Sony Corporation of Japan (Sony Corporation) is a world-renowned largescale comprehensive multinational enterprise group. Sony is the world leader in the field of audio-visual, video games, communications products and information technology, is the world's first portable digital products pioneer, is the world's largest electronics manufacturers, one of the world's three major gaming giants. In addition, Sony is the original Hollywood eight film companies which three: Columbia Pictures, MGM film company and the joint art film company merged. (One of the six major Hollywood studios in the United States). Sony is also the world's largest music company, has merged the Columbia record company and Bertelsmann music company and acquired all the music business of EMI, Sony is one of the world's top ten patent companies, with more than 3,000 patented invention.