Sumitomo Rubber Industries Ltd. (TYO:5110) has announced plans for an Aug. 1 launch of the Winter Maxx SJ8+, a new studless winter tire for SUVs. The tire is set to come in 54 sizes, marking an increase of 16 from its predecessor, the Winter Maxx SJ8. The Winter Maxx SJ8+ employs the nano-texturing technology previously used in the Winter Maxx…