Hitachi Metals, Ltd.

Shimano Inc.

Kei Matsumoto

Kazuhiro Nishikawa

Takeshi Shimada

Kazuya Toji

Koichi Terao

Takeshi Ueda

Satoshi Fujii

Shota Suyama

Toshiaki Moriya

A component for a human-powered vehicle basically comprises a power source connecting portion, an actuator and a first electronic controller circuitry. The power source connecting portion is connected to a power source. The power source connecting portion includes an attachment surface, a first terminal and a first detection terminal. The actuator is electrically connected to the power source connecting portion. The first electronic controller circuitry controls the actuator with supply current provided from the power source. The first terminal is electrically connected to a power supply terminal of the power source. The first terminal supplies the supply current to the actuator in a state where the first detection terminal is electrically connected to a second detection terminal of the power source. The first detection terminal contacts to the second detection terminal after the first terminal contacts to the power supply terminal during connecting operation of the power source to the power source connecting portion.

Component for human-powered vehicle

The invention intends to provide, in BaTiOsemiconductor porcelain composition, a semiconductor porcelain composition that, without using Pb, can shift the Curie temperature to a positive direction and can significantly reduce the resistivity at room temperature. According to the invention, when Ba is partially substituted by an A1 element (at least one kind of Na, K and Li) and an A2 element (Bi) and Ba is further substituted by a specific amount of a Q element, or when Ba is partially substituted by an A1 element (at least one kind of Na, K and Li) and an A2 element (Bi) and Ti is partially substituted by a specific amount of an M element, the optimal valence control can be applied and whereby the resistivity at room temperature can be significantly reduced. Accordingly, it is optimal for applications in a PTC thermistor, a PTC heater, a PTC switch, a temperature detector and the like, and particularly preferably in an automobile heater.

Semiconductor porcelain composition

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Osaka, Japan

Kei Matsumoto