Patents by Inventor Masashi Osuga
Masashi Osuga 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).
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Patent number: 9180850Abstract: An operating system is formed in which an engagement shaft supported on an end portion of a brake piston is inserted through an engagement hole portion of a balance member; an operation wire is connected to the balance member via a coupling pin; and brake operating arms of rear wheel brake mechanisms are operated by a pair of arm portions of the balance member. A broad area is formed in the engagement hole portion in a manner allowing the balance member to swing about the coupling pin when the operation wire is pulled.Type: GrantFiled: March 13, 2012Date of Patent: November 10, 2015Assignee: KUBOTA CORPORATIONInventors: Takashi Kuramoto, Masashi Osuga, Masaki Hayashi, Shinichiro Saji
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Publication number: 20130048445Abstract: An operating system is formed in which an engagement shaft supported on an end portion of a brake piston is inserted through an engagement hole portion of a balance member; an operation wire is connected to the balance member via a coupling pin; and brake operating arms of rear wheel brake mechanisms are operated by a pair of arm portions of the balance member. A broad area is formed in the engagement hole portion in a manner allowing the balance member to swing about the coupling pin when the operation wire is pulled.Type: ApplicationFiled: March 13, 2012Publication date: February 28, 2013Applicant: KUBOTA CORPORATIONInventors: Takashi KURAMOTO, Masashi OSUGA, Masaki HAYASHI, Shinichiro SAJI
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Patent number: 8297386Abstract: A work vehicle including: a body frame; an engine supported by the body frame through an elastic body; a belt transmission mechanism connected to an output shaft of the engine in a power transmissive manner; and a power takeoff (PTO) mechanism connected to the belt transmission mechanism in a power transmissive manner to take out power from the engine. A PTO support bracket configured to support the PTO mechanism is attached to the engine.Type: GrantFiled: March 5, 2009Date of Patent: October 30, 2012Assignee: Kubota CorporationInventors: Masashi Osuga, Shoko Koda, Hironobu Nishihara, Takashi Kuramoto, Satoshi Ogata, Hiroshi Kawabata
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Patent number: 8205701Abstract: An operating system for a tractor to which an implement is attachable, the operating system comprises: a steering wheel provided rearwardly of a hood that houses an engine located in a forward region of the tractor; a control panel provided rearwardly of the hood and adjacent the steering wheel; a center cover extending generally vertically below the steering wheel; an operation lever provided at a position laterally of the control panel; a valve unit with a pair of spools, the valve unit being located at a lower position with respect to the steering wheel and being covered by the center cover; a link mechanism that links the operation lever and the pair of spools, the link mechanism being covered by the center cover.Type: GrantFiled: July 6, 2009Date of Patent: June 26, 2012Assignee: Kubota CorporationInventors: Takashi Kuramoto, Masashi Osuga, Hiroshi Shimada, Yoshio Tomiyama, Takeshi Komorida, Hironobu Nishihara, Kenji Nishihara, Takashi Shibata
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Patent number: 8056306Abstract: A rear discharge mower comprising: a first shaft; a first blade that is rotated in unison with the first shaft; a second shaft that is configured to be rotated in a direction opposite from a rotational direction of the first shaft; a second blade that is rotated in unison with the second shaft, wherein a grass-clippings discharge path is formed through which grass clippings are discharged in a rearward direction from the area between the first shaft and second shaft; an enclosing casing that supports the blade shafts; and a power train that is accommodated in the enclosing casing and that transmits power to the first and second blade shafts.Type: GrantFiled: August 20, 2009Date of Patent: November 15, 2011Assignee: Kubota CorporationInventors: Kenji Nishihara, Takashi Kuramoto, Masashi Osuga, Takashi Shibata, Satoshi Ogata, Hironobu Nishihara, Hiroshi Kawabata
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Patent number: 8051631Abstract: A rear discharge mower comprising: a first shaft; a first blade that is rotated in unison with the first shaft; a second shaft that is configured to be rotated in a direction opposite from a rotational direction of the first shaft; a second blade that is rotated in unison with the second shaft, wherein a grass-clippings discharge path is formed through which grass clippings are discharged in a rearward direction from the area between the first shaft and second shaft; an enclosing casing that supports the blade shafts; and a power train that is accommodated in the enclosing casing and that transmits power to the first and second blade shafts.Type: GrantFiled: March 19, 2008Date of Patent: November 8, 2011Assignee: Kubota CorporationInventors: Kenji Nishihara, Takashi Kuramoto, Masashi Osuga, Takashi Shibata, Satoshi Ogata, Hironobu Nishihara, Hiroshi Kawabata
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Patent number: 7730706Abstract: A lawn mower, comprising a vehicle body that is supported by a plurality of wheels; a support frame that is connected to a rear part of the vehicle body; a grass collector that is supported on the support frame so as to be pivoted between a grass collecting position and a discharge position about an axis oriented in the transverse direction of the vehicle body, the grass collector having a bottom surface; a swiveling body that is connected to a rotating shaft of the grass collector to be rotated in unison so as to switch the grass collector between the grass collecting position and the discharge position; and a cylinder connected to the swiveling body and to the support frame; wherein the swiveling body and the cylinder are disposed below the grass collector in the grass collecting position, and the cylinder extends along the bottom surface of the grass collector.Type: GrantFiled: March 19, 2008Date of Patent: June 8, 2010Assignee: Kubota CorporationInventors: Satoshi Ogata, Masashi Osuga, Takashi Shibata, Takashi Kuramoto, Hironobu Nishihara
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Publication number: 20090308038Abstract: A rear discharge mower comprising: a first shaft; a first blade that is rotated in unison with the first shaft; a second shaft that is configured to be rotated in a direction opposite from a rotational direction of the first shaft; a second blade that is rotated in unison with the second shaft, wherein a grass-clippings discharge path is formed through which grass clippings are discharged in a rearward direction from the area between the first shaft and second shaft; an enclosing casing that supports the blade shafts; and a power train that is accommodated in the enclosing casing and that transmits power to the first and second blade shafts.Type: ApplicationFiled: August 20, 2009Publication date: December 17, 2009Applicant: KUBOTA CORPORATIONInventors: Kenji Nishihara, Takashi Kuramoto, Masashi Osuga, Takashi Shibata, Satoshi Ogata, Hironobu Nishihara, Hiroshi Kawabata
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Publication number: 20090266639Abstract: An operating system for a tractor to which an implement is attachable, the operating system comprises: a steering wheel provided rearwardly of a hood that houses an engine located in a forward region of the tractor; a control panel provided rearwardly of the hood and adjacent the steering wheel; a center cover extending generally vertically below the steering wheel; an operation lever provided at a position laterally of the control panel; a valve unit with a pair of spools, the valve unit being located at a lower position with respect to the steering wheel and being covered by the center cover; a link mechanism that links the operation lever and the pair of spools, the link mechanism being covered by the center cover.Type: ApplicationFiled: July 6, 2009Publication date: October 29, 2009Applicant: KUBOTA CORPORATIONInventors: Takashi Kuramoto, Masashi Osuga, Hiroshi Shimada, Yoshio Tomiyama, Takeshi Komorida, Hironobu Nishihara, Kenji Nishihara, Takashi Shibata
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Publication number: 20090241702Abstract: A work vehicle including: a body frame; an engine supported by the body frame through an elastic body; a belt transmission mechanism connected to an output shaft of the engine in a power transmissive manner; and a power takeoff (PTO) mechanism connected to the belt transmission mechanism in a power transmissive manner to take out power from the engine. A PTO support bracket configured to support the PTO mechanism is attached to the engine.Type: ApplicationFiled: March 5, 2009Publication date: October 1, 2009Applicant: Kubota CorporationInventors: Masashi Osuga, Shoko Koda, Hironobu Nishihara, Takashi Kuramoto, Satoshi Ogata, Hiroshi Kawabata
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Patent number: 7558658Abstract: An operating system for a tractor to which an implement is attachable, the operating system comprises: a steering wheel provided rearwardly of a hood that houses an engine located in a forward region of the tractor; a control panel provided rearwardly of the hood and adjacent the steering wheel; a center cover extending generally vertically below the steering wheel; an operation lever provided at a position laterally of the control panel; a valve unit with a pair of spools, the valve unit being located at a lower position with respect to the steering wheel and being covered by the center cover; a link mechanism that links the operation lever and the pair of spools, the link mechanism being covered by the center cover.Type: GrantFiled: March 14, 2006Date of Patent: July 7, 2009Assignee: Kubota CorporationInventors: Takashi Kuramoto, Masashi Osuga, Hiroshi Shimada, Yoshio Tomiyama, Takeshi Komorida, Hironobu Nishihara, Kenji Nishihara, Takashi Shibata
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Publication number: 20080276588Abstract: A rear discharge mower comprising: a first shaft; a first blade that is rotated in unison with the first shaft; a second shaft that is configured to be rotated in a direction opposite from a rotational direction of the first shaft; a second blade that is rotated in unison with the second shaft, wherein a grass-clippings discharge path is formed through which grass clippings are discharged in a rearward direction from the area between the first shaft and second shaft; an enclosing casing that supports the blade shafts; and a power train that is accommodated in the enclosing casing and that transmits power to the first and second blade shafts.Type: ApplicationFiled: March 19, 2008Publication date: November 13, 2008Applicant: Kubota CorporationInventors: Kenji Nishihara, Takashi Kuramoto, Masashi Osuga, Takashi Shibata, Satoshi Ogata, Hironobu Nishihara, Hiroshi Kawabata
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Publication number: 20080276589Abstract: A lawn mower, comprising a vehicle body that is supported by a plurality of wheels; a support frame that is connected to a rear part of the vehicle body; a grass collector that is supported on the support frame so as to be pivoted between a grass collecting position and a discharge position about an axis oriented in the transverse direction of the vehicle body, the grass collector having a bottom surface; a swiveling body that is connected to a rotating shaft of the grass collector to be rotated in unison so as to switch the grass collector between the grass collecting position and the discharge position; and a cylinder connected to the swiveling body and to the support frame; wherein the swiveling body and the cylinder are disposed below the grass collector in the grass collecting position, and the cylinder extends along the bottom surface of the grass collector.Type: ApplicationFiled: March 19, 2008Publication date: November 13, 2008Applicant: Kubota CorporationInventors: Satoshi Ogata, Masashi Osuga, Takashi Shibata, Takashi Kuramoto, Hironobu Nishihara
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Patent number: 7337866Abstract: A work vehicle includes an engine, a PTO shaft driven by power from the engine, an operator's seat, an operator's presence sensor for detecting presence/absence of an operator at the operator's seat, and an automatic engine stop unit operable to automatically stop the engine in response to detection of the operator's absence at the operator's seat. The work vehicle includes a utility member for the vehicle selectively movable between a use position and a non-use position, a non-use state detecting sensor for detecting movement of the utility member to the non-use position, and an override unit operable to override the automatic engine stop function of the automatic engine stop unit, the override unit providing an override signal to the automatic engine stop unit in response to detection by the non-use state detecting sensor of the movement of the utility member to the non-use position.Type: GrantFiled: January 4, 2006Date of Patent: March 4, 2008Assignee: Kubota CorporationInventors: Keishiro Nishi, Masao Takagi, Satoshi Machida, Kenji Kato, Masashi Osuga
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Patent number: 7273341Abstract: A tractor has a vehicle frame with a pair of right and left elongate frame members spaced from each other and extending in a longitudinal direction and interconnected in intermediate positions by a cross member, an engine supported by the elongate frame members in a front region of the vehicle frame, a rear axle unit connected to rear axle connecting members fixed to the elongate frame members in a rear region of the vehicle frame, and a drive transmitting mechanism for transmitting drive from the engine to the rear axle unit. A front loader and/or a backhoe are/is attachable to a front and a rear of the tractor as supported by the vehicle frame. A reinforcing frame unit is provided for reinforcing the vehicle frame. The reinforcing frame unit is connected to the vehicle frame by reinforcing frame connecting members spaced horizontally and/or vertically from the rear axle connecting members.Type: GrantFiled: February 19, 2004Date of Patent: September 25, 2007Assignee: Kubota CorporationInventors: Takashi Yoshii, Masashi Osuga, Hiroshi Shimada
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Patent number: 7222485Abstract: A hydrostatic continuously variable transmission comprises: a hydraulic pump; a power input shaft engaged with the hydraulic pump to transmit power from a power source to the hydraulic pump; a hydraulic motor in hydraulic communication with the hydraulic pump; a casing that houses the hydraulic pump and the hydraulic motor; a port block mounted to the casing, the port block having a block main body and a cover member connected to a power input side of the block main body, said cover member having an outer surface; a cooling hydraulic path provided in the port block in a region where the block main body and the cover member meet, the cooling hydraulic path being connected to a first hydraulic path in the port block, the cooling hydraulic path having a plurality of bends; a cooling fan provided on the power input shaft to provide air flow directly to the outer surface of the cover member.Type: GrantFiled: March 15, 2006Date of Patent: May 29, 2007Assignee: Kubota CorporationInventors: Takashi Shibata, Yoshio Tomiyama, Takashi Kuramoto, Hiroshi Shimada, Takeshi Komorida, Kenji Nishihara, Masashi Osuga
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Patent number: 7172040Abstract: A work vehicle comprises: a plurality of wheels; a vehicle body supported by the wheels; a transmission case provided on the vehicle body, the transmission case having a first case portion and a second case portion and a middle portion extending between respective lower portions of the first and second case portions, the transmission case being divided by an abutting surface extending in a vertical direction of the vehicle; a hydraulic device associated with the transmission case; a hydraulic pump supplying a hydraulic fluid to the hydraulic device; an oil path formed in a surface of the abutting surface, one end of the oil path being formed in the first case portion as an oil port for the hydraulic device, and the other end of the oil path opening to the second case portion; and a hydraulic fluid outlet provided to the first case and connected to the hydraulic pump to supply hydraulic fluid to the hydraulic pump.Type: GrantFiled: March 1, 2005Date of Patent: February 6, 2007Assignee: Kubota CorporationInventors: Hiroshi Oshima, Katsuhiko Uemura, Tomoyuki Morikawa, Hiroshi Shimada, Masashi Osuga
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Publication number: 20060283183Abstract: A hydrostatic continuously variable transmission comprises: a hydraulic pump; a power input shaft engaged with the hydraulic pump to transmit power from a power source to the hydraulic pump; a hydraulic motor in hydraulic communication with the hydraulic pump; a casing that houses the hydraulic pump and the hydraulic motor; a port block mounted to the casing, the port block having a block main body and a cover member connected to a power input side of the block main body, said cover member having an outer surface; a cooling hydraulic path provided in the port block in a region where the block main body and the cover member meet, the cooling hydraulic path being connected to a first hydraulic path in the port block, the cooling hydraulic path having a plurality of bends; a cooling fan provided on the power input shaft to provide air flow directly to the outer surface of the cover member.Type: ApplicationFiled: March 15, 2006Publication date: December 21, 2006Applicant: Kubota CorporationInventors: Takashi Shibata, Yoshio Tomiyama, Takashi Kuramoto, Hiroshi Shimada, Takeshi Komorida, Kenji Nishihara, Masashi Osuga
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Publication number: 20060243505Abstract: An operating system for a tractor to which an implement is attachable, the operating system comprises: a steering wheel provided rearwardly of a hood that houses an engine located in a forward region of the tractor; a control panel provided rearwardly of the hood and adjacent the steering wheel; a center cover extending generally vertically below the steering wheel; an operation lever provided at a position laterally of the control panel; a valve unit with a pair of spools, the valve unit being located at a lower position with respect to the steering wheel and being covered by the center cover; a link mechanism that links the operation lever and the pair of spools, the link mechanism being covered by the center cover.Type: ApplicationFiled: March 14, 2006Publication date: November 2, 2006Applicant: Kubota CorporationInventors: Takashi Kuramoto, Masashi Osuga, Hiroshi Shimada, Yoshio Tomiyama, Takeshi Komorida, Hironobu Nishihara, Kenji Nishihara, Takashi Shibata
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Publication number: 20060113139Abstract: A work vehicle includes an engine, a PTO shaft driven by power from the engine, an operator's seat, an operator's presence sensor for detecting presence/absence of an operator at the operator's seat, and an automatic engine stop unit operable to automatically stop the engine in response to detection of the operator's absence at the operator's seat. The work vehicle includes a utility member for the vehicle selectively movable between a use position and a non-use position, a non-use state detecting sensor for detecting movement of the utility member to the non-use position, and an override unit operable to override the automatic engine stop function of the automatic engine stop unit, the override unit providing an override signal to the automatic engine stop unit in response to detection by the non-use state detecting sensor of the movement of the utility member to the non-use position.Type: ApplicationFiled: January 4, 2006Publication date: June 1, 2006Inventors: Keishiro Nishi, Masao Takagi, Satoshi Machida, Kenji Kato, Masashi Osuga