Patents by Inventor Masaru Nakaji
Masaru Nakaji 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: 11230256Abstract: A seatbelt of a work vehicle includes: a first stay provided in correspondence with a first fixing portion of a vehicle body on either one of right/left sides of a seat; a belt reeling portion that reels and stores a belt main body and is attached to the first fixing portion via the first stay; a second stay provided in correspondence with a second fixing portion on the other one of the right/left sides of the seat; and a buckle portion that fixes an insertion fixture extending from the belt reeling portion and is attached to the second fixing portion via the second stay. A first cover member is mounted to the first stay and covers an outward exposed portion of the first stay. A second cover member is mounted to the second stay and covers an outward exposed portion of the second stay.Type: GrantFiled: May 28, 2020Date of Patent: January 25, 2022Assignee: Kubota CorporationInventors: Masaru Nakaji, Hiromi Takahashi
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Patent number: 11203253Abstract: In a work vehicle, a windshield provided at a front portion of a vehicle body includes an upper shield disposed upwardly of a hood and a lower shield that can be disposed at a position closing a gap formed between a lower end of the upper shield and an upper face of the hood. There is provided a support unit configured to support the lower shield vertically movably to be capable of selectively disposing the lower shield at the closing position for closing the gap and an opening position for opening the gap.Type: GrantFiled: May 13, 2020Date of Patent: December 21, 2021Assignee: Kubota CorporationInventor: Masaru Nakaji
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Patent number: 11161543Abstract: A work vehicle includes a bypass passage formed in an operational valve of a dump cylinder and configured to feed pressure oil from a hydraulic pump to a power steering device when the operational valve is under a neutral state and an oil feeding passage equipped with an orifice, the orifice-equipped oil feeding passage being configured to feed the pressure oil from the hydraulic pump to a rod side oil chamber of the dump cylinder when the operational valve is under the neutral state.Type: GrantFiled: November 25, 2019Date of Patent: November 2, 2021Assignee: Kubota CorporationInventors: Masaru Nakaji, Takeshi Tsuchiya
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Publication number: 20210078389Abstract: In a work vehicle, a windshield provided at a front portion of a vehicle body includes an upper shield disposed upwardly of a hood and a lower shield that can be disposed at a position closing a gap formed between a lower end of the upper shield and an upper face of the hood. There is provided a support unit configured to support the lower shield vertically movably to be capable of selectively disposing the lower shield at the closing position for closing the gap and an opening position for opening the gap.Type: ApplicationFiled: May 13, 2020Publication date: March 18, 2021Inventor: Masaru Nakaji
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Publication number: 20200290556Abstract: A seatbelt of a work vehicle includes: a first stay provided in correspondence with a first fixing portion of a vehicle body on either one of right/left sides of a seat; a belt reeling portion that reels and stores a belt main body and is attached to the first fixing portion via the first stay; a second stay provided in correspondence with a second fixing portion on the other one of the right/left sides of the seat; and a buckle portion that fixes an insertion fixture extending from the belt reeling portion and is attached to the second fixing portion via the second stay. A first cover member is mounted to the first stay and covers an outward exposed portion of the first stay. A second cover member is mounted to the second stay and covers an outward exposed portion of the second stay.Type: ApplicationFiled: May 28, 2020Publication date: September 17, 2020Inventors: Masaru Nakaji, Hiromi Takahashi
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Publication number: 20200247467Abstract: A work vehicle includes a bypass passage formed in an operational valve of a dump cylinder and configured to feed pressure oil from a hydraulic pump to a power steering device when the operational valve is under a neutral state and an oil feeding passage equipped with an orifice, the orifice-equipped oil feeding passage being configured to feed the pressure oil from the hydraulic pump to a rod side oil chamber of the dump cylinder when the operational valve is under the neutral state.Type: ApplicationFiled: November 25, 2019Publication date: August 6, 2020Inventors: Masaru Nakaji, Takeshi Tsuchiya
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Patent number: 10710546Abstract: A seatbelt of a work vehicle includes: a first stay provided in correspondence with a first fixing portion of a vehicle body on either one of right/left sides of a seat; a belt reeling portion that reels and stores a belt main body and is attached to the first fixing portion via the first stay; a second stay provided in correspondence with a second fixing portion on the other one of the right/left sides of the seat; and a buckle portion that fixes an insertion fixture extending from the belt reeling portion and is attached to the second fixing portion via the second stay. A first cover member is mounted to the first stay and covers an outward exposed portion of the first stay. A second cover member is mounted to the second stay and covers an outward exposed portion of the second stay.Type: GrantFiled: June 13, 2018Date of Patent: July 14, 2020Assignee: Kubota CorporationInventors: Masaru Nakaji, Hiromi Takahashi
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Patent number: 10538272Abstract: 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: GrantFiled: December 11, 2017Date of Patent: January 21, 2020Assignee: Kubota CorporationInventors: Koji Nada, Hiroki Bessho, Sechan Park, Masaru Nakaji
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Publication number: 20190092274Abstract: A seatbelt of a work vehicle includes: a first stay provided in correspondence with a first fixing portion of a vehicle body on either one of right/left sides of a seat; a belt reeling portion that reels and stores a belt main body and is attached to the first fixing portion via the first stay; a second stay provided in correspondence with a second fixing portion on the other one of the right/left sides of the seat; and a buckle portion that fixes an insertion fixture extending from the belt reeling portion and is attached to the second fixing portion via the second stay. A first cover member is mounted to the first stay and covers an outward exposed portion of the first stay. A second cover member is mounted to the second stay and covers an outward exposed portion of the second stay.Type: ApplicationFiled: June 13, 2018Publication date: March 28, 2019Inventors: Masaru Nakaji, Hiromi Takahashi
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Patent number: 10107174Abstract: A work vehicle includes an engine, a cooling fan for feeding cooling air to the engine, a fan cover for covering the cooling fan, and a shutter device provided at an ambient air inlet of the fan cover and openable and closable.Type: GrantFiled: November 18, 2016Date of Patent: October 23, 2018Assignee: Kubota CorporationInventors: Masaru Nakaji, Toshiki Ono
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Publication number: 20180297641Abstract: 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: ApplicationFiled: December 11, 2017Publication date: October 18, 2018Inventors: Koji Nada, Hiroki Bessho, Sechan Park, Masaru Nakaji
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Patent number: 9868350Abstract: Provided is a working vehicle which includes: an engine disposed on a rear portion of a vehicle body; a gear-type transmission and an HST which are disposed on the rear portion of the vehicle body; a load-carrying platform disposed above at least one of the engine, the gear-type transmission and the HST; a driving operation part disposed in front of the load-carrying platform and allowing an operator to ride thereon; a PTO shaft mounted on a front portion of the vehicle body and being capable of taking out power to the outside of the working vehicle; and a mechanical power transmission mechanism for transmitting the power from the engine which is before the power is transmitted with a speed change by the gear-type transmission and the HST to the PTO shaft by extending below the driving operation part.Type: GrantFiled: September 11, 2014Date of Patent: January 16, 2018Assignee: KUBOTA CORPORATIONInventors: Masatake Murakawa, Masaru Nakaji, Tatsuya Nose, Takashi Fujii
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Publication number: 20170159544Abstract: A work vehicle includes an engine, a cooling fan for feeding cooling air to the engine, a fan cover for covering the cooling fan, and a shutter device provided at an ambient air inlet of the fan cover and openable and closable.Type: ApplicationFiled: November 18, 2016Publication date: June 8, 2017Inventors: Masaru Nakaji, Toshiki Ono
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Patent number: 9216777Abstract: A work vehicle includes a vehicle body, a seat section and a load-carrying platform disposed rearwardly of the seat section. A storage space is disposed rearwardly of the seat section and downwardly of the load-carrying platform, the storage space extending in a lateral width direction of the vehicle body, and the storage space opening toward a lateral side of the vehicle body.Type: GrantFiled: September 16, 2013Date of Patent: December 22, 2015Assignee: Kubota CorporationInventors: Norimi Nakamura, Teruo Shimamura, Taro Nakamura, Masaru Nakaji, Mitsugu Kobayashi, Ryouzou Imanishi, Yoshimi Hirooka, Koji Fujiwara
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Publication number: 20150210163Abstract: Provided is a working vehicle which includes: an engine disposed on a rear portion of a vehicle body; a gear-type transmission and an HST which are disposed on the rear portion of the vehicle body; a load-carrying platform disposed above at least one of the engine, the gear-type transmission and the HST; a driving operation part disposed in front of the load-carrying platform and allowing an operator to ride thereon; a PTO shaft mounted on a front portion of the vehicle body and being capable of taking out power to the outside of the working vehicle; and a mechanical power transmission mechanism for transmitting the power from the engine which is before the power is transmitted with a speed change by the gear-type transmission and the HST to the PTO shaft by extending below the driving operation part.Type: ApplicationFiled: September 11, 2014Publication date: July 30, 2015Inventors: Masatake MURAKAWA, Masaru NAKAJI, Tatsuya NOSE, Takashi FUJII
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Publication number: 20140034409Abstract: A work vehicle includes a vehicle body, a seat section and a load-carrying platform disposed rearwardly of the seat section. A storage space is disposed rearwardly of the seat section and downwardly of the load-carrying platform, the storage space extending in a lateral width direction of the vehicle body, and the storage space opening toward a lateral side of the vehicle body.Type: ApplicationFiled: September 16, 2013Publication date: February 6, 2014Applicant: Kubota CorporationInventors: Norimi Nakamura, Teruo Shimamura, Taro Nakamura, Masaru Nakaji, Mitsugu Kobayashi, Ryouzou Imanishi, Yoshimi Hirooka, Koji Fujiwara
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Patent number: 8007403Abstract: 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: GrantFiled: September 4, 2008Date of Patent: August 30, 2011Assignee: Kubota CorporationInventors: Yuuki Ishida, Hiroshi Shimada, Koji Nada, Masaru Nakaji, Hiroki Bessho, Masatake Murakawa, Yasunobu Nakatani
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Patent number: 7673920Abstract: 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: GrantFiled: March 21, 2007Date of Patent: March 9, 2010Assignee: Kubota CorporationInventors: Norimi Nakamura, Koji Nada, Shoichiro Kawamura, Masaki Hayashi, Masaru Nakaji, Shinichiro Saji, Takeshi Tsuchiya
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Publication number: 20090239706Abstract: 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: ApplicationFiled: September 4, 2008Publication date: September 24, 2009Applicant: KUBOTA CORPORATIONInventors: Yuuki Ishida, Hiroshi Shimada, Koji Nada, Masaru Nakaji, Hiroki Bessho, Masatake Murakawa, Yasunobu Nakatani
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Publication number: 20080084082Abstract: 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: ApplicationFiled: March 21, 2007Publication date: April 10, 2008Applicant: Kubota CorporationInventors: Norimi Nakamura, Koji Nada, Shoichiro Kawamura, Masaki Hayashi, Masaru Nakaji, Shinichiro Saji, Takeshi Tsuchiya