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Mitsubishi Heavy Says U.S. Patent Ruling Too Narrow

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Feb. 13 (Bloomberg) -- Mitsubishi Heavy Industries Ltd. failed to persuade a U.S. judge that General Electric Co. infringed its patent on wind turbine technology.

The U.S. District Court in Orlando, Florida ruled on Feb. 8 that Mitsubishi Heavy doesn’t get anything on its claim of infringement and General Electric won its counterclaim for judgment of non-infringment, according to a posting from court clerk Sheryl Loesch. The ruling upheld a July 5 decision in favor of General Electric that eliminated a need for a trial.

The interpretation of the patent claims rendered in the court’s judgment “has too narrowly interpreted the patent’s scope,” Mitsubishi Heavy said in a statement yesterday. The company has the option to appeal the ruling to the U.S. Court of Appeals for the Federal Circuit, according to the statement.

Mitsubishi Heavy, based in Tokyo, sued Fairfield, Connecticut-based General Electric in 2010 claiming infringement of a patent which applies to technology to reduce the burden on a wind turbine by controlling the pitch angle of the blades in accordance with the blade rotation angle and other factors.

“Mitsubishi Heavy will quickly issue notification if there’s any progress that merits disclosure,” Hideo Ikuno, a spokesman for the company, said today by phone.

The case is Mitsubishi Heavy Industries Ltd. v. General Electric Co., 10-cv-812, U.S. District Court for the Middle District of Florida (Orlando).

To contact the reporter on this story: Chisaki Watanabe in Tokyo at cwatanabe5@bloomberg.net

To contact the editor responsible for this story: Reed Landberg at landberg@bloomberg.net

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