Patent ID: 6921623

Claim:
An active component for use in combination with a photosensitizer comprising a photosensitive resin composition, wherein the active component comprises at least one member selected from the group consisting of (a) an active metal alkoxide represented by the following formula (1): (X) m-n -M m -[(U 1 ) p —(U 2 -Z) t ] n (1) wherein, X represents a hydrogen atom, a halogen atom, an alkoxy group or an alkoxycarbonyl group, M represents a metal atom whose valence m is not less than 2, U 1 represents a first connecting unit, U 2 represents a second connecting unit, Z represents a group causing a difference in solubility by light exposure, n represents an integer of not less than 1 with m>n, p represents 0 or 1, and t represents an integer of not less than 1, wherein the unit (U 1 ) p —(U 2 -Z) t in the formula (1) is represented by the following formula (3): [(R 1 ) q —(B) r ] p —[{(R 2 ) u —(Ar) v }-Z] t (3) wherein R 1 and R 2 , is either the same or different, representing an alkylene group or an alkenylene group, B represents an ester bond, a thioester bond, an amide bond, a urea bond, a urethane bond, a thiourethane bond, an imino group, a sulfur atom or a nitrogen atom, Ar represents an arylene group or a cycloalkylene group, r and p are each 1; q, u, and v are each either 0 or 1; and q+r+u+v≧1, and t has the same meanings defined above; or a polycondensate thereof, and (b) a particle represented by the following formula (2): P—[(Y) s -{(U 1 ) p —(U 2 -Z) t }] k (2) wherein P represents a fine particle carrier, Y represents a coupling residue, k represents an integer of not less than 1, s represents 0 or 1, and U 1 , U 2 , Z, p and t have the same meanings defined above.