Aside from the economic impact of its various military facilities, Yokosuka is also an industrial city, with factories operated by Nissan Motors and its affiliated subsidiaries employing thousands of local residents. The Nissan Maxima and Infiniti G20 are assembled in the 520,000 square metre Oppama plant in Yokosuka. The plant has been said to have played a significant role in Nissan�s revival with its one car per minute output and quick four day reconfiguration between assembly of various autos. The plant is adjacent to Nissan's Research and Development Center, the Oppama Proving Ground and the Oppama Wharf, from which Nissan ships vehicles made at Oppama and Nissan�s other two Japanese vehicle assembly plants to other regions of Japan and overseas to other global markets.
The Yokosuka Research Park, established in 1997, is a major center for the Japanese telecommunications industry, and is where many of the wireless, mobile communications related companies have set up their research and development centers and joint testing facilities
