By Wailin Wong

Motorola is seeking a temporary restraining order against a former executive who left the Schaumburg-based company to join Finnish mobile phone maker Nokia.

Motorola filed an emergency motion Jan. 14 in Cook County Circuit Court, asking for a restraining order against David Hartsfield. The case was moved to U.S. District Court.

The filing said that as a vice president in the mobile devices business, Hartsfield had "access to Motorola's most competitively sensitive information" and was responsible for phones using Code Division Multiple Access, or CDMA, technology. In the U.S., Verizon Wireless and Sprint use the CDMA standard.

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