While growth factors into the calculation, Brand Finance said, brand development and protection are also crucial. In Bridgestone's case, for example, Bridgestone Corp. successfully sued Chinese tire company Guangzhou Bolex to get that company to stop making and selling tires under the "Gemstone" brand, using the same font and colors of the Bridgestone trademark. This trademark infringement action demonstrates Bridgestone's commitment to protecting its intellectual property rights and maintaining its brand value globally, Brand Finance said. Commenting on the results, a Bridgestone spokesperson said that "as a global brand, Bridgestone responds to its customer needs in three important ways: by committing to manufacturing world class quality products made only from materials that are renewable or recyclable; to reduce CO2 emissions as a business; and to operate in a way that ensures a balance with the environment."