Canon Kabushiki Kaisha

Yuta Moriya

Koki Kodaira

Tomohiro Shima

Tatsurou Fujii

Akira Nishi

Hitoshi Nakashige

A molded resin component includes a first surface on which a convex portion is formed, and a second surface opposite to the first surface. The convex portion includes a molding mark formed by a valve pin of a manufacturing apparatus that manufactured the molded resin component. A shape of at least a portion of a leading-end surface of the valve pin is not transferred into the molding mark.

Method of manufacturing molded resin component, manufacturing apparatus, and molded resin component

A resin shaping mold includes a hot runner, a cavity, a cold runner, and a valve pin. The cold runner is connected to the hot runner and the cavity. The cold runner has a lower temperature than the hot runner. The valve pin configured to move forward and backward from the hot runner toward the cold runner and close a channel of molten resin from the hot runner to the cavity at a predetermined position. The valve pin includes a runner lock portion configured to hold resin solidified at a position further on the cavity side with respect to the predetermined position in the cold runner.

Resin shaping mold and method of producing resin molded product

A molded article has an exterior surface, a non-exterior surface, and a projecting or recessed portion provided on at least one of the exterior surface and the non-exterior surface. A repeated pattern of projections and/or recesses or a texture face, which serves to disturb the flow of resin, is provided on the non-exterior surface.

Growing community of inventors

Chigasaki, Japan

Yuta Moriya