rotary blades arranged side by side inside the mower deck. A mulching baffle for providing at least part of boundary walls of a plurality of mulching chambers is detachably attached to the interior of the mower deck. A vertical guide wall constituting the mulching baffle has an inclined surface. A terminal end guide surface is formed in a terminal end portion of the vertical guide wall with respect to a direction of rotation of the rotary blade in a region around an opening for allowing the adjacent mulching chambers to communicate with each other, whereby grass clippings are deflected inwardly of the mulching chamber with which the terminal end guide surface is associated.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: March 30, 2010
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Masatoshi Yamaguchi, Junichi Kitamura
  • Publication number: 20090282799
    Abstract: A rear discharge type mower apparatus includes a blade housing, a support shaft supported by the blade housing, a rotatable blade supported by the support shaft, and a front guide plate having a shape extending substantially along the rotation path of a corresponding blade. The front guide plate forms an opening for ejecting cut grass rearwardly and has a downstream plate portion located in a downstream position with respect to a rotating direction of the corresponding blade and having an end defining one end of the opening. The downstream plate portion extends rearwardly of the blade housing and a distance from a center of rotation to the downstream plate portion is progressively decreased toward a rear end of the blade housing. At least a part of the downstream plate portion is located radially inside of the rotation path of the corresponding blade.
    Type: Application
    Filed: August 3, 2009
    Publication date: November 19, 2009
    Applicant: KUBOTA CORPORATION
    Inventors: Masaji Kure, Yoshikazu Togoshi, Koji Fujiwara, Kazuo Samejima, Masatoshi Yamaguchi, Kazuo Koike, Yoshiyuki Esaki
  • Patent number: 7594378
    Abstract: A mower tractor includes a vehicle body supported by a plurality of wheels; an engine mounted to the vehicle body; a mower suspended from the vehicle body; at least one grass collector bag for collecting grass cut by the mower; a grass collector bag holder supporting said at least one grass collector bag at a position on one side with respect to the engine; and a stopper portion for abutting against the grass collector bag so as to prevent the grass collector bag supported by the grass collector bag holder from moving toward the vehicle body.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: September 29, 2009
    Assignee: Kubota Corporation
    Inventors: Masato Asahara, Kazuo Samejima, Yoshikazu Togoshi, Akira Minoura, Yasunobu Nakatani, Osami Fujiwara
  • Patent number: 7458434
    Abstract: A lawn mower comprises: a plurality of wheels; a vehicle body supported by the wheels; a mower unit supported by said vehicle body; a driver's seat supported by said vehicle body; an engine supported by said vehicle body rearwardly of said driver's seat; a radiator disposed between said engine and said driver's seat; a hood for covering said engine; and a dust filtering case disposed at a forward portion of said hood for allowing ambient cooling air to be drawn into said radiator, the dust filtering case surrounding at least a part of the radiator and having a net portion on at least one side thereof, the net portion extending rearwardly beyond a front surface of said radiator.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: December 2, 2008
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Hironori Tsuchihashi, Teruo Shimamura, Yoshikazu Togoshi, Hiroshi Kawabata, Takeshi Komorida
  • Patent number: 7448194
    Abstract: A mower comprising: a cutting blade housing; rotating cutting blades; a rear plate disposed rearwardly the rotating cutting blades; a rear vertical wall that is supported by the cutting blade housing and that forms a first ventilation hole in a center portion in the transverse direction of the cutting blade housing.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: November 11, 2008
    Assignee: Kubota Corporation
    Inventors: Kazuo Koike, Masatoshi Yamaguchi, Akihito Sugio, Kazuo Samejima
  • Publication number: 20080236125
    Abstract: A mower unit configured to be supported to a work vehicle at a position between front wheels and rear wheels, comprises a mower deck; at least one blade supported by the mower deck; a climb-up assist member in which an inclined surface is formed for assisting the wheels in climbing over the mower unit; and a connecting device for detachably connecting the climb-up assist member to the mower unit in a service position in which the inclined surface assists the wheels in climbing over the mower unit.
    Type: Application
    Filed: March 5, 2008
    Publication date: October 2, 2008
    Applicant: Kubota Corporation
    Inventors: Akihito Sugio, Kazuo Samejima, Yoshikazu Togoshi, Koji Fujiwara, Takuhisa Yamamoto, Eiji Satou
  • Patent number: 7404282
    Abstract: A riding lawn mower having a front mower unit, comprises a plurality of wheels; a vehicle body supported by the wheels; an engine supported by the vehicle body for driving at least one of the wheels; a lift link supported by the vehicle body; a mower unit adapted to be disposed forwardly of the vehicle body, having at least one cutting blade, and supported to be pivotable about an axis of a first pivot pin relative to the lift link between a generally horizontal position wherein the at least one cutting blade faces the ground, and a generally vertical position wherein the at least one cutting blade is oriented forward; an assisting force exerting device for exerting an assisting force for moving the mower unit to the generally vertical position; a support link connected to an end of the assisting force exerting device, wherein the assisting force exerting device and the support link are disposed between the lift link and the mower unit; a fixing member having a first position for permitting the assisting forc
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: July 29, 2008
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Yoshikazu Togoshi, Yoshiyuki Esaki
  • Patent number: 7360352
    Abstract: A side discharge mower comprises, a mower deck having a top wall, a front wall depending from the top wall, at least one side wall, a rear wall depending from the top wall, and a discharge opening formed laterally of the mower deck, a first shaft supported by the mower deck and extending vertically, and a second shaft disposed closer than the first shaft to the discharge opening, a first blade rotatable about an axis of the first shaft so that distal ends thereof define a first circular path, a second blade rotatable about an axis of the second shaft so that distal ends thereof define a second circular path, a rear baffle disposed in a rear region of the mower deck, and an intermediate baffle extending from the rear baffle forward through an area adjacent a boundary between the first circular path and the second circular path, the intermediate baffle extending from the rear baffle forwardly beyond a line connecting the first shaft and the second shaft.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: April 22, 2008
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Yoshikazu Togoshi, Masatoshi Yamaguchi
  • Publication number: 20080072555
    Abstract: A mulching mower unit comprising a mower deck having a top plate, and a plurality of rotary blades arranged side by side inside the mower deck. A mulching baffle for providing at least part of boundary walls of a plurality of mulching chambers is detachably attached to the interior of the mower deck. A vertical guide wall constituting the mulching baffle has an inclined surface. A terminal end guide surface is formed in a terminal end portion of the vertical guide wall with respect to a direction of rotation of the rotary blade in a region around an opening for allowing the adjacent mulching chambers to communicate with each other, whereby grass clippings are deflected inwardly of the mulching chamber with which the terminal end guide surface is associated.
    Type: Application
    Filed: November 20, 2007
    Publication date: March 27, 2008
    Applicant: KUBOTA CORPORATION
    Inventors: Kazuo Samejima, Masatoshi Yamaguchi, Junichi Kitamura
  • Publication number: 20080053056
    Abstract: A mower comprising: a cutting blade housing; rotating cutting blades; a rear plate disposed rearwardly the rotating cutting blades; a rear vertical wall that is supported by the cutting blade housing and that forms a first ventilation hole in a center portion in the transverse direction of the cutting blade housing.
    Type: Application
    Filed: March 21, 2007
    Publication date: March 6, 2008
    Applicant: Kubota Corporation
    Inventors: Kazuo Koike, Masatoshi Yamaguchi, Akihito Sugio, Kazuo Samejima
  • Patent number: 7325387
    Abstract: A riding-type mower includes a plurality of wheels, a body supported by the plurality of wheels, at least one draft link couplable at one end to the body, a pair of support links coupled at one end to the body and arranged rearwardly from the at least one draft link, and a mower unit whose front is supported from the body via the at least one draft link and whose rear is supported from the body by the pair of support links.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: February 5, 2008
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Masato Asahara
  • Patent number: 7299613
    Abstract: A mulching mower unit comprising a mower deck having a top plate, and a plurality of rotary blades arranged side by side inside the mower deck. A mulching baffle for providing at least part of boundary walls of a plurality of mulching chambers is detachably attached to the interior of the mower deck. A vertical guide wall constituting the mulching baffle has an inclined surface. A terminal end guide surface is formed in a terminal end portion of the vertical guide wall with respect to a direction of rotation of the rotary blade in a region around an opening for allowing the adjacent mulching chambers to communicate with each other, whereby grass clippings are deflected inwardly of the mulching chamber with which the terminal end guide surface is associated.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: November 27, 2007
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Masatoshi Yamaguchi, Junichi Kitamura
  • Patent number: 7263819
    Abstract: A grass collecting apparatus includes a grass collecting container support; at least one grass collecting container mounted on the container support and having an upper end opening edge for receiving mowed grass or the like through a conduit, a guide hood for covering the grass collecting container from the above, a support portion for supporting the guide hood while allowing its displacement from a closed position to an opened position; a fixed sealing plate provided to the grass collecting container support in the vicinity of the support portion; and a movable sealing plate provided to the guide hood in the vicinity of the support portion. The movable sealing plate is disposed in opposition to the fixed sealing plate, and a free end of the movable sealing plate displaceable in association with opening/closing displacement of the guide hood approaches the fixed sealing plate at least when the guide hood is at the closed position or the opened position.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: September 4, 2007
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Yoshikazu Togoshi, Masato Asahara, Hiroshi Shimada