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公开(公告)号：US20210207349A1
公开(公告)日：2021-07-08
申请号：US17212660
申请日：2021-03-25
Applicant: TOTO LTD.
Inventor： Saori Ukigai , Ryojiro Hijikata , Ryo Koga
Abstract: Provided is a faucet fixture to which antifouling functionality is imparted without causing localized corrosion. The present invention is a faucet fixture comprising a metal base material and a plating layer partially formed on the surface of the metal base material. The metal base material contains at least one metal element species selected from the group consisting of copper, zinc, and tin. The plating layer contains at least one metal element species selected from the group consisting of chromium and nickel. An organic layer is further provided on the plating layer, with a passive layer present on the surface of the plating layer being interposed therebetween. The organic layer is bonded to the passive layer via the bonding of a metal element (M), which constitutes the passive layer, and a phosphorus atom (P) in at least one type of group (X) selected from the group consisting of phosphonate groups, phosphate groups, and phosphinate groups, with an oxygen atom (O) interposed therebetween (M-O—P bond). Group X is bonded to a group R (wherein R is a hydrocarbon group, or a group comprising an atom other than carbon at one or two locations within a hydrocarbon group). The phosphorus atom concentration in the portion of the surface of the metal base material on which the plating layer is not formed is lower than the phosphorus atom concentration in the organic layer provided on the plating layer.
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公开(公告)号：US20210277522A1
公开(公告)日：2021-09-09
申请号：US17212537
申请日：2021-03-25
Applicant: TOTO LTD.
Inventor： Saori Ukigai , Ryojiro Hijikata , Ryo Koga
Abstract: To provide a sanitary facility member having excellent ease of contamination removal and excellent persistence of ease of contamination removal. A sanitary facility member including: a base material, at least the surface of which includes a metal element; a metal oxide layer formed on the surface of the base material; and an organic layer provided on the metal oxide layer; wherein the metal element is at least one element selected from the group consisting of Cr, Zr, and Ti, the metal oxide layer includes at least the metal element and an oxygen element, and the organic layer is bonded to the metal oxide layer by bonding (M-O—P bonding) of the metal element (M) and a phosphorus atom (P) of at least one group (X) selected from a phosphonic acid group, a phosphoric acid group, and a phosphinic acid group via an oxygen atom (O), the group X being bonded to a group R (where R is a hydrocarbon or a group having an atom other than carbon in 1 or 2 locations in a hydrocarbon group).
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公开(公告)号：US20180209550A1
公开(公告)日：2018-07-26
申请号：US15870327
申请日：2018-01-12
Applicant: TOTO LTD.
Inventor： Saori Ukigai , Atsushi Teramoto , Yuji Naka
Abstract: Disclosed is a faucet valve including: a first valve body including a first slide surface, and formed from an alumina-based sintered body; and a second valve body including a second slide surface, and formed from an alumina-based sintered body, the first and second slide surfaces at least partially being in contact with each other with water in between. At least part of the second slide body is formed from a first amorphous carbon layer. The hardness of the first amorphous carbon layer is equal to or less than that of the alumina-based sintered body forming the first valve body. In the first amorphous carbon layer, a ratio (ID/IG) of a D peak to a G peak, measured by Raman spectroscopy, is greater than 0.5 but less than 1.9.
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公开(公告)号：US12157993B2
公开(公告)日：2024-12-03
申请号：US17280659
申请日：2021-03-01
Applicant: TOTO LTD.
Inventor： Ryojiro Hijikata , Saori Ukigai
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.
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公开(公告)号：US11795671B2
公开(公告)日：2023-10-24
申请号：US17212660
申请日：2021-03-25
Applicant: TOTO LTD.
Inventor： Saori Ukigai , Ryojiro Hijikata , Ryo Koga
CPC classification number: E03C1/10 , E03C1/0404 , C23C22/03
Abstract: Provided is a faucet fixture to which antifouling functionality is imparted without causing localized corrosion. The present invention is a faucet fixture comprising a metal base material and a plating layer partially formed on the surface of the metal base material. The metal base material contains at least one metal element species selected from the group consisting of copper, zinc, and tin. The plating layer contains at least one metal element species selected from the group consisting of chromium and nickel. An organic layer is further provided on the plating layer, with a passive layer present on the surface of the plating layer being interposed therebetween. The organic layer is bonded to the passive layer via the bonding of a metal element (M), which constitutes the passive layer, and a phosphorus atom (P) in at least one type of group (X) selected from the group consisting of phosphonate groups, phosphate groups, and phosphinate groups, with an oxygen atom (O) interposed therebetween (M-O—P bond). Group X is bonded to a group R (wherein R is a hydrocarbon group, or a group comprising an atom other than carbon at one or two locations within a hydrocarbon group). The phosphorus atom concentration in the portion of the surface of the metal base material on which the plating layer is not formed is lower than the phosphorus atom concentration in the organic layer provided on the plating layer.
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Patent Agency Ranking
公开(公告)号：US12188132B2
公开(公告)日：2025-01-07
申请号：US17212537
申请日：2021-03-25
Applicant: TOTO LTD.
Inventor： Saori Ukigai , Ryojiro Hijikata , Ryo Koga
Abstract: To provide a sanitary facility member having excellent ease of contamination removal and excellent persistence of ease of contamination removal. A sanitary facility member including: a base material, at least the surface of which includes a metal element; a metal oxide layer formed on the surface of the base material; and an organic layer provided on the metal oxide layer; wherein the metal element is at least one element selected from the group consisting of Cr, Zr, and Ti, the metal oxide layer includes at least the metal element and an oxygen element, and the organic layer is bonded to the metal oxide layer by bonding (M-O—P bonding) of the metal element (M) and a phosphorus atom (P) of at least one group (X) selected from a phosphonic acid group, a phosphoric acid group, and a phosphinic acid group via an oxygen atom (O), the group X being bonded to a group R (where R is a hydrocarbon or a group having an atom other than carbon in 1 or 2 locations in a hydrocarbon group).
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公开(公告)号：US10697552B2
公开(公告)日：2020-06-30
申请号：US15870327
申请日：2018-01-12
Applicant: TOTO LTD.
Inventor： Saori Ukigai , Atsushi Teramoto , Yuji Naka
IPC: B32B9/00 , F16K11/06 , F16K27/04 , F16K25/02 , C04B41/89 , C23C14/02 , C04B41/52 , F16K25/00 , C04B41/90 , C04B41/00 , C23C16/26 , C23C16/02 , C23C14/06 , F16K11/00 , C04B111/00
Abstract: Disclosed is a faucet valve including: a first valve body including a first slide surface, and formed from an alumina-based sintered body; and a second valve body including a second slide surface, and formed from an alumina-based sintered body, the first and second slide surfaces at least partially being in contact with each other with water in between. At least part of the second slide body is formed from a first amorphous carbon layer. The hardness of the first amorphous carbon layer is equal to or less than that of the alumina-based sintered body forming the first valve body. In the first amorphous carbon layer, a ratio (ID/IG) of a D peak to a G peak, measured by Raman spectroscopy, is greater than 0.5 but less than 1.9.
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公开(公告)号：US10029233B2
公开(公告)日：2018-07-24
申请号：US15049269
申请日：2016-02-22
Applicant: Toto, Ltd.
Inventor： Saori Ukigai , Hironori Hatono , Atsushi Teramoto , Mayui Noborisaka , Kazuhiro Ishikawa , Satoshi Shimizu , Nobuhiko Kanekuni
Abstract: Provided is a wet area member for use in an indoor wet environment, comprising: a base member; and an amorphous carbon layer formed on a surface of the base member and mainly containing carbon atoms, wherein the amorphous carbon layer further contains hydrogen atoms, and the amorphous carbon layer contains the hydrogen atoms in a predetermined amount or more and has a density lower than a predetermined value so as to be capable of inhibiting sticking of water scale for a long period. This makes it possible to obtain a wet area member which exhibits a high stain release property and a high stain release durability.
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公开(公告)号：US20250075332A1
公开(公告)日：2025-03-06
申请号：US18954881
申请日：2024-11-21
Applicant: TOTO LTD.
Inventor： Saori Ukigai , Ryojiro Hijikata , Ryo Koga
Abstract: To provide a sanitary facility member having excellent ease of contamination removal and excellent persistence of ease of contamination removal. A sanitary facility member including: a base material, at least the surface of which includes a metal element; a metal oxide layer formed on the surface of the base material; and an organic layer provided on the metal oxide layer; wherein the metal element is at least one element selected from the group consisting of Cr, Zr, and Ti, the metal oxide layer includes at least the metal element and an oxygen element, and the organic layer is bonded to the metal oxide layer by bonding (M-O—P bonding) of the metal element (M) and a phosphorus atom (P) of at least one group (X) selected from a phosphonic acid group, a phosphoric acid group, and a phosphinic acid group via an oxygen atom (O), the group X being bonded to a group R (where R is a hydrocarbon or a group having an atom other than carbon in 1 or 2 locations in a hydrocarbon group).
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公开(公告)号：US12221690B2
公开(公告)日：2025-02-11
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: C23C14/00 , B32B15/04 , B32B15/08 , B32B18/00 , C09K3/18 , C23C14/02 , C23C14/06 , C23C14/08 , C23C14/10 , C23C14/34 , C23C14/54 , C23C28/00 , C23C30/00 , B05D1/28 , B05D5/08
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.
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