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The patent EP2061230 was granted to Hitachi on Apr 20, 2011. The application was originally filed on Jul 9, 2008 under application number EP08252339A. The patent is currently recorded with a legal status of "No Opposition Filed Within Time Limit".

Patent citations refer to prior patents cited during different phases such as opposition or international search.
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
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