(JP10507573-W)      The separator is used in fuel cell stacks (1) which have stacked separator/membrane, electrode assembly cells, in which the separators comprise a series of thin sheet platelets (30-1..30-7). Each platelet has individually configured serpentine micro-channel reactant gas humidification (35,40), active area (25) and cooling fields.    The individual platelets are stacked with co-ordinate features precisely aligned and bonded to form a monolithic separator. The preferably material for the platelets is 4-25 mil Titanium in which the features are formed by chemical, laser etching etc. with combinations of depth and through etching.    ADVANTAGE -   Gives improved outputs and eases mfr. and permits easier introduction of change in design feature to accommodate range of thermal and humidification parameters.    (US5858567-A)      The separator is used in fuel cell stacks (1) which have stacked separator/membrane, electrode assembly cells, in which the separators comprise a series of thin sheet platelets (30-1..30-7). Each platelet has individually configured serpentine micro-channel reactant gas humidification (35,40), active area (25) and cooling fields.    The individual platelets are stacked with co-ordinate features precisely aligned and bonded to form a monolithic separator. The preferably material for the platelets is 4-25 mil Titanium in which the features are formed by chemical, laser etching etc. with combinations of depth and through etching.    ADVANTAGE -   Gives improved outputs and eases mfr. and permits easier introduction of change in design feature to accommodate range of thermal and humidification parameters.    (US5863671-A)      The separator is used in fuel cell stacks (1) which have stacked separator/membrane, electrode assembly cells, in which the separators comprise a series of thin sheet platelets (30-1..30-7). Each platelet has individually configured serpentine micro-channel reactant gas humidification (35,40), active area (25) and cooling fields.    The individual platelets are stacked with co-ordinate features precisely aligned and bonded to form a monolithic separator. The preferably material for the platelets is 4-25 mil Titanium in which the features are formed by chemical, laser etching etc. with combinations of depth and through etching.    ADVANTAGE -   Gives improved outputs and eases mfr. and permits easier introduction of change in design feature to accommodate range of thermal and humidification parameters.    (US6051331-A)      The separator is used in fuel cell stacks (1) which have stacked separator/membrane, electrode assembly cells, in which the separators comprise a series of thin sheet platelets (30-1..30-7). Each platelet has individually configured serpentine micro-channel reactant gas humidification (35,40), active area (25) and cooling fields.    The individual platelets are stacked with co-ordinate features precisely aligned and bonded to form a monolithic separator. The preferably material for the platelets is 4-25 mil Titanium in which the features are formed by chemical, laser etching etc. with combinations of depth and through etching.    ADVANTAGE -   Gives improved outputs and eases mfr. and permits easier introduction of change in design feature to accommodate range of thermal and humidification parameters.