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CPC
C23C8/26
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Parent Industries
C
CHEMISTRY METALLURGY
C23
Surface treatment
C23C
COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
C23C8/00
Solid state diffusion of only non-metal elements into metallic material surfaces Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating
Current Industry
C23C8/26
of ferrous surfaces
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Patents Grants
last 30 patents
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Patent Grant
Lumen stent and preform thereof, and methods for preparing the lume...
Patent number
11,969,368
Issue date
Apr 30, 2024
Biotyx Medical (Shenzhen) Co., Ltd.
Deyuan Zhang
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Steel for nitrocarburizing and nitrocarburized component, and metho...
Patent number
11,959,177
Issue date
Apr 16, 2024
JFE Steel Corporation
Masayuki Kasai
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Sm—Fe—N-based magnetic material and manufacturing method thereof
Patent number
11,935,676
Issue date
Mar 19, 2024
Toyota Jidosha Kabushiki Kaisha
Daisuke Ichigozaki
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Fuel system components
Patent number
11,873,547
Issue date
Jan 16, 2024
Cummins Inc.
Yang Su
C21 - METALLURGY OF IRON
Information
Patent Grant
Iron-based nanoparticles and grains
Patent number
11,837,393
Issue date
Dec 5, 2023
Regents of The University of Minnesota
Jian-Ping Wang
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Roughly-shaped steel material for nitrided part, and nitrided part
Patent number
11,827,963
Issue date
Nov 28, 2023
Nippon Steel Corporation
Masato Yuya
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Housing and device
Patent number
11,809,140
Issue date
Nov 7, 2023
Seiko Epson Corporation
Koki Takasawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Surface hardening treatment device and surface hardening treatment...
Patent number
11,781,209
Issue date
Oct 10, 2023
PARKER NETSUSHORI KOGYO CO., LTD.
Yasushi Hiraoka
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Precipitation hardening stainless steel and its manufacture
Patent number
11,767,569
Issue date
Sep 26, 2023
OVAKO SWEDEN AB
Jan-Erik Andersson
C21 - METALLURGY OF IRON
Information
Patent Grant
Surface treatment for a wellbore drill bit
Patent number
11,761,049
Issue date
Sep 19, 2023
Halliburton Energy Services, Inc.
Daniel Brendan Voglewede
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Nitriding apparatus for manufacturing a grain-oriented electrical s...
Patent number
11,761,074
Issue date
Sep 19, 2023
JFE Steel Corporation
Yukihiro Shingaki
C21 - METALLURGY OF IRON
Information
Patent Grant
Iron nitride permanent magnet and technique for forming iron nitrid...
Patent number
11,742,117
Issue date
Aug 29, 2023
Regents of The University of Minnesota
Jian-Ping Wang
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Magnetic material comprising Fe—Ni ordered alloy and method for man...
Patent number
11,667,998
Issue date
Jun 6, 2023
Denso Corporation
Eiji Watanabe
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Chemical activation of self-passivating metals
Patent number
11,649,538
Issue date
May 16, 2023
Swagelok Company
Cyprian A. W. Illing
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Medical instrument, medical device, method of manufacturing medical...
Patent number
11,633,301
Issue date
Apr 25, 2023
Hatta Kogyo Co., Ltd.
Junichi Fukui
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Precipitation hardening steel and its manufacture
Patent number
11,624,098
Issue date
Apr 11, 2023
OVAKO SWEDEN AB
Jan-Erik Andersson
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
High fatigue strength components requiring areas of high hardness
Patent number
11,584,969
Issue date
Feb 21, 2023
Metal Improvement Company, LLC
Lloyd A. Hackel
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Preservation of strain in iron nitride magnet
Patent number
11,581,113
Issue date
Feb 14, 2023
Regents of The University of Minnesota
Jian-Ping Wang
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Cold-rolled flat steel product for packaging materials
Patent number
11,560,608
Issue date
Jan 24, 2023
Thyssenkrupp Rasselstein GmbH
Burkhard Kaup
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Iron nitride powder with anisotropic shape
Patent number
11,511,344
Issue date
Nov 29, 2022
Regents of The University of Minnesota
Jian-Ping Wang
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Annealing separator for oriented electrical steel sheet, oriented e...
Patent number
11,505,843
Issue date
Nov 22, 2022
Posco
Chang Soo Park
C21 - METALLURGY OF IRON
Information
Patent Grant
Hybrid process for enhanced surface hardening
Patent number
11,491,541
Issue date
Nov 8, 2022
APOLLO MACHINE & WELDING LTD.
Dakota Z. Jones
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Heat treatment method for a vehicle component
Patent number
11,479,842
Issue date
Oct 25, 2022
Hyundai Motor Company
Dong-Hwi Kim
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Enhanced activation of self-passivating metals
Patent number
11,473,183
Issue date
Oct 18, 2022
Swagelok Company
Peter C. Williams
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method for manufacturing metal ring laminate
Patent number
11,473,184
Issue date
Oct 18, 2022
Toyota Jidosha Kabushiki Kaisha
Koji Nishida
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Grain oriented electrical steel sheet
Patent number
11,466,338
Issue date
Oct 11, 2022
Nippon Steel Corporation
Masato Yasuda
C21 - METALLURGY OF IRON
Information
Patent Grant
Lumen stent and preform thereof, and methods for preparing lumen st...
Patent number
11,389,308
Issue date
Jul 19, 2022
Biotyx Medical (Shenzhen) Co. Ltd.
Deyuan Zhang
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Nitrided part
Patent number
11,371,132
Issue date
Jun 28, 2022
Nippon Steel Corporation
Takahide Umehara
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Nitriding treatment method of steel member
Patent number
11,359,271
Issue date
Jun 14, 2022
Dowa Thermotech Co., Ltd.
Yuichiro Shimizu
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Magnetic material comprising FeNi ordered alloy and manufacturing m...
Patent number
11,361,887
Issue date
Jun 14, 2022
Denso Corporation
Sho Goto
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Patents Applications
last 30 patents
Information
Patent Application
VALVE SPRING
Publication number
20240077123
Publication date
Mar 7, 2024
NIPPON STEEL CORPORATION
Shinya TERAMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
IRON-BASED NANOPARTICLES AND GRAINS
Publication number
20240055165
Publication date
Feb 15, 2024
Regents of the University of Minnesota
Jian-Ping WANG
B22 - CASTING POWDER METALLURGY
Information
Patent Application
ROLLING MEMBER AND ROLLING BEARING
Publication number
20230383790
Publication date
Nov 30, 2023
NTN Corporation
Miyu SATO
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
METHOD FOR PREPARING BAINITE HOT-WORKING DIE
Publication number
20230366055
Publication date
Nov 16, 2023
Hebei Vocational University of Industry and Technology
Shuang LI
C21 - METALLURGY OF IRON
Information
Patent Application
IRON NITRIDE PERMANENT MAGNET AND TECHNIQUE FOR FORMING IRON NITRID...
Publication number
20230352219
Publication date
Nov 2, 2023
Regents of the University of Minnesota
Jian-Ping Wang
B22 - CASTING POWDER METALLURGY
Information
Patent Application
ROLLING DIE AND METHOD FOR MANUFACTURING SAME
Publication number
20230302513
Publication date
Sep 28, 2023
OSG CORPORATION
Teruya Hisada
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
DAMPER SPRING
Publication number
20230296152
Publication date
Sep 21, 2023
NIPPON STEEL CORPORATION
Shinya TERAMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
FUEL SYSTEM COMPONENTS
Publication number
20230243025
Publication date
Aug 3, 2023
Cummins Inc.
Yang Su
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
IRON-BASED SINTERED ALLOY MATERIAL AND PRODUCTION METHOD THEREFOR
Publication number
20230211413
Publication date
Jul 6, 2023
Resonac Corporation
Hiroshi OMORI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
STEEL SHEET AND METHOD OF MANUFACTURING A STEEL SHEET FOR PACKAGING
Publication number
20230175092
Publication date
Jun 8, 2023
THYSSENKRUPP RASSELSTEIN GMBH
Laura PÖRZGEN
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR MANUFACTURING A PART OF NITRIDED STEEL
Publication number
20230103806
Publication date
Apr 6, 2023
SAFRAN
Jawad BADREDDINE
C21 - METALLURGY OF IRON
Information
Patent Application
L10 TYPE IRON-NICKEL ORDERED ALLOY AND METHOD OF MANUFACTURING L10...
Publication number
20230099171
Publication date
Mar 30, 2023
DENSO CORPORATION
Hiroaki KURA
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
ANNEALING SEPARATOR FOR ORIENTED ELECTRICAL STEEL SHEET, ORIENTED E...
Publication number
20230042915
Publication date
Feb 9, 2023
POSCO
Chang Soo PARK
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR TREATING A PART MADE OF FERROUS METAL, AND PART MADE OF...
Publication number
20230029324
Publication date
Jan 26, 2023
HYDROMECANIQUE ET FROTTEMENT
Luc Hermann
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
IRON NITRIDE POWDER WITH ANISOTROPIC SHAPE
Publication number
20230024845
Publication date
Jan 26, 2023
Regents of the University of Minnesota
Jian-Ping Wang
B22 - CASTING POWDER METALLURGY
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Publication number
20230025678
Publication date
Jan 26, 2023
POSCO
Hyung Don JOO
C21 - METALLURGY OF IRON
Information
Patent Application
ENHANCED ACTIVATION OF SELF-PASSIVATING METALS
Publication number
20230015135
Publication date
Jan 19, 2023
SWAGELOK COMPANY
Peter C. Williams
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
FERRITIC STAINLESS STEEL SHEET
Publication number
20220389555
Publication date
Dec 8, 2022
NIPPON STEEL STAINLESS STEEL CORPORATION
Kou NISHIMURA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING A SINTERED COMPONENT WITH A TOOTHING
Publication number
20220390000
Publication date
Dec 8, 2022
MIBA SINTER AUSTRIA GMBH
Horst ROESSLER
B22 - CASTING POWDER METALLURGY
Information
Patent Application
Nitriding Treatment Method and Nitriding Treatment Apparatus
Publication number
20220380881
Publication date
Dec 1, 2022
Hitachi, Ltd
Hisamitsu HATOU
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
ACTIVATION OF SELF-PASSIVATING METALS USING REAGENT COATINGS FOR LO...
Publication number
20220364216
Publication date
Nov 17, 2022
Swagelok Company
Frank Ernst
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Lumen Stent and Preform thereof, and Methods for Preparing the Lume...
Publication number
20220339012
Publication date
Oct 27, 2022
Biotyx Medical (Shenzhen) Co., Ltd.
Deyuan Zhang
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
SOFT MAGNETIC STEEL SHEET, METHOD FOR MANUFACTURING THE SOFT MAGNET...
Publication number
20220328225
Publication date
Oct 13, 2022
Hitachi, Ltd
Matahiro KOMURO
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
STEEL FOR HOT STAMP DIE, HOT STAMP DIE AND MANUFACTURING METHOD THE...
Publication number
20220316038
Publication date
Oct 6, 2022
Hitachi Metals, Ltd.
TAKAYUKI HIRASHIGE
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
STEEL WIRE AND SPRING
Publication number
20220307115
Publication date
Sep 29, 2022
Sumitomo Electric Industries, Ltd.
Tetsuya NAKAJIMA
C21 - METALLURGY OF IRON
Information
Patent Application
Screen Cloth with Increased Wear Resistance and Method for Increasi...
Publication number
20220220599
Publication date
Jul 14, 2022
Allgaier Werke GmbH
Mathias Trojosky
D03 - WEAVING
Information
Patent Application
COERCIVITY-ENHANCED IRON NITRIDE NANOPARTICLES WITH HIGH SATURATION...
Publication number
20220215991
Publication date
Jul 7, 2022
NIRON MAGNETICS, INC.
Francis JOHNSON
B22 - CASTING POWDER METALLURGY
Information
Patent Application
ANISOTROPIC MAGNETIC POWDER, ANISOTROPIC MAGNET AND METHOD FOR MANU...
Publication number
20220189669
Publication date
Jun 16, 2022
TDK Corporation
Suguru SATOH
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
HEAT TREATMENT METHOD FOR A VEHICLE COMPONENT
Publication number
20220178010
Publication date
Jun 9, 2022
Hyundai Motor Company
Dong-Hwi Kim
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Sm-Fe-N-BASED MAGNETIC MATERIAL AND MANUFACTURING METHOD THEREOF
Publication number
20220093298
Publication date
Mar 24, 2022
Toyota Jidosha Kabushiki Kaisha
Daisuke ICHIGOZAKI
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...