Hitachi Data Systems Chief Scientist Claus Mikkelsen to Present at ThinkEquity Partners "I've Got the Power" Data Center Day

Business Wire, Feb 12, 2007

SANTA CLARA, Calif. -- Hitachi Data Systems (NYSE: HIT):

WHO:    Claus Mikkelsen, chief scientist, Hitachi Data Systems
        Corporation, a wholly owned subsidiary of Hitachi, Ltd.
        (NYSE: HIT)

WHAT:   ThinkEquity Partners "I've Got the Power" Data Center Day

WHEN:   Thursday, February 15, at 1:00 p.m. Pacific Standard Time

WHERE:  Four Season Hotel
        2050 University Avenue
        East Palo Alto, California 94303
        (Advance registration with ThinkEquity Partners is required)

About Hitachi Data Systems

Hitachi Data Systems leverages global R&D resources to develop storage solutions built on industry-leading technology with the performance, availability and scalability to maximize customers' ROI and minimize their risk. By focusing on the customer's perspective as we apply the best hardware, software, and services from Hitachi and our partners, we uniquely satisfy our customers' business needs. With approximately 3,200 employees, Hitachi Data Systems conducts business through direct and indirect channels in the public, government and private sectors in over 170 countries and regions. Its customers include more than 50 percent of Fortune 100 companies. For more information, please visit our Web site at http://www.hds.com.

About Hitachi, Ltd.

Hitachi, Ltd., (NYSE: HIT)(TSE: 6501), headquartered in Tokyo, Japan, is a leading global electronics company with approximately 356,000 employees worldwide. Fiscal 2005 (ended March 31, 2006) consolidated sales totaled 9,464 billion yen ($80.9 billion). The company offers a wide range of systems, products and services in market sectors including information systems, electronic devices, power and industrial systems, consumer products, materials and financial services. For more information on Hitachi, please visit the company's website at http://www.hitachi.com.

[c] 2007, Hitachi Data Systems Corporation. Hitachi Data Systems is registered with the U.S. Patent and Trademark Office as a trademark and service mark of Hitachi, Ltd. All other trade names, trademarks, and service marks used herein are the rightful property of their respective owners.