The agricultural experiment station of Toyama Agricultural Research Center cross-fertilized Hidahomare/Akita sake and conducted breeding, and beginning in 1996 brewing tests were carried out as 'Toyama sake No. 45;' it was given the name 'Obama nishiki' in 1998, and the variety was registered in 2001.
同県農業技術センター農業試験場にてひだほまれ/秋田酒を交配育種、1996年より「富山酒45号」として醸造試験を続け、1998年「雄山錦」と命名、2001年品種登録。