Toshiba is building on its strength in the laptop market with an expansion into the smartphone arena.
The company is developing a sub-brand called Portege and releasing two slider phones for business users - the G500 and G900.
The phones are rich in features suggested by respondents to a survey of business smartphone users, and will compete with brands such as Palm, HP and HTC.
Both phones have HSDPA and Wi-Fi connectivity, plus a two-megapixel camera, Windows-interface and microSD cards. Security features include fingerprint recognition.