O2Micro Granted Significant Patent for Battery Systems

O2Micro Granted Significant Patent for Battery Systems Power Management Circuit


SANTA CLARA, Calif. & GEORGE TOWN, Grand Cayman--(BUSINESS WIRE)--Jan. 25, 2002--O2Micro International Limited (Nasdaq:OIIM - news), a leading supplier of innovative power management and security ICs to mobile computer and communications manufacturers, was granted 30 claims under United States patent number 6,329,796 for its Battery Systems Power Management Circuit.


The search for a simple and efficient Charger solution for single and multiple systems is over. The patented Battery Systems Power Management solution provides a battery charge/discharge circuit that controls both the charging power supplied to the battery, and the discharging power provided by the battery. This unique methodology


Enhances battery system efficiency and safety

Prevents an overcharge condition when an adapter is present

Prohibits cross-conduction between batteries of different potential in multiple battery systems

``This patented invention fulfills the need for simple circuit topology in single and multiple battery systems. This is ideal for mobile product applications'', said Jack Shyr, Vice President of the Intelligent Power Group.


About O2Micro


Founded in March 1995, O2Micro designs, develops and markets innovative power management and security components for mobile communication, computer, information appliance, and LCD products. Products include AudioDJ®, SmartCardBus® for secure on line e-commerce, LCD Backlight Inverters and Battery Management IC's.


O2Micro maintains an extensive portfolio of intellectual property with 378 patent claims granted, and over 800 more pending. The company maintains offices worldwide. Additional company and product information can be found on the company website at www.o2micro.com.


Statements made in this release that are not historical, including statements regarding O2Micro's or management's intentions, hopes, beliefs, expectations, representations, projections, plans or predictions of the future, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements involve risks and uncertainties that may cause actual results to differ materially from those set forth in these statements. Factors that could cause actual results to differ materially include risks and uncertainties such as reduced demand for products of electronic equipment manufacturers which include O2Micro's products due to adverse economic conditions in general or specifically affecting O2Micro's markets, technical difficulties and delays in the development process, and errors in the products. You are also referred to the documents filed by O2Micro with the SEC from time to time, including but not limited to the Form F-1 in connection with the company's initial public offering in August 2000, which identify important risk factors that could cause actual results to differ from those contained in the forward-looking statements.


Note to Editors: In the company name ``O2Micro'' the 2 is subscript.






Grace Louh, 408/987-5920 x8051