Abstract: The invention includes a method of manufacturing a golf ball by placing a golf ball core into a preform mold cavity, injection molding a cover around the core, placing the resulting preform into a dimpled compression mold cavity and compression molding the cover to define a golf ball. The invention also includes injection molding a golf ball preform into an outer non-dimpled elongated spherical shape having an elongate axis, and compression molding a spherical golf ball from the preform in a substantially spherical dimpled compression mold cavity.

Abstract: A method of forming a composite material including the steps of: providing a surface against which the composite material can be molded; providing a plurality of discrete filler particles; placing a plurality of discrete filler particles against the surface; preventing the particles from shifting freely along the surface; directing a liquified matrix material against the particles on the surface; and solidifying the matrix material to unite the discrete particles and matrix material into a composite structure.

Abstract: A method for making a sheet button panel assembly that can avoid wrinkles at boundaries of embossments and damages on a printed face of a decorative sheet. The method includes the steps of embossing the decorative sheet where only one mold contacts the portions of the decorative sheet to which embossments are formed and where the decorative sheet is heated, and injecting resin into a cavity to form a sheet button panel assembly in which the decorative sheet and the resin are made united. When embossing the decorative sheet, the decorative sheet is softened by heating and is less restricted because only one mold contacts the sheet. The decorative sheet is free of wrinkle and damage, in particular, no damages in printed face of the decorative sheet.