To provide an on-vehicle catalytic body the photocatalytic activity, deodorization rate, or the like, of which are improved so that a malodorous component or a harmful substance in a car can be removed/decomposed quickly.
This on-vehicle catalytic body is provided with: a structure 1 containing a substance having photocatalysis; an irradiating means 4 for irradiating the structure 1 with ultraviolet-containing light; an air sending means 3 for sending air to the structure 1; and a heat storage material 2 for supplying the stored heat to the photocatalyst of the structure. As a result, the heat of the sun shining in the car is stored in the heat storage material 2 and the stored heat is supplied to the photocatalyst to improve the photocatalytic activity, deodorization rate, or the like, of this on-vehicle catalytic body so that the malodorous component or the harmful substance in the car can be removed/decomposed quickly.
NOMURA YUKIO
Tomoyasu Sakaguchi
Hiroki Naito