Abstract: A method includes a step of applying an aqueous 2-package type first colored paint to form an uncured first colored coating film; a step of applying an aqueous 1-package type second colored paint to form an uncured second colored coating film; a step of applying a solvent-based 2-package type clear paint to form an uncured clear coating film; and a step of heating the uncured first colored coating film, the uncured second colored coating film and the uncured clear coating film to 75 to 100° C. to simultaneously cure these films. The solvent-based 2-package type clear paint contains a hydroxyl group-containing acrylic resin and a polyisocyanate compound in a ratio of 1.5 to 2.0 equivalents of isocyanate groups in the polyisocyanate compound relative to 1 equivalent of hydroxyl groups in the hydroxyl group-containing acrylic resin.

Abstract: A steering device includes: a housing; and a spring configured to urge the retainer toward the rack bar in the second axis direction, and the rack bar, the retainer, the spring, and the spring holding member being disposed in this order in the second axis direction; the retainer chamfering portion provided on the retainer second end portion near the spring holding member, on a retainer second end portion outer circumference portion, and the retainer chamfering portion formed at a portion which is nearest the spring holding member abutment surface in the retainer second end portion outer circumference portion in a section that passes through the second axis, and that is perpendicular to the first axis, when the retainer main body portion is inclined with respect to the second axis.

Abstract: The alumina powder contains: a first alumina particle having an average particle diameter of 0.1 µm or more and less than 1 µm; a second alumina particle having an average particle diameter of 1 µm or more and less than 10 µm; and a third alumina particle having an average particle diameter of 10 µm or more and 100 µm or less, wherein each of the average particle diameters is a particle diameter measured using laser light diffraction scattering particle size distribution analyzer, average sphericity of first alumina particle having projected area equivalent circle diameter of 0.1 µm or more and 1 µm or less as determined by microscopy is 0.80 or more and 0.98 or less, a specific surface area of first alumina particle is 1.9 m2/g or more and 20.0 m2/g or less, and content ratio of an ? crystal phase is 80% by mass or more.

Abstract: A carbon-containing alumina powder containing a carbon-containing alumina particle having a projected area equivalent circle diameter of 1 ?m or more and 100 ?m or less as determined by microscopy, wherein an average sphericity of the carbon-containing alumina particle is 0.85 or more, and a specific surface area is 0.05 m2/g or more and 1.0 m2/g or less, and a ratio B/A of a carbon content ratio B to a carbon content ratio A in the carbon-containing alumina powder calculated by using a specific measurement method is 0.20 or more and 0.90 or less.

Abstract: An alumina powder containing: a first alumina particle having average particle diameter from 0.1 ?m to 1 ?m; a second alumina particle having average particle diameter from 1 ?m to 10 ?m; and a third alumina particle having average particle diameter from 10 ?m to 100 ?m, wherein the particle diameters are measured using laser light diffraction scattering particle size distribution analyzer, average sphericity of first alumina particle having projected area equivalent circle diameter from 0.1 ?m to 1 ?m as determined by microscopy is from 0.80 to 0.98, and a ratio of D90/D10 of first alumina particle is from 2.0 to 8.0 wherein the ratio of D90/D10 is a ratio when particle diameter at cumulative value of 10% from fine particle side of cumulative particle size distribution on volume basis is D10 and particle diameter at cumulative value of 90% from fine particle side is D90.

Abstract: A wheel cover comprises a fixable side fixture fixably secured to the center of a wheel of a car, as to be able to position to the central part thereof; a movable side fixture pivoyably mounted to the central part of the fixable side fixturethrough a bearing; a wheel cover body in the shape of a disk mounted to the movable side fixture, having a space between the wheel; and a weight mounted to said movable side fixture or wheel cover body, in order to prevent to rotate the wheel cover body so that people can see the design drawn onto the wheel cover body because the rotating of the wheel cover body can be prevented if the tire rotates, moreover, the wheel cover is positioned the up and downward thereof and can be prevented to be unsightly design.

Abstract: A wheel cover of the present invention includes a fixable side fixture fixably mounted to the center of a wheel of a vehicle, so as to be able to position the cover to the central part thereof; a movable side fixture pivotally mounted to the central part of the fixable side fixture through a bearing; a wheel cover body, substantially in the shape of a disc and mounted on the movable side fixture, having a space between itself and the wheel; a device for biasing the wheel cover body, in order to prevent integral rotation with the wheel; and a dynamo mounted on the movable side fixture or wheel cover body and driven rotatably by rotating of said wheel, so that the dynamo is mounted on the wheel cover, so as to generate electricity by rotation with the wheel and wheel cover body mounted rotatably to the wheel when the vehicle is in motion, electricity generated by the dynamo is used for a illumination or transmitter of electromagnetic wave, or the like, as power source.

Abstract: In a lever type hoist an operation handle (18) is provided between a stopper (17) provided at the axial end portion of a driving shaft (5) and a driving member (8) screwed on the driving shaft (5) so as to be movable in the axial direction but non-rotatable relatively to the driving shaft (5). A spring (19) for energizing the operation handle (18) toward the driving member (8) is provided to bring inclined surface (31a) of the engaging projection (31) provided on the operation handle (18) into elastic contact with an engaging stepped portion (37) of the driving member (8) during the time when the mechanical brake (13) is being operated, whereby the driving member (8) can be prevented from being reversely rotated while being accompanied by a returning operation of the operation lever (16) by the engaging resistance of a feed click (14) during the time when a hoist and traction operation is being conducted under the no-load condition.

Abstract: In a hoist and traction machine including a free rotation control apparatus, a free-rotation spring 19, for urging an operating handle 18 toward a driving member 8 and also urging the driving member 8 in the brake releasing direction, is interposed between the driving member 8 and a stopper 17 provided on a driving shaft 5. When the operating handle 18 is pulled out, the driving member 8 is rotated to move away from a driven member 7 by a torsional urging force of the spring 19 and thereby a braking ratchet wheel 11 and braking plates 9, 10 is released. Engagement lugs 31 are then brought into resilient contact with free rotation surfaces 35 via an axial urging force of the spring 19 to maintain controlled free-rotation.

Abstract: The invention provides a light-weight base body of a reflecting mirror such as a mirror in a reflecting astronomical telescope, which is very stable not only thermally but also mechanically and is highly resistant against adverse environmental influences. The mirror base is composed of a porous foamed disc body of fused quartz glass or high-silica glass sandwiched by two plates of fused quartz glass or high-silica glass, of which one is made from transparent glass and serves to provide an optical surface having flatness or a specified curvature, and the side surface of the porous foamed disc body is protected against environmental influences by providing an air-tight sealing layer formed from a silicone rubber-based sealing agent or a thin sheet of fused quartz glass or high-silica glass.

Abstract: The invention provides a light-weight base body of a reflecting mirror such as a mirror in a reflecting astronomical telescope which is very stable not only thermally but also mechanically and is highly resistant against adverse environmental influences. The mirror base is composed of a porous foamed disc body of fused quartz glass or high-silica glass sandwiched by two plates of fused quartz glass or high-silica glass, of which one is made from transparent glass and serves to provide an optical surface having flatness or a specified curvature, and the side surface of the porous foamed disc body is protected against environmental influences by providing an air-tight sealing layer formed from a silicone rubber-based sealing agent or a thin sheet of fused quartz glass or high-silica glass.

Abstract: The invention provides a method of preparing a light-weight base body of a reflecting mirror such as a mirror in a reflecting astronomical telescope, which is very stable not only thermally but also mechanically and is highly resistant against adverse environmental influences. The mirror base is composed of a porous foamed disc body of fused quartz glass or high-silica glass sandwiched by two plates of fused quartz glass or high-silica glass, of which one is made from transparent glass and serves to provide an optical surface having flatness or a specified curvature, and the side surface of the porous foamed disc body is protected against environmental influences by providing an air-tight sealing layer formed from a silicone rubber-based sealing agent or a thin sheet of fused quartz glass or high-silica glass.