How does the Hanshin Industrial Zone relate to the Keihanshin Industrial Zone?

The Hanshin Industrial Zone and the Keihanshin Industrial Zone are both non-political industrial regions in Japan, with the former serving as a core component of the latter.12

The Hanshin Industrial Zone is centered on the cities of Osaka and Kobe. As the urban area expanded along the Inland Sea and northeast toward Kyoto, this smaller industrial zone became integrated into the larger Keihanshin Industrial Zone.21

While the Hanshin area represents the immediate Osaka-Kobe metropolitan area, the Keihanshin Industrial Zone encompasses a broader region that includes Osaka, portions of Kyoto, and the prefectures of Hyogo and Shiga. Historically, this entire region was the most industrialized and economically advanced part of Japan until the post-World War II era.123