Tokyo Printing City Cooperative is founded
In 1981 the Tokyo Printing City Cooperative was founded as Tokyo's first printing industrial estate.
Wikipedia's article on Shiomi (Kōtō) says: "Founded 1981. Tokyo's first printing industrial estate." (no source is cited). The 2008 Shiomi district town-planning policy states that printing works are concentrated west of Shiomi Station.
Places
Sources
Confirmed in Wikipedia text