Konica Minolta said it was purchasing US diagnostics company Ambry Genetics in a deal valued at up to $1 billion — an acquisition that marks a strategic shift for the Japanese firm's healthcare business as it seeks a leading position in precision medicine. The deal is the largest ever for the photocopier maker, which has been seeking to diversify away its office equipment business. It pulled out of cameras about a decade ago. Konica Minolta said its advanced imaging technology complemented privately held Ambry's genetic testing capabilities, with initial applications for combining the technologies seen in diagnosing hereditary cancer. "Together