Toyo Seikan Co., Ltd.

Rika Nagaharu

Atsushi Komiya

Takeshi Uchiyama

Ryouta Ishii

Ryota Ishii

Kouki Okabe

Koki Okabe

Masashi Fujioka

Hiroyuki Kondo

A container () including an opening part (), a shoulder part (), a barrel part (), and a bottom part (), wherein: the shoulder part () includes a hem part () in which the longitudinal section is curved in a convex arcuate shape toward the outside of the container and which is connected to the barrel part (); and a plurality of groove parts () extending radially from the container-center side toward the outer-peripheral-edge side are formed in the shoulder part () so as to extend at least to a position that reaches an upper end edge (UE) of the hem part ().

Synthetic resin container

Growing community of inventors

Yokohama, Japan

Rika Nagaharu