Abstract: A fuel cell system including a fuel cell stack having stacked cells for generating electricity by an electrochemical reaction between a fuel gas and an oxidizing gas and held between a pair of end plates arranged at both ends in the stacking direction of the cells, and also including a gas-liquid separator for separating a gas and a liquid of an off-gas discharged from the fuel cell stack, wherein the gas-liquid separator is fixed to the end plate. Exhaust heat of the fuel cell stack is effectively used to heat the gas-liquid separator.

Abstract: An object of the present invention is to provide a fuel cell system capable of raising the temperature of a discharge valve and restraining the discharge valve from freezing by a simple structure. The fuel cell system has a circulation system for circulating hydrogen off gas, which is discharged from a fuel cell, to the fuel cell, an exhaust/drain valve for discharging a fluid passing through the circulation system to the outside, and a refrigerant flow path through which a refrigerant, which is circulated to the fuel cell, flows. The exhaust/drain valve has a valve body provided with a flow path which interconnects the interior of the circulation system and the outside. A part of the refrigerant flow path is provided by penetrating the valve body so as to be independent of the flow path.

Abstract: A mobile terminal 4 sends updating history data to a communication apparatus 1 when the user of the terminal 4 turns on the power supply, when the user reads an information dial service menu, or when a preselected period of time elapses. With the updating history data, the terminal 4 inquires the communication apparatus 1 whether or not the information dial service menu stored in the terminal 4 has been altered. In response, the communication apparatus 1 compares a date of updating included in the received updating history data and the date of updating of an information dial service menu stored therein. If the received date of updating is earlier than the stored date of updating, the communication apparatus 1 sends data including the latest information dial service to the terminal 4. The terminal 4 replaces the menu stored therein with the latest menu received from the communication apparatus 1.