History 1928-1949
| 1928 | - First Japanese low-press air jet oil burner developed. Trade mark "VOLCANO" adopted. - Osaka Heavy Oil Furnace Manufacturing Company established. |
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| 1932 | - Forged furnaces of army and navy foundries converted into heavy oil furnaces. |
| 1933 | - Pressure-jet type burner completed. Installed in Sasebo and Yokosuka factory boilers with excellent results. |
| 1938 | - VOLCANO Specified for all naval work vessels burners. |
| 1939 | - Coal fired semi-gas furnace developed. |
| 1941 | - Delivered a heating flue boiler for the train between Tokyo and Numazu. |
| 1943 | - Company Reorganized to Osaka Heavy Oil Furnace Manufacturing Co., Ltd., with capital of 300,000 yen. |
| 1949 | - Capital increased to 1 million yen. |
Founder, Benji Okihara, was a student of "Osaka Engineering High School"
Pressure jet type burner and accessories
Operation manual of oil burner for marine boiler