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公开(公告)号：US12057719B2
公开(公告)日：2024-08-06
申请号：US17275504
申请日：2019-09-12
Applicant: MAKITA CORPORATION
Inventor： Yoshitaka Ichikawa , Akihiro Nakamoto , Minoru Gyoda , Hayato Kano , Toru Yamada , Hitoshi Suzuki
CPC classification number: H02J7/0029 , H01M10/48 , H02J7/00032 , H02J7/0063 , H02P3/06
Abstract: A battery pack is configured to supply electric power to an electric work machine, such as a power tool or outdoor power equipment. The battery pack includes a first battery-signal terminal and a second battery-signal terminal. The first battery-signal terminal outputs, to the electric work machine, a first signal indicating that discharging is to be prohibited or permitted. The second battery-signal terminal outputs, to the electric work machine, a second signal indicating that discharging is to be prohibited or permitted. Thus, two communication paths are provided for transmitting signals to permit or prohibit discharging of the battery pack.
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公开(公告)号：US12051986B2
公开(公告)日：2024-07-30
申请号：US16715813
申请日：2019-12-16
Applicant: MAKITA CORPORATION
Inventor： Akihiro Nakamoto , Hitoshi Suzuki
CPC classification number: H02P29/0241 , A01D34/006 , A01D34/47 , A01D34/58 , A01D34/84 , A01D34/90 , H02J7/00308 , H02J7/0031 , H02J7/0047 , H02P29/027 , H02P29/68
Abstract: An electric working machine in one aspect of the present disclosure includes a motor, an information output circuit, a control circuit, and a drive stop circuit. The information output circuit outputs state information that indicates a state of the electric working machine. The control circuit executes a motor control process in accordance with a computer program. The drive stop circuit executes a motor stop operation. The motor stop operation includes disabling a permission to drive the motor by the control circuit to stop the motor in response to the state information indicating that the motor should be stopped. The motor stop operation is implemented by hardware.
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公开(公告)号：US11955615B2
公开(公告)日：2024-04-09
申请号：US17550091
申请日：2021-12-14
Applicant: MAKITA CORPORATION
Inventor： Hitoshi Suzuki , Masaaki Fukumoto
IPC: H01M10/61 , H01M10/44 , H01M10/48 , H01M10/615 , H01M10/6235 , H01M50/247 , H01M50/209 , H01M50/271 , H01M50/55 , H01M50/553 , H01M50/566
CPC classification number: H01M10/615 , H01M10/443 , H01M10/486 , H01M10/6235 , H01M50/247 , H01M50/209 , H01M50/271 , H01M50/55 , H01M50/553 , H01M50/566
Abstract: A battery-powered portable tool includes: a battery pack containing at least one all-solid-state battery cell; a tool main body, on which and/or inside which the battery pack is mountable and from which the battery pack is demountable; and a plurality of components contained in the battery pack and/or in the tool main body. The plurality of components is disposed in a first layout or physical configuration when the temperature is low and is disposed in a second layout or physical configuration when the temperature is high. The first layout or physical configuration differs from the second layout or physical configuration.
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公开(公告)号：US11233282B2
公开(公告)日：2022-01-25
申请号：US16884322
申请日：2020-05-27
Applicant: MAKITA CORPORATION
Inventor： Hitoshi Suzuki , Masaaki Fukumoto
IPC: H01M10/48 , H01M10/615 , H01M10/6235 , H01M10/44
Abstract: A battery-powered portable tool (1) and/or a battery pack (174; 174′) connected thereto contain(s) a high-temperature measurement circuit (61, 62, 64; 64-67), a low-temperature measurement circuit (61, 64; 64-66), and a switching apparatus (63; Q 1, Q 2) for selecting and/or outputting a signal from (i) the low-temperature measurement circuit when an output value of the high-temperature measurement circuit enters an abnormal range or (ii) the high-temperature measurement circuit when an output value of the low-temperature measurement circuit enters an abnormal range, which are powered by at least one all-solid-state battery (12, 14, 16, 18) provided in the battery pack. Such an arrangement makes it possible to efficiently make use of the at least one all-solid-state battery that is usable over a wide temperature range, whereby the battery-powered tool becomes usable over a wider temperature range than known battery-powered tools.
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公开(公告)号：US10898041B2
公开(公告)日：2021-01-26
申请号：US16232827
申请日：2018-12-26
Applicant: Makita Corporation
Inventor： Hitoshi Suzuki , Yuki Kawai , Itsuku Kato , Yasutaka Hotta
Abstract: An interlocking adapter in one aspect of the present disclosure includes a current path, an electric load, a switch, and a controller. The controller turns on and off the switch in synchronization with a change of an alternating-current voltage received from an electric outlet of an electric apparatus in response to reception of an interlocking command signal from a working machine so as to supply a load current from the electric outlet to the electric load. The controller turns on and off the switch at a specified ratio of a time every ½ cycle of the alternating-current voltage.
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Patent Agency Ranking
公开(公告)号：US10673106B2
公开(公告)日：2020-06-02
申请号：US15724660
申请日：2017-10-04
Applicant: MAKITA CORPORATION , OKITSUMO INCORPORATED
Inventor： Hitoshi Suzuki , Takashi Toyonaga , Naoshi Kimura
IPC: H01M10/6235 , H01M2/10 , H01M10/613 , H05K7/20 , H01M10/6554 , H01L23/373 , H01M10/6551 , H01M10/46 , H01M10/42 , H02K11/33
Abstract: A device of the present disclosure includes an electronic component, a metal plate, a housing, and a wavelength selective heat radiating member. The metal plate is thermally coupled to the electronic component. The housing houses the electronic component and the metal plate. The wavelength selective heat radiating member is mounted on a surface of the metal plate, so as to face an inner side surface of a specific portion of the housing. The wavelength selective heat radiating member is configured to convert thermal energy from the electronic component into heat radiation having a wavelength that penetrates the specific portion of the housing, and emit the heat radiation toward the inner side surface of the specific portion of the housing.
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公开(公告)号：US20200061726A1
公开(公告)日：2020-02-27
申请号：US16672575
申请日：2019-11-04
Applicant: MAKITA CORPORATION
Inventor： Hitoshi Suzuki
Abstract: A dust collector in one aspect of the present invention comprises a dust collection portion, a communication portion, and an interlock operation control portion. When the communication portion receives an interlock command transmitted from an electric working machine, the interlock operation control portion makes the dust collection portion operate interlocking with the electric working machine. The interlock operation control portion includes a storage portion, in which identification information specific to the electric working machine with which the dust collection portion is to be made to perform the interlock operation is stored.
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8.发明授权公开(公告)号：US10396573B2
公开(公告)日：2019-08-27
申请号：US15689725
申请日：2017-08-29
Applicant: MAKITA CORPORATION
Inventor： Nobuyasu Furui , Hitoshi Suzuki , Masaaki Fukumoto , Takuya Umemura , Kosuke Ito , Hitoshi Sengiku , Shuji Yoshikawa , Tatsuya Nagahama
Abstract: A method for recharging a battery pack (40; 40′) includes attaching a portable charger (120) to a user, which portable charger comprises or is attached to a self-contained power supply (130, 140) and wherein a first charging port (132, 146) of the portable charger is disposed, e.g., on a belt (144) worn by the user, hanging the battery pack on the belt while the battery pack is physically engaged and in electrical communication with a power tool (10; 10′), and initiating a transfer of power from the charger to the battery pack when the first charging port is at least proximal to a second charging port (85, 148) that is in electrical communication with at least one battery cell (50) of the battery pack. A portable charging system capable of performing this method, as well as an adapter for use in performing this method, are also disclosed.
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公开(公告)号：US09647479B2
公开(公告)日：2017-05-09
申请号：US14519684
申请日：2014-10-21
Applicant: MAKITA CORPORATION
Inventor： Tatsuki Mori , Toru Yamada , Shinichi Hira , Hitoshi Suzuki
IPC: H02J7/00 , G06F11/07 , G05B19/05 , G05B19/042 , H02J7/02
CPC classification number: H02J7/007 , G05B19/0428 , G05B19/058 , G05B2219/14086 , G05B2219/24125 , G05B2219/25158 , G06F11/0757 , G06F11/076 , H02J7/0021 , H02J7/0029 , H02J7/0047 , H02J7/0093 , H02J7/027
Abstract: A charging control device includes a control unit and a monitoring unit. The control unit performs at least one of controlling charging to a rechargeable battery and monitoring a state of a rechargeable battery, while outputting a state signal which indicates an operation state of the control unit. The monitoring unit determines whether or not the operation state of the control unit is a predesignated specified operation state based on the state signal outputted from the control unit.
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10.发明申请公开(公告)号：US20170126038A1
公开(公告)日：2017-05-04
申请号：US15402584
申请日：2017-01-10
Applicant: MAKITA CORPORATION
Inventor： Shuji Yoshikawa , Tatsuya Nagahama , Nobuyasu FURUI , Hitoshi Suzuki , Masaaki FUKUMOTO , Takuya UMEMURA , Kosuke ITO
CPC classification number: H02J7/0044 , A41F9/002 , A45F3/14 , A45F2003/142 , A45F2003/144 , A45F2003/146 , B25F5/02 , H02J7/0027 , H02J7/0042 , H02J7/0054
Abstract: A charger for a hand-held power tool includes a power source interface, a charger base and a charging cradle rotatably supported on the charger base. The rotatable charging cradle includes at least two charging output terminals electrically connected to the power source interface. A power tool system includes the charger and the hand-held power tool. A method of charging the power tool system includes contacting charging input terminals of the power tool with the charging output terminals, rotating the charging cradle and the power tool relative to the charging base and supplying charging current to at least one battery cell while the charging cradle and the power tool are allowed to freely swing relative to the charging base.
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