NTT DoCoMo and Aquafairy to Develop Micro Polymer Electrolyte Fuel Cell for FOMA Handsets

JCN Newswires, July 14, 2006

Tokyo, Japan, July 14, 2006 - (JCN Newswire) - NTT DoCoMo, Inc. and Aquafairy Co. announced today that they agreed to jointly develop a micro fuel cell for 3G FOMA(TM) handsets. This agreement follows their successful development of a polymer electrolyte fuel cell (PEFC) that has proven effective in a prototype recharger.

The fuel cell is the smallest in the world with power output of 2 watts as of July 14. The recharger combines DoCoMo's recharger technology with Aquafairy's thin film power unit technology and catalyst for producing hydrogen from water. The simple hydrogen-producing mechanism and power units make the recharger less than one-fourth the size and more than twice as powerful as the methanol fuel cell prototype that DoCoMo unveiled on July 6, 2005. The easily portable recharger can charge a handset several times, and the recharging time is approximately the same as an AC adapter.

Demands for power consumption have risen with new FOMA services and features. To meet these demands, DoCoMo has worked on increasing the capacity of lithium-ion batteries, the most common battery in handsets today, and developed a direct methanol fuel cell recharger. Now, the company is also exploring the possibilities of PEFCs, which have higher power density than methanol cells and less environmental impact since they convert water into hydrogen.

DoCoMo will exhibit the recharger at its booth at Wireless Japan 2006 from July 19 to 21.

About NTT DoCoMo

NTT DoCoMo is the world's leading mobile communications company, serving more than 50 million customers. The company offers a wide variety of cutting-edge mobile multimedia services, including i-mode, which provides e-mail and Internet access to over 45 million subscribers as the world's most popular mobile Internet service, and FOMA, launched in 2001 as the world's first 3G mobile service based on W-CDMA. In addition to wholly owned subsidiaries in Europe, North America and Asia, the company is expanding its global reach through strategic alliances with mobile and multimedia service providers in Asia-Pacific and Europe. NTT DoCoMo is listed on the Tokyo (9437), London (NDCM) and New York (DCM) stock exchanges. For more information, visit www.nttdocomo.com.

Source: NTT DoCoMo

Contact:

NTT DoCoMo, Inc.
Eijun Tanaka
Assistant Manager,
International Public Relations Group
Inquiries: http://www.nttdocomo.com/inquiry

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