Abstract: An 18V power tool having one 18V battery pack attachable thereto and a 36V power tool having two 18V battery packs attachable thereto are housed in a tool case and sold as a set or kit. Two or more battery packs and/or a charger may also be included in the set, and sold therewith. A tool case may be used to house and carry the power tools, as well as the battery packs and/or charger, if provided. Sales systems for selling such power tools are also disclosed.

Abstract: A power supply device includes battery interfaces configured to removably receive at least three batteries and a connection circuit configured to electrically connect the at least three batteries to each other. The connection circuit is capable of connecting at least two batteries in parallel and connecting at least one other battery to the at least two parallel-connected batteries in series. According to this power supply device, it is possible to supply high power to an electric device by connecting the batteries in series. In addition, it is possible to supply almost all of the electric power stored in the batteries to the electric device, even if amount of the remaining electric power in each battery is substantially uneven.

Abstract: An electric wheeled apparatus comprises a main body, at least one wheel supported by the main body in a rotatable manner; an electric motor configured to apply torque to the at least one wheel, a battery interface configured to removably receive at least one battery pack which is originally designed as a power source of an electric power tool, and an electric circuit unit configured to electrically connect the at least one battery pack attached to the battery interface with the electric motor.

Abstract: An electric wheeled apparatus comprises a main body, at least one wheel supported by the main body in a rotatable manner; an electric motor configured to apply torque to the at least one wheel, a battery interface configured to removably receive at least one battery pack which is originally designed as a power source of an electric power tool, and an electric circuit unit configured to electrically connect the at least one battery pack attached to the battery interface with the electric motor.

Abstract: A method of assembling semiconductor devices includes dispensing a metal paste including metal particles in a solvent onto a bonding area of a plurality of metal terminals of a leadframe. The dispensing provides a varying thickness over the bonding area. The solvent is evaporated to form a sloped metal coating including a first sloped top face and a second sloped top face. The first sloped top face is closer to the die pad compared to the second sloped top face, the second sloped top face increases in coating thickness with decreasing distance to the die pad, and the first sloped top face decreases in coating thickness with decreasing distance to the die pad. A bottom side of semiconductor die including a plurality of top side bond pads is attached to the die pad. Bond wires are connected between the bond pads and the second sloped top faces.

Abstract: A battery charger includes telephone handset and a connector for connecting with a cellular phone. A sound signal can be transmitted between the telephone handset and the cellular phone via the connector.

Abstract: A rechargeable battery type electric power tool is widely used for a construction work or a horticultural work. A battery of the electric power tool can also be used as a power source of an electric apparatus. Because of this construction, there is provided the electric apparatus that has a function equivalent to that of an AC power source type apparatus.

Abstract: A power supply device includes battery interfaces configured to removably receive at least three batteries and a connection circuit configured to electrically connect the at least three batteries to each other. The connection circuit is capable of connecting at least two batteries in parallel and connecting at least one other battery to the at least two parallel-connected batteries in series. According to this power supply device, it is possible to supply high power to an electric device by connecting the batteries in series. In addition, it is possible to supply almost all of the electric power stored in the batteries to the electric device, even if amount of the remaining electric power in each battery is substantially uneven.

Abstract: A battery charger includes telephone handset and a connector for connecting with a cellular phone. A sound signal can be transmitted between the telephone handset and the cellular phone via the connector.

Abstract: An electric wheeled apparatus comprises a main body, at least one wheel supported by the main body in a rotatable manner; an electric motor configured to apply torque to the at least one wheel, a battery interface configured to removably receive at least one battery pack which is originally designed as a power source of an electric power tool, and an electric circuit unit configured to electrically connect the at least one battery pack attached to the battery interface with the electric motor.

Abstract: When the SIR of the received signal is larger than the SIR upper limit, threshold determining section 105 outputs an instruction for decreasing the transmit power to control bit generating section 106. Further, when the SIR is smaller than the SIR lower limit, threshold determining section 105 outputs an instruction for increasing the transmit power to control bit generating section 106. When the SIR of the received signal is equal to or smaller than the SIR upper limit and equal to or larger than the SIR lower limit, threshold determining section 105 outputs the determined result to control bit generating section 106.