Our Company's Strengths and Features

A company that provides one-of-a-kind products.

Since our founding in 1892, we have been consistently dedicated to working with rush grass (Igusa).Utilizing the knowledge and technology cultivated over these many years, we manufacture Igusa Extract Powder.We maintain integrated, end-to-end quality traceability from cultivating the raw rush grass on our own farms to the final powder processing. This allows us to achieve unparalleled quality and consistency.

Strengths of Our Products

Edible Rush Grass Confirmed to Improve Cognitive Function.

An extract processed for consumption from rush grass (Igusa), which is widely known as a raw material for tatami mats, was confirmed in the world’s first human clinical trial to have the potential to promote cognitive function improvement in healthy elderly individuals. The results of this trial were published in the international academic journal, Nutrition.