Japanese electronics maker Sharp unveiled a new smart phone, aiming to cement its leading position in the market ahead of the impending launch of the popular BlackBerry device in Japan. Canada’s Research in Motion said last month that it would bring the BlackBerry to Japan this autumn, potentially breathing new life into Japan’s relatively small smart phone market while also causing headaches for entrenched players like Sharp. Sharp said its new phone, called the W-ZERO3 would come equipped with a Microsoft operating system and 128 megabytes of flash memory. In addition to making calls, users can access the Internet, read emails, and work on Microsoft applications such as Word and Excel. The phone will be sold by mobile carrier Willcom.