Patents by Inventor Fumitoshi Numata
Fumitoshi Numata 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: 20240395260Abstract: A power tool system includes at least one controlled device including a power tool, and a voice control device configured to wirelessly communicate with the at least one controlled device. The voice control device includes a at least one first processor configured to control operation of the at least one controlled device. The at least one first processor is configured to acquire voice data, and to control operation of the power tool in accordance with a command relating to the operation of the power tool and identified based on the voice data.Type: ApplicationFiled: April 30, 2024Publication date: November 28, 2024Applicant: MAKITA CORPORATIONInventors: Fumitoshi NUMATA, Koichi YAKABE, Takumi HAYASHI
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Publication number: 20240337271Abstract: A blower includes a body, a motor, and a single fan configured to rotate in response to rotation of a motor shaft to discharge air through a discharge opening. The maximum rotational speed of the motor shaft is within a range of 50,000 rpm to 120,000 rpm. An area of the discharge opening is changeable by a user. The blower is configured to selectively operate in a first mode or in a second mode according to the area of the discharge opening. In the first mode, the maximum blowing force of the air discharged through the opening is within a range of 2.5 N to 5.0 N when the motor is driven at the maximum rotational speed. In the second mode, the maximum dynamic pressure of the air discharged is within a range of 30 kPa to 65 kPa when the motor is driven at the maximum rotational speed.Type: ApplicationFiled: June 20, 2024Publication date: October 10, 2024Applicant: MAKITA CORPORATIONInventor: Fumitoshi NUMATA
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Publication number: 20240326223Abstract: A power tool is configured such that at least one accessory is mountable in a detachable manner. The power tool includes at least one camera and a determining part. The at least one accessory may be an auxiliary handle and/or a cover, which at least partially covers a tool accessory mounted on the power tool in a detachable manner. The determining part is configured to perform image processing on image data output from the at least one camera and to determine whether the state of the at least one accessory is normal based on at least whether the at least one accessory is mounted on the power tool.Type: ApplicationFiled: March 7, 2024Publication date: October 3, 2024Inventors: Takumi HAYASHI, Fumitoshi NUMATA, Koichi YAKABE
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Patent number: 12055158Abstract: A blower includes a body, a motor, and a single fan configured to rotate in response to rotation of a motor shaft to discharge air through a discharge opening. The maximum rotational speed of the motor shaft is within a range of 50,000 rpm to 120,000 rpm. An area of the discharge opening is changeable by a user. The blower is configured to selectively operate in a first mode or in a second mode according to the area of the discharge opening. In the first mode, the maximum blowing force of the air discharged through the opening is within a range of 2.5 N to 5.0 N when the motor is driven at the maximum rotational speed. In the second mode, the maximum dynamic pressure of the air discharged is within a range of 30 kPa to 65 kPa when the motor is driven at the maximum rotational speed.Type: GrantFiled: September 15, 2023Date of Patent: August 6, 2024Assignee: MAKITA CORPORATIONInventor: Fumitoshi Numata
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Publication number: 20240200568Abstract: A blower includes a motor, a plurality of fans coaxially arranged in multiple stages, a housing having an inlet opening and a discharge opening, and a battery mounting part to which a battery is removably mountable. A rotational speed of the motor is within a range of 50,000 rpm to 120,000 rpm. A diameter of each of the fans is within a range of 30 mm to 70 mm. An area of the discharge opening is within a range of not less than an area of a circle having a diameter of 2.5 mm and not more than an area of a circle having a diameter of 10 mm. A blowing force of air discharged through the discharge opening is within a range of 1 N to 3 N.Type: ApplicationFiled: March 4, 2024Publication date: June 20, 2024Applicant: Makita CorporationInventors: Akira OJIMA, Fumitoshi NUMATA
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Publication number: 20240157500Abstract: A power tool includes a brake assembly including a swing member swingable about a pivot at an axial center decentered from a center of a brake member, a press member held by the swing member to come in contact with the brake member in response to the swing member swinging, and a spring having an axial center at a second decentered position opposite to the pivot with the center of the brake member between the axial center and the pivot. The axial center is on a second line orthogonal to a first line extending through the center of the brake member and the pivot. The spring has an elastic movable end in contact with an end of the swing member to urge the swing member to a position at which the press member is in contact with the brake member with a switch being in an off state.Type: ApplicationFiled: September 11, 2023Publication date: May 16, 2024Applicant: MAKITA CORPORATIONInventor: Fumitoshi NUMATA
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Patent number: 11981018Abstract: A power tool includes an accessory and a reader. The accessory is configured to be attachable to and detachable from the power tool. The accessory includes a passive wireless tag. The reader includes at least one antenna and a reading part. The reading part is electrically connected to the at least one antenna. The reading part is configured to wirelessly communicate with the wireless tag via the at least one antenna and to read information stored in the wireless tag when the accessory is attached to the power tool.Type: GrantFiled: July 28, 2020Date of Patent: May 14, 2024Assignee: MAKITA CORPORATIONInventor: Fumitoshi Numata
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Patent number: 11951504Abstract: An electric blower is configured to blow air. The blower includes a body configured such that a sprayer attachment is attachable thereto. The body is configured to be carried integrally with the sprayer attachment with the sprayer attachment attached to the body. The sprayer attachment includes a container, a nozzle and a liquid supply passage. The container is configured to store a liquid. The nozzle has a discharge opening. The liquid supply passage is connected to the container and the nozzle to lead the liquid.Type: GrantFiled: March 2, 2022Date of Patent: April 9, 2024Assignee: MAKITA CORPORATIONInventor: Fumitoshi Numata
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Patent number: 11946484Abstract: A blower includes a motor, a plurality of fans coaxially arranged in multiple stages, a housing having an inlet opening and a discharge opening, and a battery mounting part to which a battery is removably mountable. A rotational speed of the motor is within a range of 50,000 rpm to 120,000 rpm. A diameter of each of the fans is within a range of 30 mm to 70 mm. An area of the discharge opening is within a range of not less than an area of a circle having a diameter of 2.5 mm and not more than an area of a circle having a diameter of 10 mm. A blowing force of air discharged through the discharge opening is within a range of 1 N to 3 N.Type: GrantFiled: July 13, 2021Date of Patent: April 2, 2024Assignee: MAKITA CORPORATIONInventors: Akira Ojima, Fumitoshi Numata
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Publication number: 20240017369Abstract: To reduce wasteful power consumption and noise generation, a control circuit drives a motor in response to a switch being turned on after a handle detector detects attachment of an auxiliary handle and a handle gripping detector detects gripping of the auxiliary handle, controls the motor to rotate at a predetermined first rotational speed in response to the switch being turned on with the attachment and the gripping of the auxiliary handle being detected, and controls the motor to rotate at a second rotational speed lower than the first rotational speed in response to a state of a load on a tip tool being unchanged for a predetermined period of time.Type: ApplicationFiled: May 15, 2023Publication date: January 18, 2024Applicant: MAKITA CORPORATIONInventor: Fumitoshi NUMATA
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Publication number: 20240011502Abstract: A blower includes a body having a main inlet opening and a discharge opening, a motor assembly housed in the body, and an auxiliary inlet opening. The motor assembly includes a case, a motor and a fan. The case has a first opening and a second opening. The motor is housed within the case. The fan is configured to rotate in response to driving of the motor to generate a flow of air passing the main inlet opening, the first opening, the motor, the second opening and the discharge opening in this order. A first space that communicates with the main inlet opening and the first opening of the case is formed within the body. The auxiliary inlet opening is configured to introduce the air from an outside of the body into the first space.Type: ApplicationFiled: September 20, 2023Publication date: January 11, 2024Applicant: MAKITA CORPORATIONInventors: Fumitoshi NUMATA, Takumi HAYASHI
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Publication number: 20240003360Abstract: A blower includes a body, a motor, and a single fan configured to rotate in response to rotation of a motor shaft to discharge air through a discharge opening. The maximum rotational speed of the motor shaft is within a range of 50,000 rpm to 120,000 rpm. An area of the discharge opening is changeable by a user. The blower is configured to selectively operate in a first mode or in a second mode according to the area of the discharge opening. In the first mode, the maximum blowing force of the air discharged through the opening is within a range of 2.5 N to 5.0 N when the motor is driven at the maximum rotational speed. In the second mode, the maximum dynamic pressure of the air discharged is within a range of 30 kPa to 65 kPa when the motor is driven at the maximum rotational speed.Type: ApplicationFiled: September 15, 2023Publication date: January 4, 2024Applicant: MAKITA CORPORATIONInventor: Fumitoshi NUMATA
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Patent number: 11846291Abstract: A blower includes a blower body and a nozzle. The blower body includes a housing having an inlet opening, a motor housed in the housing and at least one fan housed in the housing. The nozzle is connected to the blower body and extends in an axial direction. The nozzle has a discharge opening formed in its one end in the axial direction and at least one vent hole formed in a different position from the discharge opening.Type: GrantFiled: September 2, 2021Date of Patent: December 19, 2023Assignee: MAKITA CORPORATIONInventor: Fumitoshi Numata
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Patent number: 11802573Abstract: A blower includes a body having a main inlet opening and a discharge opening, a motor assembly housed in the body, and an auxiliary inlet opening. The motor assembly includes a case, a motor and a fan. The case has a first opening and a second opening. The motor is housed within the case. The fan is configured to rotate in response to driving of the motor to generate a flow of air passing the main inlet opening, the first opening, the motor, the second opening and the discharge opening in this order. A first space that communicates with the main inlet opening and the first opening of the case is formed within the body. The auxiliary inlet opening is configured to introduce the air from an outside of the body into the first space.Type: GrantFiled: December 20, 2021Date of Patent: October 31, 2023Assignee: MAKITA CORPORATIONInventors: Fumitoshi Numata, Takumi Hayashi
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Patent number: 11795967Abstract: A blower includes a body, a motor, and a single fan configured to rotate in response to rotation of a motor shaft to discharge air through a discharge opening. The maximum rotational speed of the motor shaft is within a range of 50,000 rpm to 120,000 rpm. An area of the discharge opening is changeable by a user. The blower is configured to selectively operate in a first mode or in a second mode according to the area of the discharge opening. In the first mode, the maximum blowing force of the air discharged through the opening is within a range of 2.5 N to 5.0 N when the motor is driven at the maximum rotational speed. In the second mode, the maximum dynamic pressure of the air discharged is within a range of 30 kPa to 65 kPa when the motor is driven at the maximum rotational speed.Type: GrantFiled: December 20, 2021Date of Patent: October 24, 2023Assignee: MAKITA CORPORATIONInventor: Fumitoshi Numata
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Publication number: 20230330808Abstract: A grinding tool facilitates wiring between a detector for an auxiliary handle and a controller. A grinding tool includes a motor, a housing including an inner housing accommodating the motor and an outer housing covering an exterior of the inner housing and extending rearward from the inner housing, a spindle protruding from a front of the housing, rotatable when driven by the motor, and including a protruding end to receive a tip tool, a controller that controls driving of the motor, a handle mount located at the front of the housing to receive an auxiliary handle in a detachable manner, a handle detector that electrically detects an attachment of the auxiliary handle to the handle mount, and wiring extending between the inner housing and the outer housing to electrically connect the controller and the handle detector.Type: ApplicationFiled: February 17, 2023Publication date: October 19, 2023Applicant: MAKITA CORPORATIONInventor: Fumitoshi NUMATA
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Publication number: 20230302624Abstract: An electric power tool includes a housing, a fan, a tubular portion, and a rectifier. The housing houses a motor. The fan rotates in association with driving of the motor to generate a cooling air for the motor within the housing. The tubular portion is formed in the housing to house the fan. The rectifier is disposed to be opposed to the fan in an upstream side of the cooling air. The rectifier is divided into an inside and an outside in a radial direction of the tubular portion, the outside in the radial direction is formed of the tubular portion, and the inside in the radial direction is formed of a baffle plate assembled to the housing.Type: ApplicationFiled: April 21, 2023Publication date: September 28, 2023Applicant: MAKITA CORPORATIONInventor: Fumitoshi NUMATA
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Publication number: 20230278157Abstract: A grinder includes a locking assembly to lock a spindle in a head housing and has outlets with a large opening area for high cooling efficiency. A grinder includes a main housing accommodating a motor and a fan, a spindle, a locking assembly that locks rotation of the spindle, and a head housing including a joint connected to a front of the main housing, and a compartment accommodating the spindle and the locking assembly. The compartment is laterally less wide than the joint. The locking assembly is located at a middle in a lateral direction of the head housing. The joint has, in a portion of a front surface of the joint, a first outlet at least on a right or a left of the compartment to discharge air for cooling the motor generated from rotation of the fan.Type: ApplicationFiled: January 5, 2023Publication date: September 7, 2023Applicant: MAKITA CORPORATIONInventor: Fumitoshi NUMATA
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Publication number: 20230249314Abstract: Heat generated during braking is reduced to prevent reduction in braking performance or the service life of the components. A grinder includes a housing, an operable member, a switch operable to be turned on or off in response to an operation on the operable member, a rotational shaft rotatable in response to an operation for turning on the switch, and a brake assembly that applies braking to the rotational shaft with the switch being in an off state and to release the braking applied to the rotational shaft in response to an operation for turning on the switch performed by the operable member. The brake assembly includes a brake member being circular and fixed to the rotational shaft, and multiple pressing members that press the brake member at multiple positions to apply a uniform force to the brake member from radially outward positions toward a center of the brake member.Type: ApplicationFiled: January 6, 2023Publication date: August 10, 2023Applicant: MAKITA CORPORATIONInventor: Fumitoshi NUMATA
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Patent number: D997476Type: GrantFiled: January 7, 2022Date of Patent: August 29, 2023Assignee: MAKITA CORPORATIONInventors: Xing Xu, Tatsuya Kobayashi, Dan Shi, Fumitoshi Numata