公开(公告)号：US20230017857A1

公开(公告)日：2023-01-19

申请号：US17280675

申请日：2021-03-01

Applicant: TOTO LTD.

Inventor： Yui NODA ,  Saori UKIGAI ,  Yuya SUZUKI

IPC: C23C14/08 ,  C23C14/34 ,  C23C14/54 ,  C23C14/00

Abstract: A part includes a base material, a colored layer on the base material, and a surface layer on the colored layer, wherein the colored layer contains Zr, and optionally, C and/or N, a ratio (HZr oxide/HZr) of a peak height derived from Zr oxide (HZr oxide) to a peak height of Zr (HZr) at an interface of the colored layer on the side of the surface layer is more than 0 and less than 4.5, the interface is a point where Zr is detected by sputtering the part from the side of the surface layer with an XPS depth direction analysis, and the ratio (HZr oxide/HZr) at a point where Ar sputtering is performed for 5 minutes from the interface of the colored layer on the side of the surface layer with the XPS depth direction analysis is 0 to less than 3. The surface layer is water-repellent and exhibits a sputtering time of 5 minutes or less

公开(公告)号：US20250059739A1

公开(公告)日：2025-02-20

申请号：US18932849

申请日：2024-10-31

Applicant: TOTO LTD.

Inventor： Ryojiro HIJIKATA ,  Saori UKIGAI

IPC: E03C1/04 ,  B32B9/04 ,  B32B15/04

Abstract: A part includes a base material and a surface layer thereon, wherein a curved surface of the part has a root mean square height (Sq) of 0.03 μm to 1 μm, a skewness (Ssk) of −1 to 5 or less, and an autocorrelation length (Sal) of 10 μm to 65 μm; and the surface layer is water-repellent, and exhibits a sputtering time of 5 minutes or less, the sputtering time being a time taken from the start of the sputtering to an end point of the surface layer, and the end point being defined, in a profile obtained by an XPS depth direction analysis of the surface layer, as a point where a difference of an absolute value between a carbon atom concentration at a certain measurement point and a carbon atom concentration at a measurement point just prior to the certain measurement point is 1.0 at % or less.

公开(公告)号：US20230025955A1

公开(公告)日：2023-01-26

申请号：US17280659

申请日：2021-03-01

Applicant: TOTO LTD.

Inventor： Ryojiro HIJIKATA ,  Saori UKIGAI

IPC: E03C1/04

Abstract: A part includes a base material and a surface layer on the base material, wherein a curved surface of the part has: a root mean square height (Sq) of 0.03 μm to 1 μm, a skewness (Ssk) of −1 to 5, and an autocorrelation length (Sal) of 10 μm to 65 μm; and the surface layer is water-repellent, and exhibits a sputtering time of 5 minutes or less, the sputtering time being a time taken from the start of the sputtering to an end point of the surface layer, and the end point being defined, in a profile obtained by an XPS depth direction analysis of the surface layer, as a point where a difference of an absolute value between a carbon atom concentration at a certain measurement point and a carbon atom concentration at a measurement point just prior to the certain measurement point is 1.0 at % or less.

公开(公告)号：US20230012781A1

公开(公告)日：2023-01-19

申请号：US17280705

申请日：2021-03-01

Applicant: TOTO LTD.

Inventor： Yuya SUZUKI ,  Saori UKIGAI ,  Hironori HATONO ,  Atsushi TERAMOTO ,  Yuichi TAKAMATSU ,  Hana ISHII

IPC: C23C14/54 ,  C23C14/34 ,  C23C14/00

Abstract: A part includes a base material, a colored layer, an intermediate layer, and a water-repellent-surface layer. The colored layer contains 35 at % to 99 at % of C, 0 at % to less than 40 at % of Cr, 0 at % to less than 15 at % of N, and more than 0 at % to less than 15 at % of O. The intermediate layer contains at least one metal atom selected from Cr, Zr, and Si; and an oxygen atom. The intermediate layer exhibits a sputtering time of 0.5 minutes or more to 9 minutes or less