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This department successfully produced synthetic petroleum prior to the end of World War II. This was an early breakthrough for Japan and the rest of the world. Samples of the synthetic petroleum and a catalyzer which were used during production, were kept in approximately twenty reagent bottles of 300 - 500cc. Some of them were submitted to Japanese Emperor for inspection at Kyoto Imperial palace in 1940.
Blueprints of the equipment for the production, photographs of the
equipment and photographic dry glass plates are also kept.
Furthermore, some documents from the experiment are preserved in