OKAMOTO GLASS CO LTD revenue for the last year amounted to 4.89 B JPY, the most of which — 2.28 B JPY — came from its highest performing source at the moment, Optical, the year earlier bringing 2.30 B JPY. The greatest contribution to the revenue figure was made by Japan — last year it brought OKAMOTO GLASS CO LTD 2.27 B JPY, and the year before that — 2.45 B JPY.