Abstract: A laminated coil component includes: an element body having a first surface and a second surface facing each other in a first direction; a coil unit formed by laminating a plurality of coil conductors in a second direction orthogonal to the first direction inside the element body; a first lead-out conductor; and a second lead-out conductor. A first coil conductor adjacent to the first lead-out conductor in the second direction includes a first side portion extending along the first surface, on a first surface side. A second coil conductor adjacent to the second lead-out conductor in the second direction includes a second side portion extending along the second surface, on a second surface side. The first side portion has a larger line width than other side portions of the first coil conductor and the second side portion.

Abstract: Provided is a battery pack in which the voltage of each battery cell is monitored using an inexpensive general-purpose microcomputer. A battery pack comprises: a plurality of battery cells connected in series; a plurality of voltage detection units which detect the voltage of each of the battery cells; and a microcomputer which measures the voltages of the battery cells from the output of each of the voltage detection units. Switch control circuits for switching on or off the outputs from the voltage detection units to the microcomputer are respectively arranged on each of the voltage detection units. Voltage divider circuits dividing the detected voltages into voltages lower than or equal to the power supply voltage of a control unit are arranged on the output sides of the voltage detection units. The microcomputer inputs the voltages divided by the voltage divider circuits and measures the voltages of the battery cells.

Abstract: Provided is a battery pack in which the voltage of each battery cell is monitored using an inexpensive general-purpose microcomputer. A battery pack comprises: a plurality of battery cells connected in series; a plurality of voltage detection units which detect the voltage of each of the battery cells; and a microcomputer which measures the voltages of the battery cells from the output of each of the voltage detection units. Switch control circuits for switching on or off the outputs from the voltage detection units to the microcomputer are respectively arranged on each of the voltage detection units. Voltage divider circuits dividing the detected voltages into voltages lower than or equal to the power supply voltage of a control unit are arranged on the output sides of the voltage detection units. The microcomputer inputs the voltages divided by the voltage divider circuits and measures the voltages of the battery cells.

Abstract: Provided is an electric device, power device, electric device system, and management device capable of providing a theft prevention function that requires less effort as compared to the prior art. A power tool comprises a main power tool unit, and a battery pack 4 which can be attached to and removed from the main power tool unit. The main power tool unit and the battery pack each have a storage means for storing at least one authentication code and a communication means for transmitting and receiving the authentication code, and permit use when an authentication code received via the communication means matches at least one of the authentication codes stored in the storage means, and do not permit use when said authentication code does not match any of the authentication codes. The authentication code is set by a management device which is an external device.

Abstract: A solar radiation shielding member includes a low radiation film sheet having a first dielectric film, a first metal film, a second dielectric film, a second metal film, a third dielectric film, a third metal film and a fourth dielectric film laminated in order of mention on a transparent substrate. The first dielectric film has: a dielectric layer A arranged directly above the transparent substrate and containing silicon and nitrogen; and a dielectric layer B arranged on the dielectric layer A and containing titanium and oxygen. The dielectric layer A has an optical thickness of 12 to 86 nm. The first, second and third dielectric films have respective crystalline dielectric layers as top layers thereof. The crystalline dielectric layers each have an optical thickness of 5 to 54 nm. The first, second and third metal films are Ag films directly below which the crystalline dielectric layers are arranged, respectively.

Abstract: The object of the invention is to obtain a solar radiation shielding member that has a good visible light transmittance and shows no redness when viewed from the front and when obliquely viewed, without impairing the solar radiation transmittance. A solar radiation shielding member, wherein a first dielectric film, a first metal film, a second dielectric film, a second metal film, a third dielectric film, a third metal film, and a fourth dielectric film are stacked on a transparent substrate; the first dielectric film comprises at least two dielectric layers containing a layer having a refractive index of 2.4 or greater, and the first dielectric film as a whole has a refractive index in a range of 1.8-2.

Abstract: In order to enable easy determination of whether a battery pack possessed by a user is one to be guaranteed or not and clearly differentiate an old battery pack from a new battery pack not to allow the old battery pack to be used in the field, when a battery diagnosis device determines that the battery pack is one to be guaranteed, information held by the diagnosed battery pack is written into a second battery pack different from the diagnosed battery pack.

Abstract: Provided is an electric device, power device, electric device system, and management device capable of providing a theft prevention function that requires less effort as compared to the prior art. A power tool comprises a main power tool unit, and a battery pack 4 which can be attached to and removed from the main power tool unit. The main power tool unit and the battery pack each have a storage means for storing at least one authentication code and a communication means for transmitting and receiving the authentication code, and permit use when an authentication code received via the communication means matches at least one of the authentication codes stored in the storage means, and do not permit use when said authentication code does not match any of the authentication codes. The authentication code is set by a management device which is an external device.

Abstract: The failure diagnosis system is provided with an electric tool 1, and a diagnosis device 100 that can be connected with the electric tool 1. The diagnosis device 100 reads the usage history information of the electric tool 1 from the electric tool 1 to which the diagnosis device 100 has been connected, estimates a failure part of the electric tool 1 on the basis of the usage history information, and reports information indicating the failure part. The usage history information includes at least one of the motor operation time, the number of operations of a motor driving switch, the power supply voltage, a motor current, the motor temperature, the temperature of a motor driving circuit, whether or not the motor can be driven, the presence or absence of a high-temperature abnormality, the presence or absence of an overcurrent abnormality, and the presence or absence of an overvoltage abnormality.

Abstract: The object of the invention is to obtain a solar radiation shielding member that has a good visible light transmittance and shows no redness when viewed from the front and when obliquely viewed, without impairing the solar radiation transmittance. A solar radiation shielding member, wherein a first dielectric film, a first metal film, a second dielectric film, a second metal film, a third dielectric film, a third metal film, and a fourth dielectric film are stacked on a transparent substrate; the first dielectric film comprises at least two dielectric layers containing a layer having a refractive index of 2.4 or greater, and the first dielectric film as a whole has a refractive index in a range of 1.8-2.

Abstract: A power tool includes: a secondary battery; a drive unit; a detecting unit; and a control unit. The secondary battery has positive and negative terminals across which a battery voltage is developed. The drive unit is connected to the secondary battery. The detecting unit is configured to detect a current value and a voltage value supplied from the secondary battery to the drive unit. The control unit is configured to control an effective voltage and an effective current applied to the drive unit depending on a load imposed thereon to fall within an allowable power dissipation value.

Abstract: A power-supplying device includes a terminal, a rechargeable battery, a first shutdown circuit, and a second shutdown circuit. The terminal is configured to be connected to a power tool. The rechargeable battery is configured to output electrical power to the power tool via the terminal. The first shutdown circuit is positioned at a plus side of the rechargeable battery, the first shutdown circuit being configured to shutdown output of the rechargeable battery. The second shutdown circuit is positioned at a minus side of the rechargeable battery. The second shutdown circuit is configured to shutdown output of the rechargeable battery.

Abstract: In order to enable easy determination of whether a battery pack possessed by a user is one to be guaranteed or not and clearly differentiate an old battery pack from a new battery pack not to allow the old battery pack to be used in the field, when a battery diagnosis device determines that the battery pack is one to be guaranteed, information held by the diagnosed battery pack is written into a second battery pack different from the diagnosed battery pack.

Abstract: An electric working machine including: a motor; a control unit configured to control rotation of the motor; a fixed part provided with a handle having a grip portion; a movable part held by the fixed part and is configured to be extendible by sliding relative to the fixed part; and a cutting blade provided to a end portion of the movable pipe and is configured to be driven by the motor; characterized in that the electric working machine further includes a detection unit which is connected to the control unit and is configured to detect whether or not the movable part is positioned at a predetermined extended position relative to the fixed part.

Abstract: An electric working machine including: a motor; a driving unit configured to be driven by the motor; a trigger switch configured to allow rotation of the motor; a power supply unit configured to supply electric power to the motor; and a control unit configured to control rotation of the motor, characterized in that: the electric working machine further comprises a switching element configured to perform short-circuiting between terminals of the motor to apply electronic braking, wherein the control unit is configured to perform adjustment of the braking by controlling the switching element when stopping the motor.

Abstract: A power tool system includes: a power tool including an AC motor; a portable battery pack; and a power supply device that converts a DC power supplied from the portable battery pack into an AC power to supply the AC power to the AC motor.

Abstract: An electric working machine including: a motor; a control unit configured to control rotation of the motor; a fixed part provided with a handle having a grip portion; a movable part held by the fixed part and is configured to be extendible by sliding relative to the fixed part; and a cutting blade provided to a end portion of the movable pipe and is configured to be driven by the motor; characterized in that the electric working machine further includes a detection unit which is connected to the control unit and is configured to detect whether or not the movable part is positioned at a predetermined extended position relative to the fixed part.

Abstract: A power-supplying device includes a terminal, a rechargeable battery, a first shutdown circuit, and a second shutdown circuit. The terminal is configured to be connected to a power tool. The rechargeable battery is configured to output electrical power to the power tool via the terminal. The first shutdown circuit is positioned at a plus side of the rechargeable battery, the first shutdown circuit being configured to shutdown output of the rechargeable battery. The second shutdown circuit is positioned at a minus side of the rechargeable battery. The second shutdown circuit is configured to shutdown output of the rechargeable battery.

Abstract: A charging device (100) having charging means (80, 90) for charging a secondary battery used in an electric tool, and control means (140) for controlling the charging means. The control means acquires rated charging voltage information indicating the rated charging voltage of battery cells (11) of the secondary battery, which is configured of a plurality of battery cells. The control means sets a target voltage of the secondary battery on the basis of the rated charging voltage information. And the control means controls the charging means so that the secondary battery reaches the target voltage.

Abstract: In a backpack-type power supply, a case accommodates the rechargeable battery. An output terminal is electrically connected to the rechargeable battery. A switching element is electrically connected between the rechargeable battery and the output terminal. A main power switch is electrically connected between the rechargeable battery and the switching element. The processing unit is electrically connected between the switching element and the main power switch to be powered by the rechargeable battery when the main power switch is ON.