Abstract: A method for generating a calculation formula to obtain an accurate mottling value is disclosed. Two-dimensional data and color values of a target paint film are considered. The calculation formula provides a method for numerically expressing the mottling of the target paint film.

Abstract: Paint film mottling of a blended paint is predicted by substituting a glitter representing value and color values into a paint film mottling prediction formula. The disclosed prediction method is computerized with a computer-executable program and a computer-readable storing medium.

Abstract: A method for generating a calculation formula to obtain an accurate mottling value is disclosed. Two-dimensional data and color values of a target paint film are considered. The calculation formula provides a method for numerically expressing the mottling of the target paint film.

Abstract: This invention provides a color matching apparatus for automotive repair paints with which the color matching of a repair paint to an existing paint, whether containing or not containing a metallic or pearlescent pigment, can be performed with high precision in a reduced number of steps even by the novice. The apparatus of the invention comprises a computer, a color data file and a database reference system.

Abstract: A method of determining the formulating ratio of metallic or pearlescent pigments to colorants for matching the color of a metallic or pearlescent coating to an target color wherein, the spectral reflectances of a plurality of samples varied in the formulation of colorants and metallic or pearlescent pigments are measured with a goniospectrophotometer and stored in a computer memory beforehand and, in performing a CCM using the stored data, reproduction spectral reflectances are calculated by reflecting the changes in spectral reflectance due to changes in the amount of the metallic or pearlescent pigments.

Abstract: The present invention is a method of measuring a gonio-spectral reflectance factor to establish a gonio-spectral reflectance factor database available for a personal computer by which a highly-fine realistic 3D computer graphics image can be formed. The method enables colorimetry in a reduced hours in fewer viewing directions compared to the conventional method by executing colorimetry in a plurality of viewing directions selected at random from all the directions that can be viewed by a goniospectrophotometer, said plurality of viewing directions being less than all the directions that can be viewed by the goniospectrophotometer.

Abstract: A card assembly comprising a backing sheet, a first transparent film bonded to the backing sheet along one side margin area portion through a first pressure sensitive adhesive coating, a transparent releasable film attached to the first transparent film along the remaining area portion, a cut line of a generally closed-loop configuration formed through the first transparent film and the releasable film to define a configuration corresponding to the circumference of a thin article to be interposed between the releasable sheet and the backing sheet, the configuration defining margin area portion on the releasable sheet being along the entire circumference thereof, and a second transparent film secured to the outer surface of the first transparent film along the entire surface thereof through an adhesive coating.

Abstract: Embodiments of supercharged internal combustion engines employing improved induction systems for providing better performance at idle low speeds and upon acceleration. A simplified bypass and pressure relief system is incorporated in each embodiment for permitting the engine to induct air directly and independently of the supercharger at low speeds and on acceleration from low speed. A pressure relief valve is also incorporated for relieving excess pressure from the supercharger back to the bypass in the event of excessive supercharger pressures. The system also embodies a fuel injection device that has the pressure of fuel injection controlled in relation to the pressure in the intake passage into which it discharges. Furthermore, an auxiliary induction system is provided for inducing turbulence in the intake charge at low engine speeds to improve efficiency under these conditions.