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Patent Agency Ranking
公开(公告)号：US20170297004A1
公开(公告)日：2017-10-19
申请号：US15482961
申请日：2017-04-10
Applicant: Cataler Corporation
Inventor： Sho Hoshino , Akimasa Hirai , Kenichi Taki , Satoshi Matsueda , Yuji Yabuzaki
IPC: B01J23/46 , B01J37/02 , B01J37/04 , F01N3/10 , B01D53/94 , B01J21/06 , B01J35/00 , B01J23/44 , B01J23/30 , B01J23/10 , B01J35/04 , B01J21/12
CPC classification number: F01N3/10 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2092 , B01D2255/50 , B01D2255/902 , B01D2255/908 , B01D2255/912 , B01D2255/9202 , B01J21/063 , B01J23/63 , B01J23/6527 , B01J35/04 , B01J37/0215 , B01J37/0234 , B01J37/0244 , B01J37/033 , B01J2523/00 , F01N3/2828 , F01N2370/02 , F01N2510/0684 , B01J2523/31 , B01J2523/3712 , B01J2523/47 , B01J2523/48 , B01J2523/824 , B01J2523/3706 , B01J2523/36 , B01J2523/822 , B01J2523/828 , B01J2523/69 , B01J2523/41
Abstract: An exhaust gas-purifying catalyst of the present invention comprises a substrate, and one or more catalytic layers provided on the substrate, wherein at least one of the catalytic layers (i) contains a precious metal, alumina, and an acidic oxide element, (ii) has a correlation coefficient ρAl,AE of 0.70 or more, and (iii) has a correlation coefficient ρPM,AE of 0.70 or more.
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公开(公告)号：US20170239646A1
公开(公告)日：2017-08-24
申请号：US15434627
申请日：2017-02-16
Applicant: Cataler Corporation
Inventor： Satoshi Matsueda , Akimasa Hirai , Kenichi Taki , Yuji Yabuzaki , Sho Hoshino
CPC classification number: B01J23/63 , B01D53/944 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/20707 , B01D2255/20715 , B01D2255/20776 , B01D2255/30 , B01D2255/407 , B01D2255/908 , B01D2255/9202 , B01J23/002 , B01J23/6527 , B01J35/002 , B01J35/023 , B01J37/0201 , B01J37/0248 , B01J2523/00 , Y02T10/22 , B01J2523/36 , B01J2523/3712 , B01J2523/47 , B01J2523/48 , B01J2523/822 , B01J2523/828 , B01J2523/824 , B01J2523/3706 , B01J2523/41 , B01J2523/69
Abstract: An exhaust gas-purifying catalyst material includes first oxide particles having an average particle diameter Dav of 1 μm to 95 μm and having an oxygen storage capacity, second oxide particles having an average particle diameter Dav of 0.05 μm to 0.5 μm, containing a metal element, and having no oxygen storage capacity, precious metal particles, and acidic oxide particles. The material has a correlation coefficient ρ of 0.45 or more obtained using first characteristic X-ray intensity for the metal element contained in the second oxide particle, second characteristic X-ray intensity for an element other than oxygen contained in the acidic oxide particle, and third characteristic X-ray intensity for a precious metal element contained in the precious metal particle.
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公开(公告)号：US11352924B2
公开(公告)日：2022-06-07
申请号：US17251942
申请日：2019-06-26
Applicant: CATALER CORPORATION
Inventor： Chihiro Kasuya , Yuji Yabuzaki , Masaaki Kawai , Mitsuyoshi Okada
Abstract: An exhaust gas purification catalyst device has catalyst coating layers, which extend from the upstream side to the downstream side of the exhaust gas flow. The catalyst coating layers each have at least three zones present in order from the upstream side to the downstream side of the exhaust gas flow, and each of these at least three zones is an oxidation catalyst zone or a reduction catalyst zone. In the uppermost layer of an oxidation catalyst zone, the total number of atoms of platinum and palladium is greater than the number of atoms of rhodium; in the upper most layer of a reduction catalyst zone, the number of atoms of rhodium is greater than the total number of atoms of platinum and palladium. The oxidation catalyst zones and the reduction catalyst zones alternate at least twice in the exhaust gas flow direction.
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公开(公告)号：US10099204B2
公开(公告)日：2018-10-16
申请号：US15482961
申请日：2017-04-10
Applicant: Cataler Corporation
Inventor： Sho Hoshino , Akimasa Hirai , Kenichi Taki , Satoshi Matsueda , Yuji Yabuzaki
IPC: B01J23/00 , B01J23/46 , B01J23/44 , B01J23/10 , B01J21/06 , B01J23/30 , B01J21/12 , B01J35/00 , B01J35/04 , B01J37/04 , B01J37/02 , B01D53/94 , F01N3/10
Abstract: An exhaust gas-purifying catalyst of the present invention comprises a substrate, and one or more catalytic layers provided on the substrate, wherein at least one of the catalytic layers (i) contains a precious metal, alumina, and an acidic oxide element, (ii) has a correlation coefficient ρAl,AE of 0.70 or more, and (iii) has a correlation coefficient ρPM,AE of 0.70 or more.
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公开(公告)号：US09789469B2
公开(公告)日：2017-10-17
申请号：US15434627
申请日：2017-02-16
Applicant: Cataler Corporation
Inventor： Satoshi Matsueda , Akimasa Hirai , Kenichi Taki , Yuji Yabuzaki , Sho Hoshino
IPC: B01J21/06 , B01J21/08 , B01J23/10 , B01J23/40 , B01J23/42 , B01J23/44 , B01J23/46 , B01J23/54 , B01J23/63 , B01J35/04 , B01D53/94
CPC classification number: B01J23/63 , B01D53/944 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/20707 , B01D2255/20715 , B01D2255/20776 , B01D2255/30 , B01D2255/407 , B01D2255/908 , B01D2255/9202 , B01J23/002 , B01J23/6527 , B01J35/002 , B01J35/023 , B01J37/0201 , B01J37/0248 , B01J2523/00 , Y02T10/22 , B01J2523/36 , B01J2523/3712 , B01J2523/47 , B01J2523/48 , B01J2523/822 , B01J2523/828 , B01J2523/824 , B01J2523/3706 , B01J2523/41 , B01J2523/69
Abstract: An exhaust gas-purifying catalyst material includes first oxide particles having an average particle diameter Dav of 1 μm to 95 μm and having an oxygen storage capacity, second oxide particles having an average particle diameter Dav of 0.05 μm to 0.5 μm, containing a metal element, and having no oxygen storage capacity, precious metal particles, and acidic oxide particles. The material has a correlation coefficient ρ of 0.45 or more obtained using first characteristic X-ray intensity for the metal element contained in the second oxide particle, second characteristic X-ray intensity for an element other than oxygen contained in the acidic oxide particle, and third characteristic X-ray intensity for a precious metal element contained in the precious metal particle.
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