In 1929, the first president, Motoji Kobayashi, opened a Kobayashi shop selling fruits and vegetables at the Nagoya Riobashi Central Market.

In 1930, the business area was transformed into mustard wholesale.

In 1933, the research and development and production of mustard powder began.

In 1952, the Golden Seal Imposa Company (now the Golden Seal Company) was established, and Kobayashi Motoji became the first president.

In 1971, the company produced gold seal mustard sauce (small bags) and produced gold seal mustard sauce (small bags).

In 2003, Golden Seal Mustard Company was renamed Golden Seal Company.

Jinyin Company produces and sells mustard (fresh mustard, tube-filled, powdered) products, fresh ginger, horseradish, mustard, fresh garlic, plum sauce, pickled mustard, sauce, sauce, soup and other products.