Abstract: The present invention provides a polishing composition which can remove a natural oxidized layer on a silicon wafer and can efficiently polish the silicon wafer. The polishing composition of the present invention comprises colloidal ceria and an alkaline polishing composition. The polishing composition of the present invention may further comprise a chelating agent. The present invention includes a polishing method comprising removing an oxidized layer with colloidal ceria; a polishing method comprising removing an oxidized layer with colloidal ceria and polishing a silicon wafer with an alkaline polishing composition; and a polishing method comprising polishing a silicon wafer with a polishing composition comprising colloidal ceria and an alkaline polishing composition. Further, the present invention relates to a polishing composition kit comprising colloidal ceria and an alkaline polishing composition.

Abstract: The present invention provides a polishing composition used in a polishing process of a silicon wafer, which has an improved smoothness and is environment-friendly. The polishing composition for the silicon wafer of the present invention comprises a metal oxide, an alkaline substance and water, wherein the alkaline substance is guanidines. Another polishing composition for a silicon wafer of the present invention comprises an alkaline substance and water, wherein the alkaline substance is guanidines. These polishing compositions may further comprise a chelating agent. The metal oxide is preferably a cerium oxide or a silicon oxide. The present invention encompasses a polishing method using the above polishing composition and a kit for the above polishing composition.

Abstract: To provide a slide mechanism of a portable device structured to allow slide operation semiautomatically, and a portable telephone provided with the slide mechanism of the portable device, it comprises a base member 5 mounted on either one of the first casing 2 and the second casing 3, a slider 4 slidably engaged with the base member 5 and mounted on the other of the first casing 2 and the second casing 3, and a slide energizing means 6 provided between the slider 4 and the base member 5. The slide energizing means 6 is constituted of a rotary arm 7 rotatably mounted on either one of the base member 5 and the slider 4, and an energizing member 8 mounted on the other of the base member 5 and the slider 4, allowing the first casing 2 and the second casing 3 to automatically open/close from a predetermined opening/closing position by acting on the rotary arm 7 to energize the rotary arm 7 to rotate from a predetermined rotary position to both of right and left directions.

Abstract: To provide a slide mechanism of a portable device structured to allow slide operation semiautomatically, and a portable telephone provided with the slide mechanism of the portable device, it comprises a base member 5 mounted on either one of the first casing 2 and the second casing 3, a slider 4 slidably engaged with the base member 5 and mounted on the other of the first casing 2 and the second casing 3, and a slide energizing means 6 provided between the slider 4 and the base member 5. The slide energizing means 6 is constituted of a rotary arm 7 rotatably mounted on either one of the base member 5 and the slider 4, and an energizing member 8 mounted on the other of the base member 5 and the slider 4, allowing the first casing 2 and the second casing 3 to automatically open/close from a predetermined opening/closing position by acting on the rotary arm 7 to energize the rotary arm 7 to rotate from a predetermined rotary position to both of right and left directions.

Abstract: In order to attain a small-sized opening and closing device suitable for use especially with a portable telephone which is so constructed to reduce cost by minimizing the number of parts to simplify the structure thereof, and to achieve a light pushing operation on a push-button, the present invention is composed of a shaft, a slider cam attached to the shaft slidably in an axial direction, having a cam portion in one end portion, a first compression spring interposed resiliently between the slider cam and the shaft, an inner cam attached rotatably relative to the shaft, having a cam portion disposed on a side thereof facing the cam portion of the slider cam, an outer cam attached to the shaft, accommodating the inner cam rotatably therein, with a cam portion thereof provided on a side facing the cam portion of the slider cam, a slide key disposed non-rotatably and slidably in an axial direction relative to the outer cam, for arresting and releasing the inner cam, a push-button disposed in one end portion of

Abstract: A tilting hinge is provided which includes a first bracket consisting of a fixing plate portion and a bearing plate portion bent at a right angle relative to the fixing plate portion, the fixing plate portion being fixed to any one of the body of an apparatus and a component part of the apparatus, installed pivotably to the latter and the bearing plate portion having a non-circular bearing hole formed therein; a cylinder having a fixing portion formed at one end and a friction torque generating hole formed axially in it, the fixing end portion being inserted and fixed in the non-circular bearing hole in the bearing plate portion of the first bracket; a second bracket consisting of a fixing plate portion and a bearing plate portion bent at a right angle relative to the fixing plate portion, the fixing plate portion being fixed to the other of the body and component part of the apparatus and the bearing plate portion having formed in it a non-circular bearing hole; and a radially elastic spring pin having provi

Abstract: In order to attain a small-sized opening and closing device suitable for use especially with a portable telephone which is so constructed to reduce cost by minimizing the number of parts to simplify the structure thereof, and to achieve a light pushing operation on a push-button, the present invention is composed of a shaft, a slider cam attached to the shaft slidably in an axial direction, having a cam portion in one end portion, a first compression spring interposed resiliently between the slider cam and the shaft, an inner cam attached rotatably relative to the shaft, having a cam portion disposed on a side thereof facing the cam portion of the slider cam, an outer cam attached to the shaft, accommodating the inner cam rotatably therein, with a cam portion thereof provided on a side facing the cam portion of the slider cam, a slide key disposed non-rotatably and slidably in an axial direction relative to the outer cam, for arresting and releasing the inner cam, a push-button disposed in one end portion of

Abstract: An operative hinge for use with an opening/closing body is provided which comprises a hinge case to be installed to a toilet bowl body for operating the opening/closing body; a shaft provided rotatably within the hinge case to support the opening/closing body; a stationary cam fixed within the hinge case and having formed therein a central through-hole through which the rotating shaft is axially penetrated; a cam provided within the hinge case and having formed therein a central through-hole through which the rotating shaft is axially penetrated to be slidable on, and rotatable with, the rotating shaft; and a resilient means for urging the rotatable sliding cam toward the stationary can, the hinge further comprising, to further positively control the rotation or the rotating means, a damping means consisting of a rubber ring fitted on the rotating shaft and interposed between the outer surface of the rotating shaft and the inner wall of the hinge case; and a viscous oil applied between the outer surface of th