Patents by Inventor Hajime Takeuchi
Hajime Takeuchi 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: 11292099Abstract: A dust collecting system includes a power tool and a dust collector. The dust collector includes a body, a sliding part, a biasing member, a lock member and an actuator. The body is configured to be removably attached to the power tool. The sliding part is held by the body so as to be slidable along a sliding axis. The biasing member is configured to bias the sliding part forward to hold the sliding part in a first position. The lock member is configured to lock the sliding part relative to the body in a second position. The actuator is configured to unlock the sliding part locked by the lock member, by operating in response to a motor-starting operation for the power tool by a user.Type: GrantFiled: March 4, 2020Date of Patent: April 5, 2022Assignee: MAKITA CORPORATIONInventor: Hajime Takeuchi
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Patent number: 11228600Abstract: The car sharing system includes a car share device and an encryption code updating unit. The car share device is configured to perform wireless communicate with a mobile terminal that is operable as a vehicle key. The encryption code updating unit updates a first encryption code, which was used during a previous connection of the mobile terminal and the car share device, to a second encryption code, which differs from the first encryption code, when the mobile terminal and the car share device are reconnected.Type: GrantFiled: October 4, 2018Date of Patent: January 18, 2022Assignees: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hajime Takeuchi, Masaki Hayashi, Masahiko Oya, Hidenobu Hanaki, Junji Murase, Yosuke Doi, Masaki Oshima, Yuichiro Haruna
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Publication number: 20210402584Abstract: A power tool (100) comprises a motor (110) operably driving a tool bit (119), a tool body (101) housing the motor (110), a handle (109) coupled to the tool body (101), and at least two battery mount parts (160A, 160B) defined on the handle (109) and/or the tool body (101). Each of the battery mount parts (160A, 160B) comprises a battery engaging part (161) configured to detachably engage with battery packs (170A, 170B) by sliding the battery packs (170A, 170B) relative to the battery engaging part (161) in a direction perpendicular to the longitudinal direction of the tool bit (119). In a state in which at least one of the battery packs (170A, 170B) is mounted on at least one of the battery mount parts (160A, 160B), a length of the mounted battery in a driving axis extending direction is shorter than a length of the mounted battery in a cross direction.Type: ApplicationFiled: September 13, 2021Publication date: December 30, 2021Inventors: Kiyonobu YOSHIKANE, Hajime TAKEUCHI, Yoshiro TADA, Masanori FURUSAWA, Masao MIWA, Shinji ONODA, Yoshitaka MACHIDA
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Patent number: 11148272Abstract: A power tool (100) comprises a motor (110) operably driving a tool bit (119), a tool body (101) housing the motor (110), a handle (109) coupled to the tool body (101), and at least two battery mount parts (160A, 160B) defined on the handle (109) and/or the tool body (101). Each of the battery mount parts (160A, 160B) comprises a battery engaging part (161) configured to detachably engage with battery packs (170A, 170B) by sliding the battery packs (170A, 170B) relative to the battery engaging part (161) in a direction perpendicular to the longitudinal direction of the tool bit (119).Type: GrantFiled: September 3, 2019Date of Patent: October 19, 2021Assignee: MAKITA CORPORATIONInventors: Kiyonobu Yoshikane, Hajime Takeuchi, Yoshiro Tada, Masanori Furusawa, Masao Miwa, Shinji Onoda, Yoshitaka Machida
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Publication number: 20210299839Abstract: A power tool includes a hammer mechanism, a brushless motor and a cooling fan. The brushless motor includes a rotary member having a motor shaft operably coupled to the hammer mechanism for linearly driving a tool accessory. The cooling fan has a first blade part and is configured to be rotated by the rotary member. The cooling fan includes a polymer portion, which forms at least a portion of the first blade part, and a metal portion disposed in or on the polymer portion. When viewed in a direction parallel to a rotational axis of the cooling fan, the metal member at least partially overlaps the first blade part in a radial direction of the cooling fan.Type: ApplicationFiled: March 30, 2021Publication date: September 30, 2021Inventors: Masanori FURUSAWA, Hajime TAKEUCHI, Yoji INOUE
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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: 20210237248Abstract: A rotary hammer includes a motor, a manipulation member, a main switch, a mode-switching member, a first locking member and a second locking member. The first locking member is configured to selectively lock the manipulation member in an OFF position according to a switching position of the mode-switching member. The second locking member is configured to selectively lock the manipulation member in an ON position according to the switching position of the mode-switching member. The first locking member is allowed to lock the manipulation member in the OFF position both when a hammer mode has been selected and when a drill mode has been selected. The motor is allowed to be driven in a state in which the manipulation member is locked in the ON position by the second locking member only when the hammer mode has been selected.Type: ApplicationFiled: January 22, 2021Publication date: August 5, 2021Applicant: MAKITA CORPORATIONInventors: Masanori FURUSAWA, Hajime TAKEUCHI
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Patent number: 11072061Abstract: A rotary tool includes a motor, a final output shaft, a housing, a detecting mechanism, an interrupting mechanism and a solenoid. The motor includes a motor body and a motor shaft. The final output shaft is configured to be rotationally driven by torque transmitted from the motor shaft. The housing houses the motor and the final output shaft. The detecting mechanism is configured to detect a motion state of the housing. The interrupting mechanism is provided on a transmission path of the torque from the motor shaft to the final output shaft, and configured to interrupt transmission of the torque. The solenoid includes a linearly movable actuation part and is configured to mechanically actuate the interrupting mechanism via the actuation part based on the motion state of the housing detected by the detecting mechanism.Type: GrantFiled: October 11, 2018Date of Patent: July 27, 2021Assignee: MAKITA CORPORATIONInventors: Hajime Takeuchi, Masanori Furusawa
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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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Publication number: 20210078132Abstract: A grinder includes a brake mechanism configured to brake a spindle and an electrical actuator (a solenoid) that actuates the brake mechanism. The solenoid actuates the brake mechanism in conjunction with a turning OFF of a switch from a driving state of a motor, and releases an actuation of the brake mechanism after a lapse of a predetermined period of time from the turning OFF of the switch.Type: ApplicationFiled: June 13, 2018Publication date: March 18, 2021Applicant: MAKITA CORPORATIONInventor: Hajime TAKEUCHI
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Patent number: 10886434Abstract: A white LED lamp including: a conductive portion; a light emitting diode chip mounted on the conductive portion, for emitting a primary light having a peak wavelength of 360 nm to 420 nm; a transparent resin layer including a first hardened transparent resin, for sealing the light emitting diode chip; and a phosphor layer covering the transparent resin layer, the phosphor layer being formed by dispersing a phosphor powder into a second hardened transparent resin, and the phosphor powder receiving the primary light and radiating a secondary light having a wavelength longer than that of the primary light. An energy of the primary light contained in the radiated secondary light is 0.4 mW/lm or less.Type: GrantFiled: November 6, 2014Date of Patent: January 5, 2021Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.Inventors: Tsutomu Ishii, Hajime Takeuchi, Yasumasa Ooya, Katsutoshi Nakagawa, Yumi Kanno, Masaki Toyoshima, Yasuhiro Shirakawa, Ryo Sakai
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Publication number: 20200306946Abstract: A dust collecting system includes a power tool configured to perform processing operation on a workpiece by driving a tool accessory and a dust collector configured to collect dust generated by the processing operation. The power tool includes a first motor, a driving mechanism, a body housing, a first detecting device, an operation member and a second detecting device. The first detecting device is configured to detect an operation of pressing the tool accessory against the workpiece. The operation member is configured to be externally operated by a user. The second detecting device is configured to detect an operation of the operation member. The dust collector includes a second motor and a fan. The dust collecting system includes a first control device configured to control driving of the second motor based on detection results of the first detecting device and the second detecting device.Type: ApplicationFiled: March 26, 2020Publication date: October 1, 2020Applicant: MAKITA CORPORATIONInventor: Hajime TAKEUCHI
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Publication number: 20200290167Abstract: A dust collecting system includes a power tool and a dust collector, The dust collector includes a body, a sliding part, a biasing member, a lock member and an actuator. The body is configured to be removably attached to the power tool. The sliding part is held by the body so as to be slidable along a sliding axis. The biasing member is configured to bias the sliding part forward to hold the sliding part in a first position. The lock member is configured to lock the sliding part relative to the body in a second position. The actuator is configured to unlock the sliding part locked by the lock member, by operating in response to a motor-starting operation for the power tool by a user.Type: ApplicationFiled: March 4, 2020Publication date: September 17, 2020Applicant: MAKITA CORPORATIONInventor: Hajime TAKEUCHI
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Publication number: 20200271814Abstract: An embedded-object scanner device includes a sensing device housed in a housing and configured to sense one or more embedded objects embedded in a target material, and a display device provided on the housing. The display device is configured to collectively display multiple sets of display data generated in multiple sensing operations performed by the sensing device.Type: ApplicationFiled: February 25, 2020Publication date: August 27, 2020Inventors: Toshiro HIRAYAMA, Hajime TAKEUCHI, Hikaru SUNABE
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Patent number: 10744634Abstract: An impact tool is provided which has a driving mechanism, that drives a tool bit, a motor that drives the driving mechanism, an inner housing that houses the driving mechanism, an outer housing that has an internal space for housing the inner housing and the motor, an opening that leads from the outside to the internal space of the outer housing, and a covering member that covers the opening.Type: GrantFiled: November 9, 2017Date of Patent: August 18, 2020Assignee: MAKITA CORPORATIONInventors: Yasuhiro Kakiuchi, Hajime Takeuchi, Masanori Furusawa, Yoshiro Tada
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Publication number: 20200098047Abstract: A stock price analysis device of the present invention reads the probability of both the rise and fall in stock prices from information regarding stock prices and predicts future transitions in stock prices.Type: ApplicationFiled: November 27, 2019Publication date: March 26, 2020Inventor: Hajime TAKEUCHI
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Patent number: 10562167Abstract: An improved technique relating to mounting of a battery in an impact tool which has a handle configured to move with respect to a tool body. A hammer drill has a body, a handle part and a battery mounting part. The handle part is configured to slide with respect to the body under a biasing force of a coil spring. The battery mounting part has a plurality of mounting parts. At least one of the mounting parts of the battery mounting part is connected to the handle part and slides together with the handle part with respect to the body during operation.Type: GrantFiled: March 25, 2014Date of Patent: February 18, 2020Assignee: MAKITA CORPORATIONInventors: Hajime Takeuchi, Masanori Furusawa
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Publication number: 20190381646Abstract: A power tool (100) comprises a motor (110) operably driving a tool bit (119), a tool body (101) housing the motor (110), a handle (109) coupled to the tool body (101), and at least two battery mount parts (160A, 160B) defined on the handle (109) and/or the tool body (101). Each of the battery mount parts (160A, 160B) comprises a battery engaging part (161) configured to detachably engage with battery packs (170A, 170B) by sliding the battery packs (170A, 170B) relative to the battery engaging part (161) in a direction perpendicular to the longitudinal direction of the tool bit (119).Type: ApplicationFiled: September 3, 2019Publication date: December 19, 2019Inventors: Kiyonobu YOSHIKANE, Hajime TAKEUCHI, Yoshiro TADA, Masanori FURUSAWA, Masao MIWA, Shinji ONODA, Yoshitaka MACHIDA
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Patent number: 10500706Abstract: A rational technique which can realize vibration suppression and reduction of unstable driving elements of a striker. A representative power tool, a first compensation mechanism moves a swinging mechanism from a swinging mechanism reference position to a swinging mechanism moving position and moves a cylinder to a second side, thereby increasing the volume of an air chamber. Further, the second compensation mechanism moves an intermediate element from an intermediate reference position to an intermediate element moving position and moves a striking element to the second side, thereby compensating the volume of the air chamber.Type: GrantFiled: May 18, 2016Date of Patent: December 10, 2019Assignee: MAKITA CORPORATIONInventors: Hajime Takeuchi, Masanori Furusawa
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Publication number: 20190118361Abstract: A rotary tool includes a motor, a final output shaft, a housing, a detecting mechanism, an interrupting mechanism and a solenoid. The motor includes a motor body and a motor shaft. The final output shaft is configured to be rotationally driven by torque transmitted from the motor shaft. The housing houses the motor and the final output shaft. The detecting mechanism is configured to detect a motion state of the housing. The interrupting mechanism is provided on a transmission path of the torque from the motor shaft to the final output shaft, and configured to interrupt transmission of the torque. The solenoid includes a linearly movable actuation part and is configured to mechanically actuate the interrupting mechanism via the actuation part based on the motion state of the housing detected by the detecting mechanism.Type: ApplicationFiled: October 11, 2018Publication date: April 25, 2019Applicant: MAKITA CORPORATIONInventors: Hajime TAKEUCHI, Masanori FURUSAWA