Patent ID: 11969975
Assignee: NITTO DENKO CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC B  C  G  H | IPC B

Claim 0:
1. A protective cover member configured to be placed on a face of an object to prevent a foreign matter from entering an opening of the face, the protective cover member comprising a laminate including:
a protective membrane having a shape configured to cover the opening in a state that the protective cover member is placed on the face;
a substrate film joined to the protective membrane; and
a first adhesive layer configured to fix the protective cover member to the face, wherein
an outer peripheral surface of the protective cover member has a step in a laminating direction of the laminate,
in the state that the protective cover member is placed on the face, a first portion of the protective cover member protrudes at the step more outward than a second portion of the protective cover member does, the first portion being positioned farther from the face than the step, the second portion being positioned closer to the face than the step, and
the protective membrane and the substrate film are positioned in the first portion, and
wherein, with respect to a plan view of the protective membrane, the step is provided to extend along only a portion of a perimeter of the first portion.