The Port of Tokyo is one of the largest Japanese seaports and one of the largest seaports in the Pacific Ocean basin having an annual traffic capacity of around 100 million tonnes of cargo and 4,500,000 twenty-foot equivalent units.
The port is also an important employer in the area having more than 30,000 employees that provide services to more than 32,000 ships every year.
Wikipedia https://en.wikipedia.org/wiki/Port_of_Tokyo
Coordinates 35°38'33.326" N 139°46'0.327" E