Kabushiki Kaisha Kashiwara Seitai

Yoshihumi Koyanagi

Yoshihiro Koyanagi

A cubiform cushioning mediumcomprises a planar cushioning mediumwith a plurality of cellsformed by partially bonding non-breathable flexible resin sheets and the cellswhich air is encapsulated thereinside, and the planar cushioning mediumis folded and bonded partially to complete an opening A to be protected for containing. The cubiform cushioning mediumthus has lateral cushioning facesdisposed at the side of the openingand an bottom cushioning portiondisposed at the bottom of the openingby bending the planar cushioning mediumat the bottom end of the lateral cushioning mediumsso that the end cushioning mediumis folded upward to the top of the lateral cushioning mediums

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Kashiwara, Japan

Yoshihumi Koyanagi