Patents by Inventor Hideki Tsuji
Hideki Tsuji 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: 20240113577Abstract: A rotor includes stacked core plates, a hole, and a magnet inserted into the hole. A holding core plate has a through hole as part of the hole, a protrusion protruding inwardly from an inner surface of the through hole and being in contact with the magnet, and a displacement permission portion located in an opposite direction to a protrusion direction of the protrusion and permitting displacement of the protrusion in the opposite direction. The rotor includes at least one of a magnet-side chamfered portion in which the front side edge portion of the magnet is chamfered or a protrusion-side chamfered portion in which the tip end edge portion of the protrusion is chamfered. A sum of lengths of the magnet-side and protrusion-side chamfered portions is equal to or longer than a length of the protrusion in the protrusion direction as the rotor is viewed from the axial direction.Type: ApplicationFiled: September 27, 2023Publication date: April 4, 2024Inventors: Yosuke TANAKA, Takeshi HONDA, Hirofumi MUTO, Hideki TSUJI, Yuya DANJO
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Publication number: 20240113576Abstract: A rotor includes core plates, a hole, and a magnet in the hole. The core plates include a first core plate and a second core plate frontward of the first core plate. The first core plate includes a first hole, a first protrusion protruding inward of the first hole, and a first portion located in an opposite direction to a protrusion direction of the first protrusion as viewed from the axial direction and permitting deformation of the first protrusion in the opposite direction. The second core plate includes a second hole, and at least one of a recess recessed in the opposite direction and overlapping the first protrusion as viewed in the axial direction, or a second portion located in the opposite direction with respect to the first protrusion as viewed in the axial direction and permitting deformation of an inner surface of the second hole in the opposite direction.Type: ApplicationFiled: September 25, 2023Publication date: April 4, 2024Inventors: Yosuke TANAKA, Takeshi HONDA, Hirofumi MUTO, Hideki TSUJI, Yuya DANJO
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Publication number: 20240099951Abstract: To provide a hair growth agent and a scalp care agent which are topical agents that exhibit scalp care effect as well as effect in terms of causing increase in hair shaft diameter and effect in terms of improving maximum hair shaft length and improving hair shaft elongation rate and new hair growth and increasing expression of genes contributing to hair growth in dermal papilla cells and promoting hair shaft growth at head hair, beard, eyebrows, and/or eyelashes, these are made to contain an active ingredient in the form of phytosphingosine.Type: ApplicationFiled: November 18, 2021Publication date: March 28, 2024Applicants: ADJUVANT HOLDINGS CO., LTD., RIKENInventors: Sota Nakamura, Hideki Takahashi, Yukimi Nakaike, Takashi Tsuji
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Patent number: 11845168Abstract: A reciprocating tool includes a motor, a driving mechanism, a body housing, a movable part, and a vibration control mechanism. The driving mechanism includes a reciprocating member configured to reciprocate in a first direction. The movable part is connected to the body housing via a first elastic member and a second elastic member to be relatively movable in the first direction. The vibration control mechanism includes at least one weight configured to move in a direction opposite to the reciprocating member. The center of gravity of the at least one weight is offset from the driving axis in a second direction. In the second direction, the first elastic member is closer to the center of gravity than the second elastic member. A load of the first elastic member when the movable part is placed in a closer position is smaller than a load of the second elastic member.Type: GrantFiled: October 20, 2020Date of Patent: December 19, 2023Assignee: MAKITA CORPORATIONInventors: Hideki Tsuji, Hajime Takeuchi, Kei Watanabe, Kazuo Muramatsu, Masahiro Maegawa
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Patent number: 11780069Abstract: A dust collecting system includes a power tool and a dust collector. The power tool is configured to perform processing operation on a workpiece by driving a tool accessory. The dust collector is configured to collect dust generated by the processing operation. The power tool includes a first motor and a driving mechanism configured to drive the tool accessory by power of the first motor. The dust collector includes a second motor and a fan configured to be rotationally driven by the second motor to generate air flow for collecting dust. The dust collecting system includes a first control device configured to control a rotation speed of the second motor according to a driving state of the power tool.Type: GrantFiled: March 26, 2020Date of Patent: October 10, 2023Assignee: MAKITA CORPORATIONInventors: Hitoshi Iida, Yoshiro Tada, Hideki Tsuji, Taro Hisano
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Patent number: 11679482Abstract: A power tool includes a motor, a housing, a battery holder and a cushion. The battery holder is held by the housing to be movable at least in a first direction relative to the housing. The battery holder is configured to removably receive a battery for supplying electric power to the motor. The cushion is held by the housing such that the first direction intersects the cushion. When the battery is attached to the battery holder, the cushion is directly or indirectly disposed between the battery and the housing.Type: GrantFiled: March 1, 2021Date of Patent: June 20, 2023Assignee: MAKITA CORPORATIONInventors: Masanori Furusawa, Hajime Takeuchi, Hideki Tsuji, Yoshiro Tada
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Publication number: 20230026934Abstract: [Object] The object of the disclosure is to provide a structuring technique which contributes to the rationalization of dispositioning parts and operability with respect to a striking tool in which usual operation is defined as a striking operation to the downward in a state that the striking tool is downwardly dropped by the own weight of the striking tool. [Embodiment to Achieve the Object] A striking tool 100 in which striking operation is done in a state that the striking tool 100 is downwardly dropped by the own weight, having a motor 210 with an output shaft to drive the drive mechanism, a controller 260 to control the motor 210, a functional member 280 to assist the striking operation and a controller case 270 to hold the controller 260, wherein the controller case 270 further holds the functional member 280.Type: ApplicationFiled: June 16, 2022Publication date: January 26, 2023Applicant: MAKITA CORPORATIONInventors: Kiyonobu YOSHIKANE, Hideki TSUJI
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Publication number: 20230027574Abstract: A structuring technique contributes to the rationalization of dispositioning parts and operability with respect to a striking tool wherein usual operation is defined as a striking operation to the downward in a state that the striking tool is downwardly dropped by the own weight of the striking tool. A striking tool is held by a pair of handles by both hands while striking operation takes place when the striking tool drops downwardly by the own weight, a drive mechanism drives an end tool in a first direction and motor, wherein the output shaft of the motor extends in a third direction defined as a thickness direction to cross the first direction and the second direction, and a battery mounting portion is disposed at the side region of the main housing in the second direction, wherein a battery to supply electricity to the motor is mounted to the battery mounting portion.Type: ApplicationFiled: June 16, 2022Publication date: January 26, 2023Applicant: MAKITA CORPORATIONInventors: Kiyonobu YOSHIKANE, Masanori FURUSAWA, Hideki TSUJI
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Patent number: 11491598Abstract: A dust collecting system includes a power tool and a stationary dust collector. The power tool is configured to perform processing operation on a workpiece by driving a tool accessory. The stationary dust collector is configured to be placed separately from the power tool and to collect dust generated by the processing operation. The power tool includes a first motor and a driving mechanism configured to drive the tool accessory by power of the first motor. The dust collector includes a second motor and a fan configured to be rotationally driven by the second motor to generate air flow for collecting dust. The dust collecting system includes a control device configured to control a rotation speed of the second motor according to a driving state of the power tool.Type: GrantFiled: March 26, 2020Date of Patent: November 8, 2022Assignee: MAKITA CORPORATIONInventors: Hitoshi Iida, Yoshiro Tada, Hideki Tsuji, Taro Hisano
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Publication number: 20210283758Abstract: A power tool includes a motor, a housing, a battery holder and a cushion. The battery holder is held by the housing to be movable at least in a first direction relative to the housing. The battery holder is configured to removably receive a battery for supplying electric power to the motor. The cushion is held by the housing such that the first direction intersects the cushion. When the battery is attached to the battery holder, the cushion is directly or indirectly disposed between the battery and the housing.Type: ApplicationFiled: March 1, 2021Publication date: September 16, 2021Applicant: MAKITA CORPORATIONInventors: Masanori FURUSAWA, Hajime TAKEUCHI, Hideki TSUJI, Yoshiro TADA
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Publication number: 20210129307Abstract: A reciprocating tool includes a motor, a driving mechanism, a body housing, a movable part, and a vibration control mechanism. The driving mechanism includes a reciprocating member configured to reciprocate in a first direction. The movable part is connected to the body housing via a first elastic member and a second elastic member to be relatively movable in the first direction. The vibration control mechanism includes at least one weight configured to move in a direction opposite to the reciprocating member. The center of gravity of the at least one weight is offset from the driving axis in a second direction. In the second direction, the first elastic member is closer to the center of gravity than the second elastic member. A load of the first elastic member when the movable part is placed in a closer position is smaller than a load of the second elastic member.Type: ApplicationFiled: October 20, 2020Publication date: May 6, 2021Applicant: MAKITA CORPORATIONInventors: Hideki TSUJI, Hajime TAKEUCHI, Kei WATANABE, Kazuo MURAMATSU, Masahiro MAEGAWA
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Patent number: 10857644Abstract: A dust collector includes body, a dust-storing part, a sliding part, a dust-transfer passage, and a biasing member. The sliding part is held by the body to be slidable in a specified axial direction and has a suction port. The dust-transfer passage connects the suction port and the dust-storing part. The biasing member biases the sliding part in a first direction of the axial direction. The sliding part is configured to be normally held in an initial position in which the sliding part protrudes from the body by a specified length in the first direction, and to be moved in a second direction opposite to the first direction against the biasing force when pressed in the second direction. The dust collector includes a cushioning member configured to be interposed between the body and the sliding part in the axial direction when the sliding part is placed in the initial position.Type: GrantFiled: December 14, 2018Date of Patent: December 8, 2020Assignee: MAKITA CORPORATIONInventors: Masanori Furusawa, Hideki Tsuji
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Patent number: 10799996Abstract: A dust collector includes a main body, a sliding part, and a communication passage. The main body includes an internal region disposed between a power tool and a dust storing region. The sliding part is held by the main body so as to be slidable in a first direction while partly protruding out of the main body through an opening and partly disposed in the internal region. The communication passage extends in a second direction crossing the first direction within the internal region. When the sliding part is placed at a closest position, a distance in the first direction between the opening and an innermost end of the sliding part is longer than a distance between the opening and the communication passage. The sliding part includes an interference avoiding part configured to avoid interference with the communication passage when the sliding part is placed at the closest position.Type: GrantFiled: June 9, 2017Date of Patent: October 13, 2020Assignee: MAKITA CORPORATIONInventors: Masanori Furusawa, Hideki Tsuji
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Publication number: 20200306907Abstract: A dust collecting system includes a power tool and a stationary dust collector. The power tool is configured to perform processing operation on a workpiece by driving a tool accessory. The stationary dust collector is configured to be placed separately from the power tool and to collect dust generated by the processing operation. The power tool includes a first motor and a driving mechanism configured to drive the tool accessory by power of the first motor. The dust collector includes a second motor and a fan configured to be rotationally driven by the second motor to generate air flow for collecting dust. The dust collecting system includes a control device configured to control a rotation speed of the second motor according to a driving state of the power tool.Type: ApplicationFiled: March 26, 2020Publication date: October 1, 2020Applicant: MAKITA CORPORATIONInventors: Hitoshi IIDA, Yoshiro TADA, Hideki TSUJI, Taro HISANO
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Publication number: 20200305665Abstract: The filter can receive timely maintenance. A dust collection system includes a hammer drill, a dust collection attachment connected to the hammer drill and including a dust collection motor that generates a suction force and a filter that catches sucked dust, and a dust collection controller that monitors a state of the dust collection attachment to determine a time to perform maintenance.Type: ApplicationFiled: February 13, 2020Publication date: October 1, 2020Applicant: MAKITA CORPORATIONInventors: Kiyonobu YOSHIKANE, Hideki TSUJI
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Publication number: 20200306904Abstract: A dust collecting system includes a power tool and a dust collector. The power tool is configured to perform processing operation on a workpiece by driving a tool accessory. The dust collector is configured to collect dust generated by the processing operation. The power tool includes a first motor and a driving mechanism configured to drive the tool accessory by power of the first motor. The dust collector includes a second motor and a fan configured to be rotationally driven by the second motor to generate air flow for collecting dust. The dust collecting system includes a first control device configured to control a rotation speed of the second motor according to a driving state of the power tool.Type: ApplicationFiled: March 26, 2020Publication date: October 1, 2020Applicant: MAKITA CORPORATIONInventors: Hitoshi IIDA, Yoshiro TADA, Hideki TSUJI, Taro HISANO
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Patent number: 10724206Abstract: A wheel loader includes a vehicular body, a work implement, a front wheel, and a control unit. The work implement is disposed in front of the vehicular body. The work implement has a boom. The front wheel has a tire made of an elastic material. The control unit starts to raise the boom while the tire compressed in a vertical direction rebounds and vertically stretches.Type: GrantFiled: July 11, 2016Date of Patent: July 28, 2020Assignee: KOMATSU LTD.Inventor: Hideki Tsuji
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Patent number: 10704228Abstract: A control system for a work vehicle includes a position determination unit which determines a position of loading on a loaded vehicle based on a state of loading on the loaded vehicle, a display, and a representation control unit which has the display show loading guidance corresponding to the position of loading determined by the position determination unit for a laterally viewed loaded vehicle.Type: GrantFiled: July 19, 2016Date of Patent: July 7, 2020Assignee: KOMATSU LTD.Inventor: Hideki Tsuji
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Wheel loader and method for automically accumulating transport operation information of wheel loader
Patent number: 10597852Abstract: The wheel loader includes a boom, a bucket, a travel device, a travel distance measuring unit, a state determining unit, and an accumulating unit. The bucket is attached to the tip end of the boom. The travel distance measuring unit measures a travel distance. The state determining unit determines the loaded state of the bucket. The accumulating unit automatically accumulates transport operation information about the load of the bucket when a predetermined distance or more is traveled under the loaded state.Type: GrantFiled: April 28, 2016Date of Patent: March 24, 2020Assignee: KOMATSU LTD.Inventors: Takashi Hori, Satoru Utsumi, Hideki Tsuji -
Patent number: 10557249Abstract: A wheel loader includes a work implement, an obtaining unit, and a control unit. The work implement includes a bucket. The obtaining unit obtains soil property information on a soil property of an excavation object. The control unit controls an operation to excavate the excavation object with the bucket of the work implement based on the soil property information obtained by the obtaining unit.Type: GrantFiled: July 19, 2016Date of Patent: February 11, 2020Assignee: KOMATSU LTD.Inventor: Hideki Tsuji