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Fujitsu and Fujitsu Network Communications File Patent Infringement Lawsuit against Tellabs

- Lawsuit asserts that Tellabs' products infringe four optical communications patents held by Fujitsu -

Fujitsu Limited,Fujitsu Network Communications Inc.

Tokyo, January 30, 2008

Fujitsu Limited and Fujitsu Network Communications, Inc. ("Fujitsu") announced today that they filed a patent infringement lawsuit on January 29, 2008 (U.S. time) against Tellabs, Inc. and Tellabs Operations, Inc. ("Tellabs") in the United States District Court for the Eastern District of Texas. Fujitsu seeks monetary damages and an injunction against Tellabs' future infringement of Fujitsu's patents.

In its complaint, Fujitsu asserts that Tellabs' products infringe four of Fujitsu's U.S. patents covering optical communication technologies. The accused products include the Tellabs 7100 Optical Transport System, Tellabs 5500 series and Tellabs 6300 series. The complaint follows numerous attempts by Fujitsu to engage in cooperative discussions with Tellabs in order to resolve Tellabs' infringement activities. Since a cooperative resolution could not be reached, Fujitsu determined that litigation was necessary in order to protect Fujitsu's rights and the value of its intellectual property.

"Fujitsu has been investing heavily for years in research and development and owns approximately 10,000 patents in the field of optical communications around the world," said Masanobu Katoh, corporate vice president and president of the Law & Intellectual Property Unit of Fujitsu Limited. "In this field, Fujitsu is a leader and has patents that are important to optical communication technologies such as Synchronous Optical Networking (SONET), Synchronous Digital Hierarchy (SDH), and Dense Wavelength Division Multiplexing (DWDM). We consider our intellectual property to be valuable company assets and are committed to protecting and enforcing them."

About Fujitsu

Fujitsu is a leading provider of customer-focused IT and communications solutions for the global marketplace. Pace-setting device technologies, highly reliable computing and communications products, and a worldwide corps of systems and services experts uniquely position Fujitsu to deliver comprehensive solutions that create infinite possibilities for its customers' success. Headquartered in Tokyo, Fujitsu Limited (TSE:6702) reported consolidated revenues of 5.1 trillion yen (US$43.2 billion) for the fiscal year ended March 31, 2007. For more information, please see:

About Fujitsu Network Communications

Fujitsu Network Communications Inc. is an innovator and strategic partner with over 20 years of experience as a leading provider of wireline and wireless networking solutions that solve critical business issues and enable new services. With the support of Fujitsu Limited (TSE:6702), a company with over 160,000 professionals in more than 100 countries, Fujitsu enables their customers to build or seamlessly migrate to fully converged networks that improve network performance and profitability. Nearly 400,000 Fujitsu network elements have been deployed by all major carriers across North America. Fujitsu maintains a well-established and highly-regarded position as a market leader by providing the best-in-breed data networking solutions that drive next-generation access, core, and wireless networks. For more information, please visit

Press Contacts

Public and Investor Relations Division

Company:Fujitsu Limited

Press Contacts

Bob Laurent
Richardson, TX, USA

Phone: Phone: (972) 479-3480
E-mail: E-mail:
Company:Fujitsu Network Communications, Inc.

Company and product names referenced herein are trademarks or registered trademarks of their respective owners. Information provided in this press release is accurate at time of publication and is subject to change without advance notice.

Date: 30 January, 2008
City: Tokyo
Company: Fujitsu Limited, Fujitsu Network Communications Inc., , , ,