We started the production of hydrazine in 1950 and established Japan Hydrazine company, Inc. as a joint company between Japan Gas Chemical company, Inc. (present Mitsubishi Gas Chemical company, Inc.) and Masuda Chemistry Industries Co.,Ltd in 1959. Afterwards we started the production development centering on hydrazine derivatives and entered into the production of antibiotics medicine intermediates since 1971. Among hydrazine derivatives, sodium azide came to be used as the gas generant agent ...