1913 Kiyoka Masuno, our first president, founded the company to start supplying the Japanese cement industry with machines designed and built in Japan.   To 1925 Rotary Klins, Air Separators, and Tube Mills for use in cement production were the company's main products.   1931 Development of Mechanical Gas Producer.   To the end of World War II Production efforts were concentrated on our Mechanical Gas Producer range with progressive production plant expansion.   Post-war period Renewed commitment to the production of machines for a large range of industries, including ceramics, chemicals, and steel in addition to cement.   1984 Integration and expansion of production facilities at the Ishioka Factory.   1986 The new main office building (Central Arakawa Bldg.) was constructed.   1950 to date Commitment to the manufacture of machines and development of processes mainly for the chemical, powder processing, and steel industries. Our recent R&D has concentrated on the development of waste treatment and powder processing technology and machines.   1991 Capital increased to ¥100 million.