Patents by Inventor Masaki Takaoka
Masaki Takaoka 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: 11937535Abstract: Provided are blades 22R, 22C, 22L rotatably driven about rotational axes XL, XC, XR to be able to cut grass on the ground surface, a housing covering the blades 22R, 22C, 22L and having a lower face thereof opened, a water feeding section provided outside the housing, a water discharging section 54 provided inside the housing for discharging cleaning water fed to the water feeding section, and a water feeding pipe 55 connected to/between the water feeding section and the water discharging section 54. The water discharging section 54 discharges water toward an inner wall face of the housing.Type: GrantFiled: June 15, 2021Date of Patent: March 26, 2024Assignee: Kubota CorporationInventors: Masaki Takaoka, Junki Nakao, Akihito Mihara, Yusaku Matsuoka, Yuki Hirotsu
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Publication number: 20220192086Abstract: Provided are blades 22R, 22C, 22L rotatably driven about rotational axes XL, XC, XR to be able to cut grass on the ground surface, a housing covering the blades 22R, 22C, 22L and having a lower face thereof opened, a water feeding section provided outside the housing, a water discharging section 54 provided inside the housing for discharging cleaning water fed to the water feeding section, and a water feeding pipe 55 connected to/between the water feeding section and the water discharging section 54. The water discharging section 54 discharges water toward an inner wall face of the housing.Type: ApplicationFiled: June 15, 2021Publication date: June 23, 2022Inventors: Masaki Takaoka, Junki Nakao, Akihito Mihara, Yusaku Matsuoka, Yuki Hirotsu
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Patent number: 11219160Abstract: A riding mower includes front wheels and rear wheels that support a vehicle body frame on the ground surface, a driver's seat disposed upwardly of the vehicle body frame, a mower deck disposed downwardly of the vehicle body frame and a cutting guide device configured to create an overlap mark that hints a cutting overlap line at a position forwardly of the front wheels and the mower deck and closer to the ground surface than the vehicle body frame.Type: GrantFiled: December 18, 2018Date of Patent: January 11, 2022Assignee: KUBOTA CORPORATIONInventor: Masaki Takaoka
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Patent number: 10933920Abstract: A work vehicle including: a vehicle body frame; a prime mover part located on a front or rear part of the vehicle body frame; a bonnet configured to open and close by swinging, and covering the prime mover part; and an assist unit configured to assist the bonnet to operate to open. A lateral end portion of the vehicle body frame is provided with a first linkage part with which the assist unit is linked. A lateral end portion of a lower end part of the bonnet, which is located closer to an end cover than the first linkage part is, is provided with a second linkage part with which the assist unit is linked. The assist unit is provided with an expansion/contraction mechanism biased so as to expand, and is located laterally outside the prime mover part and spans the first linkage part and the second linkage part.Type: GrantFiled: May 29, 2019Date of Patent: March 2, 2021Assignee: Kubota CorporationInventors: Takeshi Komorida, Koichiro Matsumoto, Masaki Takaoka, Arisa Kimura, Tasuku Teraoka, Azusa Furihata, Tomohisa Yamamoto, Toshiki Kanai, Nobuyuki Yamashita, Masayuki Akita, Takashi Kumashiro, Ryo Matsumoto, Hiroki Nagai, Tatsuki Kago, Akihito Mihara
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Publication number: 20200187417Abstract: A riding mower includes front wheels and rear wheels that support a vehicle body frame on the ground surface, a driver's seat disposed upwardly of the vehicle body frame, a mower deck disposed downwardly of the vehicle body frame and a cutting guide device configured to create an overlap mark that hints a cutting overlap line at a position forwardly of the front wheels and the mower deck and closer to the ground surface than the vehicle body frame.Type: ApplicationFiled: December 18, 2018Publication date: June 18, 2020Applicant: KUBOTA CORPORATIONInventor: Masaki TAKAOKA
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Publication number: 20190276090Abstract: A work vehicle including: a vehicle body frame; a prime mover part located on a front or rear part of the vehicle body frame; a bonnet configured to open and close by swinging, and covering the prime mover part; and an assist unit configured to assist the bonnet to operate to open. A lateral end portion of the vehicle body frame is provided with a first linkage part with which the assist unit is linked. A lateral end portion of a lower end part of the bonnet, which is located closer to an end cover than the first linkage part is, is provided with a second linkage part with which the assist unit is linked. The assist unit is provided with an expansion/contraction mechanism biased so as to expand, and is located laterally outside the prime mover part and spans the first linkage part and the second linkage part.Type: ApplicationFiled: May 29, 2019Publication date: September 12, 2019Inventors: Takeshi Komorida, Koichiro Matsumoto, Masaki Takaoka, Arisa Kimura, Tasuku Teraoka, Azusa Furihata, Tomohisa Yamamoto, Toshiki Kanai, Nobuyuki Yamashita, Masayuki Akita, Takashi Kumashiro, Ryo Matsumoto, Hiroki Nagai, Tatsuki Kago, Akihito Mihara
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Patent number: 10377219Abstract: A tractor includes an engine that is mounted on a vehicle body frame, a hood that houses the engine and is configured to pivot about a front pivot in a top-bottom direction between a closed position at which the hood covers the engine, and an open position at which the hood exposes the engine, a mounting rubber that is provided between the engine and the vehicle body frame to support the engine in an anti-vibration manner, and a hood stay that supports the hood such that the hood is pivotable up/down about the front pivot. The hood stay includes an abutting-target portion against which the engine can abut from a rear side, to prevent the engine from swinging forward in a front-rear direction of the vehicle body.Type: GrantFiled: May 26, 2017Date of Patent: August 13, 2019Assignee: Kubota CorporationInventors: Tasuku Teraoka, Takeshi Komorida, Takashi Kumashiro, Shoichiro Nagaishi, Tomohisa Yamamoto, Akihito Mihara, Ryo Matsumoto, Hiroki Nagai, Yuto Akai, Yoshihisa Tonoya, Masaki Takaoka, Tatsuki Kago, Nobuyuki Yamashita, Junichi Yamanaka, Masahiro Izumi, Azusa Furihata, Koichiro Matsumoto, Takashi Shibata
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Patent number: 10336377Abstract: A work vehicle including: a vehicle body frame; a prime mover part located on a front or rear part of the vehicle body frame; a bonnet configured to open and close by swinging, and covering the prime mover part; and an assist unit configured to assist the bonnet to operate to open. A lateral end portion of the vehicle body frame is provided with a first linkage part with which the assist unit is linked. A lateral end portion of a lower end part of the bonnet, which is located closer to an end cover than the first linkage part is, is provided with a second linkage part with which the assist unit is linked. The assist unit is provided with an expansion/contraction mechanism biased so as to expand, and is located laterally outside the prime mover part and spans the first linkage part and the second linkage part.Type: GrantFiled: November 8, 2016Date of Patent: July 2, 2019Assignee: Kubota CorporationInventors: Takeshi Komorida, Koichiro Matsumoto, Masaki Takaoka, Arisa Kimura, Tasuku Teraoka, Azusa Furihata, Tomohisa Yamamoto, Toshiki Kanai, Nobuyuki Yamashita, Masayuki Akita, Takashi Kumashiro, Ryo Matsumoto, Hiroki Nagai, Tatsuki Kago, Akihito Mihara
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Patent number: 10029731Abstract: A work vehicle includes a prime mover unit disposed in a front part of the vehicle body, a driving part located in a rear part of the vehicle body, a battery disposed between the prime mover unit and the driving part, a base frame disposed in a lower part of the vehicle body and a center pillar that extends upward from the base frame. The prime mover unit includes a radiator disposed immediately forward of the center pillar.Type: GrantFiled: December 5, 2016Date of Patent: July 24, 2018Assignee: Kubota CorporationInventors: Koichiro Matsumoto, Shoichiro Nagaishi, Ryo Matsumoto, Hiroshi Kawabata, Hiroki Nagai, Masahiro Izumi, Masaki Takaoka, Tasuku Teraoka, Takashi Kumashiro
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Patent number: 9976524Abstract: A work vehicle is provided with fuel supply lines that include a first fuel supply line that connects a first fuel tank and a junction. A second fuel supply line connects a second fuel tank and the junction. A common supply line connects the junction and a diesel engine. A fuel pump is provided on the common supply line. A first check valve is installed on the first fuel supply line and opens in accordance with a pressure differential between a pressure in the first fuel tank and a pressure in the junction. A second check valve is installed on the second fuel supply line and opens in accordance with a pressure differential between a pressure in the second fuel tank and a pressure in the junction. A fuel return line returns excess fuel from the diesel engine to the first fuel tank and the second fuel tank.Type: GrantFiled: March 17, 2015Date of Patent: May 22, 2018Assignee: KUBOTA CORPORATIONInventors: Masaki Takaoka, Seiya Yoshida, Junki Nakao, Hideki Aoki, Osami Fujiwara, Hiroyuki Tada
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Publication number: 20180056772Abstract: A tractor includes an engine that is mounted on a vehicle body frame, a hood that houses the engine and is configured to pivot about a front pivot in a top-bottom direction between a closed position at which the hood covers the engine, and an open position at which the hood exposes the engine, a mounting rubber that is provided between the engine and the vehicle body frame to support the engine in an anti-vibration manner, and a hood stay that supports the hood such that the hood is pivotable up/down about the front pivot. The hood stay includes an abutting-target portion against which the engine can abut from a rear side, to prevent the engine from swinging forward in a front-rear direction of the vehicle body.Type: ApplicationFiled: May 26, 2017Publication date: March 1, 2018Inventors: Tasuku Teraoka, Takeshi Komorida, Takashi Kumashiro, Shoichiro Nagaishi, Tomohisa Yamamoto, Akihito Mihara, Ryo Matsumoto, Hiroki Nagai, Yuto Akai, Yoshihisa Tonoya, Masaki Takaoka, Tatsuki Kago, Nobuyuki Yamashita, Junichi Yamanaka, Masahiro Izumi, Azusa Furihata, Koichiro Matsumoto, Takashi Shibata
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Patent number: 9849854Abstract: A work vehicle includes a vehicle body frame, a protection frame extending upwards from the vehicle body frame, the protection frame including left and right strut members and an arch member extending between and detachable from the left and right strut members, a support frame provided in the vehicle body frame and configured to support the protection frame to the vehicle body frame, the support frame including a pair of left and right pipe-like supporting portions, each supporting portion being provided under a laterally outward tilted orientation with an upper portion of the supporting member being positioned on more laterally outer side of a vehicle body and being configured to removably support the strut member, and a connection tool configured to non-removably connect the left and right strut members to the left and right supporting portions.Type: GrantFiled: November 21, 2016Date of Patent: December 26, 2017Assignee: Kubota CorporationInventors: Toshiki Kanai, Takeshi Komorida, Masahiro Izumi, Masaki Takaoka, Koichiro Matsumoto, Azusa Furihata
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Publication number: 20170166154Abstract: A work vehicle includes a vehicle body frame, a protection frame extending upwards from the vehicle body frame, the protection frame including left and right strut members and an arch member extending between and detachable from the left and right strut members, a support frame provided in the vehicle body frame and configured to support the protection frame to the vehicle body frame, the support frame including a pair of left and right pipe-like supporting portions, each supporting portion being provided under a laterally outward tilted orientation with an upper portion of the supporting member being positioned on more laterally outer side of a vehicle body and being configured to removably support the strut member, and a connection tool configured to non-removably connect the left and right strut members to the left and right supporting portions.Type: ApplicationFiled: November 21, 2016Publication date: June 15, 2017Inventors: Toshiki Kanai, Takeshi Komorida, Masahiro Izumi, Masaki Takaoka, Koichiro Matsumoto, Azusa Furihata
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Publication number: 20170158242Abstract: A work vehicle includes a prime mover unit disposed in a front part of the vehicle body, a driving part located in a rear part of the vehicle body, a battery disposed between the prime mover unit and the driving part, a base frame disposed in a lower part of the vehicle body and a center pillar that extends upward from the base frame. The prime mover unit includes a radiator disposed immediately forward of the center pillar. The driving part includes a steering wheel disposed above the battery.Type: ApplicationFiled: December 5, 2016Publication date: June 8, 2017Inventors: Koichiro Matsumoto, Shoichiro Nagaishi, Ryo Matsumoto, Hiroshi Kawabata, Hiroki Nagai, Masahiro Izumi, Masaki Takaoka, Tasuku Teraoka, Takashi Kumashiro
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Publication number: 20170129544Abstract: A work vehicle including: a vehicle body frame; a prime mover part located on a front or rear part of the vehicle body frame; a bonnet configured to open and close by swinging, and covering the prime mover part; and an assist unit configured to assist the bonnet to operate to open. A lateral end portion of the vehicle body frame is provided with a first linkage part with which the assist unit is linked. A lateral end portion of a lower end part of the bonnet, which is located closer to an end cover than the first linkage part is, is provided with a second linkage part with which the assist unit is linked. The assist unit is provided with an expansion/contraction mechanism biased so as to expand, and is located laterally outside the prime mover part and spans the first linkage part and the second linkage part.Type: ApplicationFiled: November 8, 2016Publication date: May 11, 2017Inventors: Takeshi Komorida, Koichiro Matsumoto, Masaki Takaoka, Arisa Kimura, Tasuku Teraoka, Azusa Furihata, Tomohisa Yamamoto, Toshiki Kanai, Nobuyuki Yamashita, Masayuki Akita, Takashi Kumashiro, Ryo Matsumoto, Hiroki Nagai, Tatsuki Kago, Akihito Mihara
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Patent number: 9572298Abstract: A mower includes: a left panel positioned on a left side of a driver's seat. The driver's seat is positioned rearward of a mower unit. A display unit is arranged in an area of the left panel. A line linking a left front corner area of the mower unit and a top center portion of a seat back of the driver's seat passes through the display unit. The display unit is arranged so that a screen of the display unit faces the top center portion of the seat back.Type: GrantFiled: August 31, 2015Date of Patent: February 21, 2017Assignee: KUBOTA CORPORATIONInventors: Masaki Takaoka, Masato Asahara
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Patent number: 9516808Abstract: The grass mower includes a front wheel unit having a left front wheel and a right front wheel which are mounted to a vehicle body frame, a rear wheel unit having a left rear wheel and a right rear wheel which are mounted to the vehicle body frame and a mower unit disposed between the front wheel unit and the rear wheel unit downwardly of the vehicle body frame, the mower unit including a rotary blade unit that has at least a left blade and a right blade which are disposed side by side in a vehicle body left/right direction. The rotary blade unit is configured such that a tread-on track of the left front wheel is overlapped with a rotation locus portion of the left blade from the front side to the rear side thereof and a tread-on track of the right front wheel is overlapped with a rotation locus portion of the right blade from the front side to the rear side thereof.Type: GrantFiled: August 27, 2015Date of Patent: December 13, 2016Assignee: Kubota CorporationInventors: Masaki Takaoka, Masato Asahara, Motosumi Shiotsuki, Hideki Aoki, Kazuaki Nogami, Akira Minoura
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Publication number: 20160192585Abstract: The grass mower includes a front wheel unit having a left front wheel and a right front wheel which are mounted to a vehicle body frame, a rear wheel unit having a left rear wheel and a right rear wheel which are mounted to the vehicle body frame and a mower unit disposed between the front wheel unit and the rear wheel unit downwardly of the vehicle body frame, the mower unit including a rotary blade unit that has at least a left blade and a right blade which are disposed side by side in a vehicle body left/right direction. The rotary blade unit is configured such that a tread-on track of the left front wheel is overlapped with a rotation locus portion of the left blade from the front side to the rear side thereof and a tread-on track of the right front wheel is overlapped with a rotation locus portion of the right blade from the front side to the rear side thereof.Type: ApplicationFiled: August 27, 2015Publication date: July 7, 2016Inventors: Masaki Takaoka, Masato Asahara, Motosumi Shiotsuki, Hideki Aoki, Kazuaki Nogami, Akira Minoura
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Publication number: 20160193970Abstract: A mower includes: a left panel positioned on a left side of a driver's seat. The driver's seat is positioned rearward of a mower unit. A display unit is arranged in an area of the left panel. A line linking a left front corner area of the mower unit and a top center portion of a seat back of the driver's seat passes through the display unit. The display unit is arranged so that a screen of the display unit faces the top center portion of the seat back.Type: ApplicationFiled: August 31, 2015Publication date: July 7, 2016Applicant: KUBOTA CORPORATIONInventors: Masaki TAKAOKA, Masato ASAHARA
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Publication number: 20160069309Abstract: A work vehicle is provided with fuel supply lines that include a first fuel supply line that connects a first fuel tank and a junction. A second fuel supply line connects a second fuel tank and the junction. A common supply line connects the junction and a diesel engine. A fuel pump is provided on the common supply line. A first check valve is installed on the first fuel supply line and opens in accordance with a pressure differential between a pressure in the first fuel tank and a pressure in the junction. A second check valve is installed on the second fuel supply line and opens in accordance with a pressure differential between a pressure in the second fuel tank and a pressure in the junction. A fuel return line returns excess fuel from the diesel engine to the first fuel tank and the second fuel tank.Type: ApplicationFiled: March 17, 2015Publication date: March 10, 2016Applicant: KUBOTA CORPORATIONInventors: Masaki TAKAOKA, Seiya YOSHIDA, Junki NAKAO, Hideki AOKI, Osami FUJIWARA, Hiroyuki TADA