가쓰야마 슈프림 사케 주식회사

Isawa Iekage, the ancestor of the Isawa family, was appointed Mutsu Province military governor by order of Minamoto no Yoritomo.

After the Battle of Ōshū, Isawa Iekage served as the first Rusushiki (deputy governor) of Mutsu Province.

Isawa Iehiro passed away; his posthumous Buddhist name 'Katsuyama Gyōmyō Daikoji' later became the origin of the brand name 'Katsuyama'.

Date Masamune, the first lord of the Sendai Domain, invited a toji (master brewer) from Nara and established an official sake brewery south of the third bailey of Aoba Castle.

The Isawa family's sake brewing business was founded in the first year of the Genroku era; the brand 'Kasuyama' brewed under the trade name 'Isawaya' was renamed 'Katsuyama'.

Dr. Kanejiro Eda, who developed the sokujo-moto (rapid fermentation starter) method, conducted his first trial of it in Miyagi Prefecture at Katsuyama Sake Brewery.

Katsuyama won first place nationwide at the National Sake Appraisal Competition in 1956.