Patents by Inventor Fumio Minami
Fumio Minami 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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Publication number: 20240151195Abstract: An internal combustion engine capable of reducing an amount of dust taken from an outside air intake opening, with a simple configuration. The internal combustion engine includes a crankshaft, a cooling air intake device that houses a cooling fan coupled to the crankshaft and that includes a cooling air intake port, and an air cleaner device that feeds outside air to an air suction port to a cylinder, and the air cleaner device includes an outside air intake opening that opens toward the cooling air intake port.Type: ApplicationFiled: March 12, 2021Publication date: May 9, 2024Inventors: Wataru Yamazaki, Fumio Minami, Takashi Suzuki, Shogo Sakurai
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Patent number: 11895947Abstract: A mower comprises: a cutter housing having an inner hole in which an output shaft of a motor is inserted; and a motor cover provided above the cutter housing with a space therebetween, the motor cover covering the motor. Cooling air leadout openings for leading cooling air in the motor cover to the outside are formed in the motor cover, the cooling air leadout openings being positioned inward of a peripheral wall part of the motor cover and outward of the inner hole of the cutter housing.Type: GrantFiled: December 22, 2017Date of Patent: February 13, 2024Assignee: HONDA MOTOR CO., LTD.Inventors: Kenta Nishimura, Yasumi Fukuzumi, Yoshihiro Takahashi, Koki Tsuruda, Fumio Minami
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Publication number: 20240000007Abstract: A mower capable of reducing noise generated by rotation of a cutter blade containing an upper cutter blade and a lower cutter blade inside a housing. The lower cutter blade has a wing portion and a wing chamfered portion. The wing portion overhangs upward from a second rear end portion of the lower cutter blade on an opposite side in a rotational direction, at both end portions in a longitudinal direction. The wing chamfered portion is chamfered so that a wing outer end portion of the wing portion is inclined from an upper surface to a lower surface.Type: ApplicationFiled: September 18, 2023Publication date: January 4, 2024Inventors: Mai Kurihara, Shingo Tsuruoka, Fumio Minami, Kouki Tsuruda, Shiho Takashima
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Publication number: 20230246281Abstract: Battery housing structure, includes: housing portion configured to house battery-unit including first-connector; second-connector configured to be connected to first-connector; and fixing tool configured to fix battery-unit to housing portion and including connection prevention portion configured to prevent connection between first-connector and second-connector when located at connection prevention position. Battery-unit includes concave portion facing inner wall of housing portion. Fixing tool is swing lever including projection at one end and connection prevention portion at other end, and configured to swing about shaft provided between one end and other end.Type: ApplicationFiled: January 25, 2023Publication date: August 3, 2023Inventors: Hideshi Sasaki, Fumio Minami, Jun Song
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Publication number: 20230028981Abstract: A station for a lawn mower for charging a storage battery included in the lawn mower that autonomously travels and perform specified work, the station including: a base that stores the lawn mower; and a power supply device that supplies electric power to the storage battery included in the lawn mower when the lawn mower is stored in the base, in which the power supply device or the base includes power supply means for supplying electric power from the power supply device to power receiving means for supplying received electric power to the storage battery included in the lawn mower, and the power supply device is attachable to and detachable from the base.Type: ApplicationFiled: December 25, 2019Publication date: January 26, 2023Inventors: Shuhei Maruyama, Kenta Kawanishi, Fumio Minami, Kouki Tsuruda, Masashi Takeichi
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Patent number: 11533848Abstract: A lawn mower includes a blade, a motor connected to the blade, and a housing storing the blade in the housing and is configured to mow grass underneath the housing. The lawn mower includes a grass container to contain the mowed grass and a connecting member that connects the housing to the grass container. The housing is provided with a ceiling opening communicating with a flow path inside the connecting member. The ceiling opening overlaps with a region corresponding to a rotation range, of the blade, projected upward along a drive shaft.Type: GrantFiled: June 30, 2020Date of Patent: December 27, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Fumio Minami, Takuya Matsumoto, Yoshitaka Oota, Shota Tanabe
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Publication number: 20220369544Abstract: A work machine comprises, a drive source, a working unit that includes a rotary member rotated by the drive source and performs a predetermined work by rotation of the rotary member, and a control unit that controls the drive source so that output of the rotary member partially takes different values in one rotation of the rotary member.Type: ApplicationFiled: July 14, 2022Publication date: November 24, 2022Inventors: Takayuki ENOMOTO, Takeshi YAMAJI, Yuta MIZUNO, Hiroya TAKAHASHI, Fumio MINAMI, Norikazu SHIMIZU
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Patent number: 11399459Abstract: A prime mover of a mower that is a work machine comprises: a motor having a motor rotation shaft extended along a substantially vertical direction, and a motor housing disposed coaxially with the motor rotation shaft; a centrifugal fan disposed above the motor; and a motor cover that accommodates the motor and the centrifugal fan so as to extend to the upper end of a side part of the centrifugal fan. A cooling air inlet is formed in the motor housing, the centrifugal fan having a base part provided above the cooling air inlet, and the outer diameter of the base part being greater than the outer diameter of the cooling air inlet.Type: GrantFiled: December 22, 2017Date of Patent: August 2, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Kenta Nishimura, Yasumi Fukuzumi, Yoshihiro Takahashi, Koki Tsuruda, Fumio Minami
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Patent number: 11388857Abstract: A cutter blade for a lawn mower has an upper blade and a lower blade. The upper blade has an upper blade base and an upper outer end positioned above and further radially outward than the upper blade base. The lower blade has a lower blade base and a mowing section positioned below and further radially outward than the lower blade base. The upper blade base overlaps the lower blade base.Type: GrantFiled: December 26, 2017Date of Patent: July 19, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Mai Kurihara, Fumio Minami, Yuko Nishi, Hiroshi Kobayashi
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Publication number: 20210289697Abstract: A mower capable of reducing noise generated by rotation of a cutter blade is provided. A mower is provided with an upper cutter blade and a lower cutter blade (15) inside a housing. The lower cutter blade has a wing portion (42) and a wing chamfered portion (51). The wing portion overhangs upward from a second rear end portion (47) of the lower cutter blade on an opposite side in a rotational direction, at both end portions (45) in a longitudinal direction. The wing chamfered portion is chamfered so that a wing outer end portion (53) of the wing portion is inclined from an upper surface to a lower surface.Type: ApplicationFiled: March 19, 2021Publication date: September 23, 2021Inventors: Mai Kurihara, Shingo Tsuruoka, Fumio Minami, Kouki Tsuruda, Shiho Takashima
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Publication number: 20210000012Abstract: A lawn mower includes a blade, a motor connected to the blade, and a housing storing the blade in the housing and is configured to mow grass underneath the housing. The lawn mower includes a grass container to contain the mowed grass and a connecting member that connects the housing to the grass container. The housing is provided with a ceiling opening communicating with a flow path inside the connecting member. The ceiling opening overlaps with a region corresponding to a rotation range, of the blade, projected upward along a drive shaft.Type: ApplicationFiled: June 30, 2020Publication date: January 7, 2021Inventors: Fumio Minami, Takuya Matsumoto, Yoshitaka Oota, Shota Tanabe
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Publication number: 20200383266Abstract: A prime mover of a mower that is a work machine comprises: a motor having a motor rotation shaft extended along a substantially vertical direction, and a motor housing disposed coaxially with the motor rotation shaft; a centrifugal fan disposed above the motor; and a motor cover that accommodates the motor and the centrifugal fan so as to extend to the upper end of a side part of the centrifugal fan. A cooling air inlet is formed in the motor housing, the centrifugal fan having a base part provided above the cooling air inlet, and the outer diameter of the base part being greater than the outer diameter of the cooling air inlet.Type: ApplicationFiled: December 22, 2017Publication date: December 10, 2020Inventors: Kenta Nishimura, Yasumi Fukuzumi, Yoshihiro Takahashi, Koki Tsuruda, Fumio Minami
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Publication number: 20200383267Abstract: A mower comprises: a cutter housing having an inner hole in which an output shaft of a motor is inserted; and a motor cover provided above the cutter housing with a space therebetween, the motor cover covering the motor. Cooling air leadout openings for leading cooling air in the motor cover to the outside are formed in the motor cover, the cooling air leadout openings being positioned inward of a peripheral wall part of the motor cover and outward of the inner hole of the cutter housing.Type: ApplicationFiled: December 22, 2017Publication date: December 10, 2020Inventors: Kenta Nishimura, Yasumi Fukuzumi, Yoshihiro Takahashi, Koki Tsuruda, Fumio Minami
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Publication number: 20200100426Abstract: A cutter blade for a lawn mower is provided with an upper blade and a lower blade. The upper blade has an upper blade base and an upper outer end positioned above and further radially outward than the upper blade base. The lower blade has a lower blade base and a mowing section positioned below and further radially outward than the lower blade base. The upper blade base overlaps the lower blade base.Type: ApplicationFiled: December 26, 2017Publication date: April 2, 2020Inventors: Mai Kurihara, Fumio Minami, Yuko Nishi, Hiroshi Kobayashi
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Patent number: 8522518Abstract: The rear shield of a walk-behind lawnmower extends downward from a rear end part of a housing and is in the form of an elastic sheet. The sheet has a thin-walled part formed in a central site in a heightwise direction between an upper end part and a lower end part, the upper end part being attached to the rear end part of the housing. The thin-walled part has a thickness set to be smaller than a thickness of other parts.Type: GrantFiled: March 30, 2011Date of Patent: September 3, 2013Assignee: Honda Motor Co., Ltd.Inventors: Nobuyuki Hirose, Hiroshi Hojo, Shuhei Maruyama, Fumio Minami
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Patent number: 8132396Abstract: A lawnmower capable of being switched between a bagging mode and a mulching mode is disclosed. The lawnmower includes a shutter mechanism provided on an internal peripheral surface of a housing which opens downward for storing a cutting blade. The shutter mechanism is switched, by the operation of the shutter mechanism, between a bagging mode for delivering cut grass from the housing to a cut grass storage container and a mulching mode for discharging the cut grass out below the housing. The shutter mechanism has a kicker on a shutter body positioned in the interior of the housing. The kicker guides the cut grass to the bottom of the housing during the mulching mode.Type: GrantFiled: June 2, 2010Date of Patent: March 13, 2012Assignee: Honda Motor Co., Ltd.Inventors: Fumio Minami, Kenzo Shimada, Hiroshi Kobayashi, Hiroshi Hojo, Shuhei Maruyama
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Publication number: 20110239615Abstract: A walk-behind lawnmower having a rear shield is disclosed. The rear shield extends downward from a rear end part of a housing and is in the form of an elastic sheet. The sheet has a thin-walled part formed in a central site in a heightwise direction between an upper end part and a lower end part, the upper end part being attached to the rear end part of the housing. The thin-walled part has a thickness set to be smaller than a thickness of other parts.Type: ApplicationFiled: March 30, 2011Publication date: October 6, 2011Applicant: HONDA MOTOR CO., LTDInventors: Nobuyuki Hirose, Hiroshi Hojo, Shuhei Maruyama, Fumio Minami
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Patent number: 8015786Abstract: A lawnmower including a cut grass storage container for storing cut grass. The lawnmower also includes a cutting blade, a downwardly-opening housing, and a cut grass conveyor passage. The cut grass storage container is provided to the cut grass conveyor passage. Grass that has been cut is delivered to the cut grass conveyor passage while revolving about a shaft inside the housing. A guide member is provided inside the housing. The guide member guides the revolving grass to the cut grass conveyor passage while guiding the grass to the outer periphery of the housing.Type: GrantFiled: June 2, 2010Date of Patent: September 13, 2011Assignee: Honda Motor Co., Ltd.Inventors: Fumio Minami, Hiroshi Hojo, Hiroshi Kobayashi, Kenzo Shimada, Kazuki Shimozono
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Publication number: 20100307122Abstract: A lawnmower including a cut grass storage container for storing cut grass. The lawnmower also includes a cutting blade, a downwardly-opening housing, and a cut grass conveyor passage. The cut grass storage container is provided to the cut grass conveyor passage. Grass that has been cut is delivered to the cut grass conveyor passage while revolving about a shaft inside the housing. A guide member is provided inside the housing. The guide member guides the revolving grass to the cut grass conveyor passage while guiding the grass to the outer periphery of the housing.Type: ApplicationFiled: June 2, 2010Publication date: December 9, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Fumio Minami, Hiroshi Hojo, Hiroshi Kobayashi, Kenzo Shimada, Kazuki Shimozono
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Publication number: 20100307123Abstract: A lawnmower capable of being switched between a bagging mode and a mulching mode is disclosed. The lawnmower includes a shutter mechanism provided on an internal peripheral surface of a housing which opens downward for storing a cutting blade. The shutter mechanism is switched, by the operation of the shutter mechanism, between a bagging mode for delivering cut grass from the housing to a cut grass storage container and a mulching mode for discharging the cut grass out below the housing. The shutter mechanism has a kicker on a shutter body positioned in the interior of the housing. The kicker guides the cut grass to the bottom of the housing during the mulching mode.Type: ApplicationFiled: June 2, 2010Publication date: December 9, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Fumio Minami, Kenzo Shimada, Hiroshi Kobayashi, Hiroshi Hojo, Shuhei Maruyama