COATED BASE MATERIAL

WIPO Patent Application WO/2024/029363

A1

The present invention provides a novel coated base material which is applicable to various fields, while being able to be mass produced. A coated base material (1) according to the present invention is obtained by covering a base material (5) with a coating film (3). The thickness of the coating film (3) is not less than 1 nm but less than 800 nm. The total elemental percentage of metal elements and oxygen (O) in the coating film (3) is 70 atom% or more as determined by X-ray photoelectron spectroscopy. The coating film (3) has a relative density of 90% or more. This coated base material (1) satisfies at least one of the condition (1) and the condition (2) described below.　Condition (1): The maximum thickness of the coating film (3) formed on an edge region of the surface of the base material (5) is larger than the thickness of the coating film (3) formed on an inner region of the surface, the inner region being inside the edge region.　Condition (2): The maximum thickness of the coating film (3) formed on a region of the surface of the base material (5), the region having a projection, is larger than the thickness of the coating film (3) formed on another region of the surface, the another region having no projection.

MURATA TOMOKI (JP)

PCT/JP2023/026615

February 08, 2024

July 20, 2023

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NITERRA CO LTD (JP)

C23C26/00; C25D9/08

JP2020006487A	2020-01-16
JPH11264066A	1999-09-28
JPH0248103A	1990-02-16
US20140178659A1	2014-06-26
JP2000117509A	2000-04-25
JP2012233223A	2012-11-29
JP2010105979A	2010-05-13

GRANDOM PATENT LAW FIRM (JP)

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