Abstract: An oral preparation of the present invention contains a multi-composition system including a calcium ion supplying compound; a fluoride ion supplying compound a polyolphosphate ion supplying compound; and, a monofluorophosphate ion supplying compound, wherein the calcium ion supplying compound and the fluoride ion supplying compound are separated within the oral preparation.

Abstract: The invention provides a composition capable of exerting an excellent whitening effect and imparting gloss to teeth. A method for removing a solid product formed on surfaces of teeth, the method containing applying an oral composition to teeth, wherein the oral composition contains 0.05 to 18% by weight of phytic acid or a salt thereof, and contains no polyvalent cation or contains a polyvalent cation in an amount of less than 0.1 fold mol relative to phytic acid, and wherein the oral composition, as diluted with water to 30% by weight, has a pH of 5.5 to 6.5.

Abstract: The invention provides a composition capable of exerting an excellent whitening effect and imparting gloss to teeth. A method for removing a solid product formed on surfaces of teeth, the method containing applying an oral composition to teeth, wherein the oral composition contains 0.05 to 18% by weight of phytic acid or a salt thereof, and contains no polyvalent cation or contains a polyvalent cation in an amount of less than 0.1 fold mol relative to phytic acid, and wherein the oral composition, as diluted with water to 30% by weight, has a pH of 5.5 to 6.5.

Abstract: An oral preparation of the present invention contains a multi-composition system including a calcium ion supplying compound; a fluoride ion supplying compound a polyolphosphate ion supplying compound; and, a monofluorophosphate ion supplying compound, wherein the calcium ion supplying compound and the fluoride ion supplying compound are separated within the oral preparation.

Abstract: An absorbent article 1 comprising a liquid permeable topsheet 21, a liquid impermeable backsheet 22, and a liquid retentive absorbent member 10 and containing a porous deodorizing agent, wherein the porous deodorizing agent has such pores that the volume of the pores whose diameter ranges from 20 to 200 Å is 0.2 ml/g or more, preferably 0.6 ml/g or more.

Abstract: This invention relates to a magnetic recording apparatus which includes a magnetic head and device for moving a magnetic recording medium with respect to the magnetic head and makes recording to and reproduction from the magnetic recording medium, comprising a sliding member which comes into sliding contact with a magnetic recording medium made of a composite material containing glass-like carbon and at least one inorganic compound selected from the group consisting of metal oxides, metal nitrides, metal carbides and metal borides so that the sliding characteristics with respect to the medium can be improved and the recording/reproduction characteristics can be kept stable for a long period of time without damaging the medium due to reduced frictional resistance.

Abstract: The present invention provides a glasslike carbon composite material which has reduced surface friction and excellent wear resistance and durability, because of the addition of specific ultrafine ceramic particles as a reinforcing material to a main component of glasslike carbon. The present invention further provides a method for preparing such a glasslike carbon composite material, as well as a method for preparing a glasslike carbon material.

Abstract: The present invention concerns a glass-like carbon material which may be bonded to other materials, the carbon material having a high thermal expansion coefficient and being highly applicable for use as a slider part for a recording medium.