(JP11242962-A)   NOVELTY - A fuel cell system has: one or more fuel cells which each have an anode (13), a cathode (11) and an electrolytic membrane (12) which is located between the anode and cathode; a first gas supply device (22) to supply a gas to the anode that has fuel gas; a second gas supply device (31) to supply a gas to the cathode that has oxygen; and supply devices (41) for water to supply water over a surface of the cathode.    USE - None given    ADVANTAGE - The cell is capable of keeping a proton exchange membrane in a damp state.    (JP11317235-A)   NOVELTY - A fuel cell system has: one or more fuel cells which each have an anode (13), a cathode (11) and an electrolytic membrane (12) which is located between the anode and cathode; a first gas supply device (22) to supply a gas to the anode that has fuel gas; a second gas supply device (31) to supply a gas to the cathode that has oxygen; and supply devices (41) for water to supply water over a surface of the cathode.    USE - None given    ADVANTAGE - The cell is capable of keeping a proton exchange membrane in a damp state.    (JP11317236-A)   NOVELTY - A fuel cell system has: one or more fuel cells which each have an anode (13), a cathode (11) and an electrolytic membrane (12) which is located between the anode and cathode; a first gas supply device (22) to supply a gas to the anode that has fuel gas; a second gas supply device (31) to supply a gas to the cathode that has oxygen; and supply devices (41) for water to supply water over a surface of the cathode.    USE - None given    ADVANTAGE - The cell is capable of keeping a proton exchange membrane in a damp state.    (JP11317238-A)   NOVELTY - A fuel cell system has: one or more fuel cells which each have an anode (13), a cathode (11) and an electrolytic membrane (12) which is located between the anode and cathode; a first gas supply device (22) to supply a gas to the anode that has fuel gas; a second gas supply device (31) to supply a gas to the cathode that has oxygen; and supply devices (41) for water to supply water over a surface of the cathode.    USE - None given    ADVANTAGE - The cell is capable of keeping a proton exchange membrane in a damp state.    (EP1052717-A1)   NOVELTY - A fuel cell system has: one or more fuel cells which each have an anode (13), a cathode (11) and an electrolytic membrane (12) which is located between the anode and cathode; a first gas supply device (22) to supply a gas to the anode that has fuel gas; a second gas supply device (31) to supply a gas to the cathode that has oxygen; and supply devices (41) for water to supply water over a surface of the cathode.    USE - None given    ADVANTAGE - The cell is capable of keeping a proton exchange membrane in a damp state.