Patent ID: 11884048
Assignee: SEIREN CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. An upholstery including a decorative sheet comprising:
a base material including at least one of a fabric or a leather, and
a concave portion which is provided on a front face of the base material and whose depth direction coincides with a thickness direction of the base material,
wherein the concave portion further comprises a singular concave recess with an inner surface including a first surface and a second surface different from the first surface, the first surface being a bottom surface,
a first concavo-convex pattern in a first region of the first surface of the concave portion, the first concavo-convex pattern including at least two rows of first shaped surfaces, the first shaped surfaces disposed at predetermined intervals along the respective rows, and
a second concavo-convex pattern which is different from the first concavo-convex pattern in a second region of the second surface, the second region being different from the first region, the second concavo-convex pattern including at least two second shaped surfaces, each second shaped surface having an elongate dimension and being rectangular or triangular in cross-section,

wherein the first concavo-convex pattern is absent from the second surface of the concave portion, and
wherein an appearance of the concave portion changes with a changing viewing angle.