株式会社ヤナケン is an Osaka specialist in 耐火被覆工事, insulation and 防火区画貫通処理. It is a certified installer for NICHIAS’s Makibee wrap-type rockwool 認定工法, applies semi-dry sprayed rockwool certified as a 不燃材料 under 国土交通大臣認定 NM-8601, and fits calcium-silicate board encasement rated to three hours. It works from Higashi-Osaka with a Tokyo branch in Chiyoda.