Abstract: Artificial charcoal is manufactured by utilizing organic materials and environmental contaminated materials that would become industrial waste if processed by ordinary processing methods. Fine stone powder that generates far-infrared radiation and/or negative ions is mixed with a powder of pulverized, combustible, industrial waste material. The fine stone powder may comprise one or more of quartz porphyry, granite porphyry and tourmaline. The mixed powders are moulded and solidified to produce an artificial charcoal having great advantages, both socially and economically.

Abstract: The present invention provides a method of producing a health-promoting construction material. The method includes processing a construction material by use of an adhesive to which a finely pulverized powder of stone generating far-infrared radiation and/or negative ions has been incorporated. The stone generating far-infrared radiation and/or negative ions is preferably quartz porphyry, granite porphyry, tourmaline, zeolite, or a mixture thereof.

Abstract: A process for treating wood consisting of boiling the wood in a solution containing alkylamine and then transferring the boiled wood to an autoclave where an alkylamine permeating solution is forced into the wood under the conditions of pressure and heat. The wood is then dehydrated under reduced pressure and is then air dried.

Abstract: A process for treating wood which process comprises boiling the wood with a solution containing a surface active agent and an alkali, shifting the boiled wood to a pressure boiler, permeating the surface active agent and dilute alkali solution forceably into the wood under the conditions of pressure and heating, dehydrating it by applying reduced pressure to the wood, air drying or kiln drying the wood so treated.