TOKYO : Japan's Bridgestone has more than halved the value of a planned bond offering to around 50 billion yen ($350.56 million), two sources with knowledge of the matter said. The company has also decided to do away with the proposed 7-year term in the bond offer series that also included other tenors, the sources added. Underwriters are still testing demand for the issuance, said the sources, who declined to be named as the information is not public. Bridgestone declined to comment on the