REPEAT/O2Micro Files Patent Infringement Action


SANTA CLARA, Calif. and GEORGE TOWN, Grand Cayman--(BUSINESS WIRE)--Jan. 10, 2003--O2Micro International Limited (Nasdaq:OIIM - News) has filed a patent infringement complaint in the Eastern District of Texas against Sumida Corporation in Japan and Taiwan Sumida Electronics Incorporated in Taiwan.

In a separate patent related action, the Shihlin District Court in Taipei County, Taiwan issued a preliminary injunction prohibiting Monolithic Power Systems, Inc. from designing, manufacturing, selling, importing or displaying MP1011A and MP1015 products.


"O2Micro indicated in its last quarterly conference call that the company would focus on intellectual property protection and take aggressive action against infringers," stated Sterling Du, Chairman and CEO of O2Micro. "We believe that patent litigation is necessary to protect our technology and recoup lost profits and other damages."



O2Micro International Limited

Joe Lin, 408/987-5920