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公开(公告)号:US20210159036A1
公开(公告)日:2021-05-27
申请号:US17054011
申请日:2019-05-20
Inventor: Kimiya IKUSHIMA , Satoshi NISHITA , Takeshi OKADA
Abstract: A first end portion includes a first contact. A second end portion includes a second contact. At least a first end portion, out of the first end portion and a second end portion, is curved to be folded back from a tip in one direction of the first end portion. The first contact is located in a folded-back part of the first end portion and faces the second contact.