Yoshino Kogyosho Co., Ltd.

Kazumi Azuma

Tetsuo Takahashi

Tatsuya Kawami

A cap configured to be detachably attached to a mouth portion of a container body having a containment space for contents and close the mouth portion, includes: a transparent or semitransparent topped tubular outer lid portion; and a topped tubular inner lid portion located in close contact with an inner side of the outer lid portion so as to be relatively non-rotatable. A retaining protrusion having an inclined surface that is inclined inward in a downward direction and extends to a lower end of the outer lid portion is provided on an inner peripheral surface of the outer lid portion. The retaining protrusion engages with a retaining depression provided on an outer peripheral surface of the inner lid portion, to suppress separation between the outer lid portion and the inner lid portion.

Cap and container

A replacement type container that facilitates an operation of separating an inner container and prevents an outer container from dropping off at the time of latching release of an engagement portion. The replacement type container includes an inner container that houses a content, an outer container that houses the inner container, and a cap attached to the inner container.

Replacement type container

An insert-molded container in which a secondary container made of transparent synthetic resin is integrally provided to the outside of a primary container, the secondary container includes a gate mark, and a vapor-deposited layer is provided on the outer surface of the primary container in a peripheral area of the gate mark is manufactured by a manufacturing method of insert-molded container. The method includes: a cover attaching step of attaching a cover member made of transparent synthetic resin to the outer surface of a part of the primary container where a vapor-deposited layer is provided; a placing step of placing the primary container in a mold with the cover member facing a gate; and an insert molding step of injecting a transparent synthetic resin material from the gate.

Growing community of inventors

Tokyo, Japan

Kazumi Azuma