NTT DoCoMo Inc. and Sony Computer Entertainment Inc. said Monday that they and six foreign companies will jointly develop new mobile communications network services that combine DoCoMo's i-mode technology with SCEI's PlayStation video game technology.

DoCoMo and SCEI have separately signed memorandums of understanding with six overseas partners, including AT&T Wireless Group of the United States, Hutchison Telephone Co. of Hong Kong, Hutchison 3G UK Ltd. of Britain, KG Telecommunications Co. of Taiwan, KPN Mobile N.V. of the Netherlands, and Telecom Italia Mobile of Italy.

Under the agreement, DoCoMo and SCEI will make available i-mode and PlayStation technologies and knowhow to the companies so they can develop new services for their home markets, the two said.

A DoCoMo spokesman said the companies have agreed to start feasibility studies on new interfaces for mobile terminals and PlayStation terminals, but declined to go into further detail.