Honda Motor Co., Ltd.

Hidehumi Kuramitsu

Shinya Watanabe

Kazuyuki Takahashi

Naoaki Takeda

Eri Terada

Naokazu Kawase

Shinya Abe

Yoshihiro Okada

Tomohito Kotake

A fuel cell includes sensors. Each sensor includes: a sensor portion provided on at least one of separators, a frame member, and an electrolyte membrane; and a wiring portion connected to the sensor portion and extending to an outer peripheral portion of one of the separators or an outer peripheral portion of a membrane electrode assembly. The sensor further includes a base insulating film covering a sensor arrangement region; wiring patterns laminated on the base insulating film; and a covering insulating film covering the wiring patterns and portions of the base insulating film not covered with the wiring patterns.

Fuel cell

An internal combustion engine includes an engine main body defining a cylinder bore, a piston received in the cylinder bore, and a crankshaft rotatably supported by the engine main body and connected with the piston via a connecting rod, the piston including a skirt. The cylinder bore includes a first region defined as a range along the cylinder axial line on a side of a top dead center from a first piston position, and a second region defined as a range along the cylinder axial line on a side of the bottom dead center from a second piston position closer to the bottom dead center than the first piston position, and a connection region positioned between the first and second regions. A diameter of the cylinder bore is smaller in the first region than in the second region, and the connection region connects the first and second regions smoothly.

Internal combustion engine

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Wako, Japan

Hidehumi Kuramitsu