Abstract: The embodiments relate to titanate crystal particle dispersions, methods of making the dispersions, and compositions and uses thereof. The dispersions and compositions containing the dispersions provide a high coverage to the skin and high near infrared/infrared (NIR/IR) reflectance. The dispersions include optionally surface treated titanate crystals used as cosmetic powders, and a cosmetically acceptable dispersing medium. The dispersions may be useful in cosmetic compositions as a foundation and/or as a composition to correct skin discoloration, and may be used protect the skin from sun exposure.

Abstract: The embodiments relate to cosmetic powder materials and compositions containing them that provide a high coverage to the skin and high near infrared/nitrated (NIR/IR) reflectance. The compositions include optionally surface treated titanate crystals used as cosmetic powders, and a cosmetically acceptable carrier. The compositions may be useful as a foundation and/or as a composition to correct skin discoloration, and may be used protect the skin from sun exposure.

Abstract: Provided is a compression ratio varying mechanism, including a communication hole including: a first opening opened in an outer peripheral side surface of a piston rod; and a second opening, which is prevented from being opposed to the first opening in a radial direction of a piston rod, and is connected to an oil passage at a position apart from the first opening in a stroke direction.

Abstract: Provided is a compression ratio varying mechanism, including a communication hole including: a first opening opened in an outer peripheral side surface of a piston rod; and a second opening, which is prevented from being opposed to the first opening in a radial direction of a piston rod, and is connected to an oil passage at a position apart from the first opening in a stroke direction.

Abstract: In the present invention, the surface-treated powder (the coated powder) can be used as a powder for cosmetics. With the coated powder for cosmetics, dispersibility of the powder and the functions proper to the powder, such as adhesion to the skin, aesthetic feel (using touch), covering power, coloring power, UV or IR light shielding performance, optical characteristics (properties) and the like, may be improved significantly. In particular, the coated powder is superior in affinity to oleophilic liquids, dispersibility, and dispersion stability and may be applied to cosmetics and powders in the fields other than cosmetics.

Abstract: Pigments and extender pigments coated with a mixture comprising at least N-acyl forms of naturally existing 14 amino acids, in particular, pigments and extender pigments processed with a mixture comprising at least N-acyl forms of 14 amino acids, obtainable from or obtained on hydrolysis of any one of animal proteins, such as silk and pearl, and plant proteins, such as wheat and soybeans, which can be mixed into cosmetics, and also cosmetics comprising the coated pigments and extender pigments are provided. Such N-acyl form therein may be in the salt form. The obtained pigments and extender pigments coated therewith in the present invention has extremely smooth tactile feeling, that is an optimum affinity to skin and/or hair (biocompatibility) when used in cosmetics, excellent application feeling on skin and/or hair without coarse feeling, and hence suitable for the powders in cosmetics to be combined.