Patent ID: 7521629

Claim:
An oxynitride thermoelectric material, which has an element composition represented by the following formula (A): Al z Ga y In x M u R v O s N t (A) wherein M represents a transition element; R represents a rare earth element; 0≦z≦0.7, 0.1≦y≦0.3, 0.2≦x≦0.9, 0≦u≦0.7, 0≦v≦0.05, 0.9≦s+t≦1.7 so that the element composition is an oxynitride, and 0.4≦s≦1.2; and x+y+z=1, and has an absolute value of a Seebeck coefficient of 40 μV/K or more at a temperature of 100° C. or more.