Tokan Kogyo Co., Ltd.

Hideyuki Muroi

Takamitsu Isogai

Souma Takamiya

Keita Iwamizu

Takeshi Isobe

Isogai Takamitsu

The present invention is related to a cap assembly which is put over a mouth of a bottle and a method for capping of capping the cap assembly to a bottle, and includes a function that makes it possible to open an inner stopper only by operating a cap when removing the cap initially, and makes attaching thereof to the bottle easy. There are included an inner stopperand a cap, which respectively include a male screw threadand a female screw threadand the inner stopperand the capwhile a state in which they are assembled is maintained are capped to a bottleand when the capis removed initially, the capis firstly rotated in a direction of closing to have a junction sectionbroken, and then the capis rotated in a direction of opening so that the lid bodyof the inner stopperis removed together with capthereby causing the inner stopperalso to be in a state of being opened.

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Tokyo, Japan

Hideyuki Muroi