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).

  • Publication number: 20070068133
    Abstract: A rear discharge type mower apparatus comprises: 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; 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, wherein the guide plate has: a first end located in an upstream position with respect to a rotating direction of the corresponding blade and located rearwardly of a corresponding support shaft and the first end defining one end of the opening, and a second end located in a downstream position with respect to the rotating direction of the corresponding blade and located rearwardly of the corresponding support shaft and the second end defining the other end of the opening; an auxiliary plate extending from an area of the first end into
    Type: Application
    Filed: September 1, 2006
    Publication date: March 29, 2007
    Applicant: Kubota Corporation
    Inventors: Masaji Kure, Yoshikazu Togoshi, Koji Fujiwara, Kazuo Samejima, Masatoshi Yamaguchi, Kazuo Koike, Yoshiyuki Esaki
  • Publication number: 20060288682
    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: Application
    Filed: March 1, 2006
    Publication date: December 28, 2006
    Applicant: Kubota Corporation
    Inventors: Kazuo Samejima, Yoshikazu Togoshi, Yoshiyuki Esaki
  • Publication number: 20060230735
    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: Application
    Filed: March 1, 2006
    Publication date: October 19, 2006
    Applicant: Kubota Corporation
    Inventors: Kazuo Samejima, Yoshikazu Togoshi, Masatoshi Yamaguchi
  • Patent number: 7059109
    Abstract: A mid-mount mower having a front frame unit including a pair of right and left front longitudinal frames, a first cross frame interconnecting the front longitudinal frames in forward positions thereof longitudinally of the vehicle body, and a second cross frame interconnecting the front longitudinal frames in rearward positions thereof longitudinally of the vehicle body, the front frame unit supporting the front wheel unit and also supporting a lift mechanism for vertically movably suspending the mower unit; a rear frame unit including a pair of right and left rear longitudinal frames, the rear frame unit being connected to the front frame unit; and a rear wheel drive unit interconnecting the rear longitudinal frames. The second cross frame has a downwardly opening recess disposed adjacent a middle position thereof, the recess allowing entry thereto of an upwardly protruding portion of the mower unit without interference when the mower unit is raised by the lift mechanism.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: June 13, 2006
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Masato Asahara, Hiroshi Shimada, Akira Minoura, Yoshikazu Togoshi, Osami Fujiwara, Yoshiyuki Esaki
  • Publication number: 20060032205
    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: Application
    Filed: August 5, 2005
    Publication date: February 16, 2006
    Applicant: Kubota Corporation
    Inventors: Kazuo Samejima, Masato Asahara
  • Publication number: 20060016632
    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: Application
    Filed: July 13, 2005
    Publication date: January 26, 2006
    Applicant: Kubota Corporation
    Inventors: Kazuo Samejima, Hironori Tsuchihashi, Teruo Shimamura, Yoshikazu Togoshi, Hiroshi Kawabata, Takeshi Komorida
  • Patent number: 6973768
    Abstract: A mid-mount mower having a body frame supported above the ground by front wheels and rear wheels, the body frame having a front cross frame in a forward portion thereof with respect to a longitudinal direction of a vehicle body, and a mower unit disposed between the front wheels and rear wheels. A main jack body is mounted on the front cross frame to be pivotable about a pivot shaft extending longitudinally of the vehicle body. The main jack body is in a storage position extending along the front cross frame when pivoted to a first pivot position about the pivot shaft, and in a substantially vertical position relative to the ground when pivoted to a second pivot position about the pivot shaft. The main jack body has a controlled portion exposed upward when the main jack body is in the vertical position.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: December 13, 2005
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Yoshikazu Togoshi, Osami Fujiwara, Yoshiyuki Esaki, Akira Minoura
  • Publication number: 20050217231
    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: Application
    Filed: September 8, 2004
    Publication date: October 6, 2005
    Applicant: KUBOTA CORPORATION
    Inventors: Kazuo Samejima, Yoshikazu Togoshi, Masato Asahara, Hiroshi Shimada
  • Publication number: 20050217232
    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: Application
    Filed: March 9, 2005
    Publication date: October 6, 2005
    Applicant: KUBOTA CORPORATION
    Inventors: Masato Asahara, Kazuo Samejima, Yoshikazu Togoshi, Akira Minoura, Yasunobu Nakatani, Osami Fujiwara
  • Patent number: 6877302
    Abstract: A mid-mount mower including a body frame supported above the ground by front wheels and rear wheels, and a mower unit vertically movably suspended from the body frame between the front wheels and rear wheels. The mower unit includes a mower deck having a top board, and a front wall, side walls and a rear wall depending from the top board. The mower deck has a rearwardly opening recess formed in a sideways middle region at a rear end thereof. A mower input shaft is disposed on the top board for transmitting power to the rotary blades juxtaposed inside the mower deck to be rotatable about three vertical axes arranged sideways. The mower input shaft extends longitudinally of the body frame and has a rear connecting end. A PTO shaft is provided in a rear transmission mechanism that drives the rear wheels. The PTO shaft extends longitudinally of the body frame and has a forward connecting end.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: April 12, 2005
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Kenichi Chujo, Teruo Shimamura, Yoshiyuki Esaki, Masatoshi Yamaguchi, Yoshihiro Kawahara
  • Publication number: 20050039430
    Abstract: A lawn mower comprises a blade drive shaft with a blade rotatably mounted inside a mower deck supported by a vehicle body, a blower unit including a cylindrical blower housing connected to a grass clippings discharging section provided in a side end region of the mower deck, a vertical drive shaft having a shaft portion with vanes attached thereto inside the blower housing and a shaft portion extending upward through the blower housing, and a discharging sleeve projecting rearwardly along an outer tangent line of the blower housing, a grass collecting apparatus mounted rearwardly of the vehicle body, a duct for allowing the discharging sleeve to communicate with the grass collecting apparatus, and a belt-type blower driving mechanism for driving the vertical drive shaft of the blower unit.
    Type: Application
    Filed: March 9, 2004
    Publication date: February 24, 2005
    Applicant: KUBOTA CORPORATION
    Inventors: Kazuo Samejima, Yoshikazu Togoshi, Masato Asahara, Yoshiyuki Esaki, Akira Minoura, Osami Fujiwara
  • Patent number: 6854249
    Abstract: A lawn mower comprises a blade drive shaft with a blade rotatably mounted inside a mower deck supported by a vehicle body, a blower unit including a cylindrical blower housing connected to a grass clippings discharging section provided in a side end region of the mower deck, a vertical drive shaft having a shaft portion with vanes attached thereto inside the blower housing and a shaft portion extending upward through the blower housing, and a discharging sleeve projecting rearwardly along an outer tangent line of the blower housing, a grass collecting apparatus mounted rearwardly of the vehicle body, a duct for allowing the discharging sleeve to communicate with the grass collecting apparatus, and a belt-type blower driving mechanism for driving the vertical drive shaft of the blower unit.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: February 15, 2005
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Yoshikazu Togoshi, Masato Asahara, Yoshiyuki Esaki, Akira Minoura, Osami Fujiwara
  • Patent number: 6848246
    Abstract: A mower unit attachable to a vehicle body includes a mower deck. The mower deck defines a grass discharge opening at an opposite side of one side wall, and has a plurality of rotary blades juxtaposed inside the mower deck to be rotatable about vertical axes. All of the rotary blades are rotatable in the same direction so that a front half, with respect to a traveling direction, of a track of rotation of each rotary blade points toward the side having the grass discharge opening. A rear baffle depends from a top board of the mower deck for enclosing the rotary blades in combination with a front wall, and surrounds, in form of a concentric part circle, a rear portion of the track of rotation of each rotary blade. A front baffle and a mulching baffle are provided to be selectively attached to the mower deck to be located forwardly of the tracks of rotation of the rotary blades.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: February 1, 2005
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Yoshikazu Togoshi, Teruo Shimamura, Masatoshi Yamaguchi, Yoshiyuki Esaki, Kenichi Chujo, Yoshihiro Kawahara
  • Publication number: 20040237492
    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: February 26, 2004
    Publication date: December 2, 2004
    Applicant: KUBOTA CORPORATION
    Inventors: Kazuo Samejima, Masatoshi Yamaguchi, Junichi Kitamura
  • Publication number: 20040154274
    Abstract: A mid-mount mower having a body frame supported above the ground by front wheels and rear wheels, the body frame having a front cross frame in a forward portion thereof with respect to a longitudinal direction of a vehicle body, and a mower unit disposed between the front wheels and rear wheels. A main jack body is mounted on the front cross frame to be pivotable about a pivot shaft extending longitudinally of the vehicle body. The main jack body is in a storage position extending along the front cross frame when pivoted to a first pivot position about the pivot shaft, and in a substantially vertical position relative to the ground when pivoted to a second pivot position about the pivot shaft. The main jack body has a controlled portion exposed upward when the main jack body is in the vertical position.
    Type: Application
    Filed: August 26, 2003
    Publication date: August 12, 2004
    Applicant: KUBOTA CORPORATION
    Inventors: Kazuo Samejima, Yoshikazu Togoshi, Osami Fujiwara, Yoshiyuki Esaki, Akira Minoura
  • Publication number: 20040154278
    Abstract: A mid-mount mower having a front frame unit including a pair of right and left front longitudinal frames, a first cross frame interconnecting the front longitudinal frames in forward positions thereof longitudinally of the vehicle body, and a second cross frame interconnecting the front longitudinal frames in rearward positions thereof longitudinally of the vehicle body, the front frame unit supporting the front wheel unit and also supporting a lift mechanism for vertically movably suspending the mower unit; a rear frame unit including a pair of right and left rear longitudinal frames, the rear frame unit being connected to the front frame unit; and a rear wheel drive unit interconnecting the rear longitudinal frames. The second cross frame has a downwardly opening recess disposed adjacent a middle position thereof, the recess allowing entry thereto of an upwardly protruding portion of the mower unit without interference when the mower unit is raised by the lift mechanism.
    Type: Application
    Filed: August 26, 2003
    Publication date: August 12, 2004
    Applicant: KUBOTA CORPORATION
    Inventors: Kazuo Samejima, Masato Asahara, Hiroshi Shimada, Akira Minoura, Yoshikazu Togoshi, Osami Fujiwara, Yoshiyuki Esaki
  • Patent number: 6708805
    Abstract: A riding tractor in which engine output is transmitted to a running device through a hydrostatic stepless transmission. The tractor has a braking device for acting on the running device, a first brake operating device and a second brake operating device operable independently of each other for operating the braking device, and a brake control device for linking control displacements from the first brake operating device and the second the brake operating device to the brake device.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: March 23, 2004
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Akira Minoura, Yoshikazu Togoshi, Osami Fujiwara
  • Publication number: 20040006959
    Abstract: A mid-mount mower including a body frame supported above the ground by front wheels and rear wheels, and a mower unit vertically movably suspended from the body frame between the front wheels and rear wheels. The mower unit includes a mower deck having a top board, and a front wall, side walls and a rear wall depending from the top board. The mower deck has a rearwardly opening recess formed in a sideways middle region at a rear end thereof. A mower input shaft is disposed on the top board for transmitting power to the rotary blades juxtaposed inside the mower deck to be rotatable about three vertical axes arranged sideways. The mower input shaft extends longitudinally of the body frame and has a rear connecting end. A PTO shaft is provided in a rear transmission mechanism that drives the rear wheels. The PTO shaft extends longitudinally of the body frame and has a forward connecting end.
    Type: Application
    Filed: March 3, 2003
    Publication date: January 15, 2004
    Applicant: KUBOTA CORPORATION
    Inventors: Kazuo Samejima, Kenichi Chujo, Teruo Shimamura, Yoshiyuki Esaki, Masatoshi Yamaguchi, Yoshihiro Kawahara
  • Publication number: 20040006960
    Abstract: A mower unit attachable to a vehicle body includes a mower deck. The mower deck defines a grass discharge opening at an opposite side of one side wall, and has a plurality of rotary blades juxtaposed inside the mower deck to be rotatable about vertical axes. All of the rotary blades are rotatable in the same direction so that a front half, with respect to a traveling direction, of a track of rotation of each rotary blade points toward the side having the grass discharge opening. A rear baffle depends from a top board of the mower deck for enclosing the rotary blades in combination with a front wall, and surrounds, in form of a concentric part circle, a rear portion of the track of rotation of each rotary blade. A front baffle and a mulching baffle are provided to be selectively attached to the mower deck to be located forwardly of the tracks of rotation of the rotary blades.
    Type: Application
    Filed: March 3, 2003
    Publication date: January 15, 2004
    Applicant: KUBOTA CORPORATION
    Inventors: Kazuo Samejima, Yoshikazu Togoshi, Teruo Shimamura, Masatoshi Yamaguchi, Yoshiyuki Esaki, Kenichi Chujo, Yoshihiro Kawahara
  • Patent number: 6675567
    Abstract: A mid-mount type lawn tractor having idle wheels disposed at one end in a fore and aft direction of a vehicle body, drive wheels disposed at the other end in the fore and aft direction of the vehicle body, a mower unit connected to the vehicle body between the idle wheels and drive wheels. The lawn tractor includes a wheel support frame supporting the idle wheels and pivotably connected to the vehicle body. A pivotal movement of the wheel support frame relative to the vehicle body displaces the idle wheels relative to the vehicle body, to produce a running posture or a jack-up posture lifting at least part of the vehicle body. The pivotal movement of the wheel support frame is caused by a jack device.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: January 13, 2004
    Assignee: Kubota Corporation
    Inventors: Kazuo Samejima, Yoshikazu Togoshi, Yoshiyuki Esaki, Hironori Tsuchihashi, Yoshihiro Kawahara, Osami Fujiwara, Teruo Shimamura