Mask including shell structure and shell structure

专利名称：Mask including shell structure and shell

structure

发明人：ジノ， リ,ジョンチョル， ムン申请号：JP2018213290申请日：20181113公开号：JP2019108649A公开日：20190704

专利附图：

摘要：Although the mask can be easily folded by external force, a shell structure canbe easily restored to its original shape after the external force is removed. The shellstructure 200 includes a peripheral portion 210 forming an edge and an arched curved

portion 220 formed integrally with the inner periphery of the circumference, and agroove portion 223 is formed on the rear surface of the curved portion along the verticalcenterline of the curved portion The curved portion is formed so that the groove portioncan be folded as a center line. Diagram

申请人：スリーエム イノベイティブ プロパティズ カンパニー

地址：アメリカ合衆国，ミネソタ州 ５５１３３－３４２７，セント ポール，ポスト オフィスボックス ３３４２７，スリーエム センター

国籍：US

代理人：長谷川 芳樹,池田 成人,清水 義憲,酒巻 順一郎

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