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RIM names pair of new executives

David Manning/Reuters

RIM’s sales tumbled 25 percent last quarter, with US revenue plummeting more than 50 percent.

TORONTO - Research In Motion Ltd., bolstering its executive ranks as the BlackBerry maker attempts a comeback, named a Sony executive as chief operating officer and a LightSquared official as head of marketing.

Kristian Tear, who served as executive vice president at Sony Mobile Communications, will take the operating job, RIM said Tuesday. Frank Boulben, who was executive vice president at LightSquared after a career at wireless carriers, will be chief marketing officer.

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The appointments represent the first major personnel additions for chief executive Thorsten Heins, who took charge of RIM in January from cofounders Mike Lazaridis and Jim Balsillie. The company is banking on the new BlackBerry 10 operating system to resurrect its smartphone lineup, which has lost market share to Apple’s iPhone and Google’s Android.

“With the BlackBerry 10 platform, I believe RIM will once again change the way individuals and enterprises engage with each other,’’ Boulben said.

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