Abstract: Provided is a method for purifying natural oil comprising: supplying a to-be-treated raw natural oil into a reaction tank which is provided with a layer of a particulate photocatalyst, and which is configured to allow the to-be-treated raw natural oil and oxygen and/or hydrogen to pass through the particulate photocatalyst in the layer; and then, while introducing oxygen and/or hydrogen to the inside of the layer of the particulate photocatalyst, causing the raw natural oil to circulate and to come into contact with the particulate photocatalyst, with a temperature inside the reaction tank kept at 40 to 110° C., to thereby purifying the raw natural oil.

Abstract: Disclosed is a method for producing botanical oil with no by-produced trans fatty acids comprising the steps of; (1) introducing a raw oil obtained by squeezing plant seeds into a column having activated carbon filled therein from the upper part of the column; (2) allowing the oil to transfer in the column by the action of gravity toward the lower part of the column and allowing the oil to discharge from the column through a filter cloth placed adjacent to the bottom part of the activated carbon layer, wherein the filter cloth has a pore size of 13 to 45 ?m, and (3) introducing the oil discharged from the column into an activated carbon separation device comprising a filter having a pore size of 3-7 ?m, and discharging from said separation device an oil having no activated carbon microparticles by the action of a sucking force.

Abstract: Disclosed is a method for producing botanical oil with no by-produced trans fatty acids comprising the steps of; (1) introducing a raw oil obtained by squeezing plant seeds into a column having activated carbon filled therein from the upper part of the column; (2) allowing the oil to transfer in the column by the action of gravity toward the lower part of the column and allowing the oil to discharge from the column through a filter cloth placed adjacent to the bottom part of the activated carbon layer, wherein the filter cloth has a pore size of 13 to 45 ?m; and (3) introducing the oil discharged from the column into an activated carbon separation device comprising a filter having a pore size of 3-7 ?m, and discharging from said separation device an oil having no activated carbon microparticles by the action of a sucking force.

Abstract: Disclosed is a method for producing botanical oil with no by-produced trans fatty acids comprising the steps of; (1) introducing a raw oil obtained by squeezing plant seeds into a column having activated carbon filled therein from the upper part of the column; (2) allowing the oil to transfer in the column by the action of gravity toward the lower part of the column and allowing the oil to discharge from the column through a filter cloth placed adjacent to the bottom part of the activated carbon layer, wherein the filter cloth has a pore size of 13 to 45 ?m; and (3) introducing the oil discharged from the column into an activated carbon separation device comprising a filter having a pore size of 3-7 ?m, and discharging from said separation device an oil having no activated carbon microparticles by the action of a sucking force.

Abstract: Disclosed is a method for producing botanical oil with no by-produced trans fatty acids comprising the steps of; (1) introducing a raw oil obtained by squeezing plant seeds into a column having activated carbon filled therein from the upper part of the column; (2) allowing the oil to transfer in the column by the action of gravity toward the lower part of the column and allowing the oil to discharge from the column through a filter cloth placed adjacent to the bottom part of the activated carbon layer, wherein the filter cloth has a pore size of 13 to 45 ?m; and (3) introducing the oil discharged from the column into an activated carbon separation device comprising a filter having a pore size of 3-7 ?m, and discharging from said separation device an oil having no activated carbon microparticles by the action of a sucking force.

Abstract: An object of the present invention is to provide a miniaturized plane antenna having good axial ratio characteristics over a broad frequency range. An antenna equipped with feeding points at two axial directional impedance matching points of a radiation electrode formed on a surface of a dielectric substrate is mounted on a two-layer wiring board equipped with a 90° hybrid and ports. In the wiring board, the 90° hybrid by means of a closed conductor pattern is configured to have ports drawn out toward an inside of the closed conductor pattern to be connected with the antenna and another port to be connected to a coaxial line, and an earth conductor is arranged outside the closed conductor pattern so as to surround it or inside the closed conductor pattern. The 90° hybrid is adapted to be accommodated in a back face of the antenna.

Abstract: An object of the present invention is to provide a miniaturized plane antenna having good axial ratio characteristics over a broad frequency range. An antenna equipped with feeding points at two axial directional impedance matching points of a radiation electrode formed on a surface of a dielectric substrate is mounted on a two-layer wiring board equipped with a 90° hybrid and ports. In the wiring board, the 90° hybrid by means of a closed conductor pattern is configured to have ports drawn out toward an inside of the closed conductor pattern to be connected with the antenna and another port to be connected to a coaxial line, and an earth conductor is arranged outside the closed conductor pattern so as to surround it or inside the closed conductor pattern. The 90° hybrid is adapted to be accommodated in a back face of the antenna.

Abstract: A vacuum carburizing furnace wherein the concentration of carburizing gas in the furnace atmosphere as well as the furnace pressure may be maintained within predetermined ranges for optimum carburization, and the carburizing atmosphere is forced to circulate by a fan within the heating chamber so that parts or articles may be uniformly carburized.