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Patents Grants
last 30 patents
Information
Patent Grant
Method for producing sintered R-iron-boron magnet
Patent number
10,748,706
Issue date
Aug 18, 2020
Yantai Zhenghai Magnetic Material Co., Ltd.
Yongjiang Yu
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method for preparing R-Fe-B based sintered magnet
Patent number
9,901,984
Issue date
Feb 27, 2018
Yantai Zhenghai Magnetic Material Co., Ltd.
Qingkai Wang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for preparing R-Fe-B based sintered magnet
Patent number
9,623,482
Issue date
Apr 18, 2017
Yantai Zhenghai Magnetic Material Co., Ltd.
Yongjiang Yu
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
HIGH-COERCIVITY ND-FE-B SERIES SINTERED MAGNET AND PREPARATION METH...
Publication number
20240412903
Publication date
Dec 12, 2024
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Yongjiang YU
B22 - CASTING POWDER METALLURGY
Information
Patent Application
CORROSION-RESISTANT AND HIGH-PERFORMANCE SINTERED NEODYMIUM-IRON-BO...
Publication number
20240331898
Publication date
Oct 3, 2024
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Zhiqiang LI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
R-FE-B SINTERED MAGNET, PREPARATION METHOD AND USE THEREOF
Publication number
20240321489
Publication date
Sep 26, 2024
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Zhaopu XU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LOW-COST HIGH-COERCIVITY LACE-RICH NEODYMIUM-IRON-BORON PERMANENT M...
Publication number
20240274333
Publication date
Aug 15, 2024
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Bingqiang SHI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
EXPANDABLE SINTERED NEODYMIUM-IRON-BORON MAGNET, PREPARATION METHOD...
Publication number
20240274332
Publication date
Aug 15, 2024
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Zhiqiang LI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
PERMANENT MAGNET MATERIAL HAVING MULTILAYER STRUCTURE, PREPARATION...
Publication number
20240212897
Publication date
Jun 27, 2024
Yantai Zhenghai Magnetic Material Co., Ltd.
Zhiqiang LI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
R-T-B BASED PERMANENT MAGNET MATERIAL, PREPARATION METHOD THEREFOR...
Publication number
20240194379
Publication date
Jun 13, 2024
Yantai Zhenghai Magnetic Material Co., Ltd.
Buzhuang PENG
B22 - CASTING POWDER METALLURGY
Information
Patent Application
COMPOSITION OF HEAT-EXPANDABLE MICROSPHERES AND USE THEREOF
Publication number
20240191049
Publication date
Jun 13, 2024
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Zhiqiang LI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
R-T-B BASED PERMANENT MAGNET MATERIAL, PREPARATION METHOD THEREFOR...
Publication number
20240194380
Publication date
Jun 13, 2024
Yantai Zhenghai Magnetic Material Co., Ltd.
Yongjiang YU
B22 - CASTING POWDER METALLURGY
Information
Patent Application
EXPANDED COATING, PREPARATION METHOD AND USE THEREOF, AND PERMANENT...
Publication number
20240101836
Publication date
Mar 28, 2024
Yantai Zhenghai Magnetic Material Co., Ltd.
Zhiqiang LI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SINTERED NEODYMIUM-IRON-BORON PERMANENT MAGNET, PREPARATION METHOD...
Publication number
20240096529
Publication date
Mar 21, 2024
NANTONG ZHENGHAI MAGNET CO., LTD.
Zhaopu XU
B22 - CASTING POWDER METALLURGY
Information
Patent Application
RARE EARTH PERMANENT MAGNET, AND PREPARATION METHOD THEREFOR
Publication number
20240079180
Publication date
Mar 7, 2024
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Zhiqiang LI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
SINTERED R-FE-B PERMANENT MAGNET, PREPARATION METHOD AND USE THEREOF
Publication number
20240055163
Publication date
Feb 15, 2024
NANTONG ZHENGHAI MAGNET CO., LTD.
Wei LI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
COATING COMPOSITION, PREPARATION METHOD THEREFOR AND USE THEREOF
Publication number
20240034892
Publication date
Feb 1, 2024
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Zhiqiang LI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
RARE EARTH PERMANENT MAGNET, PREPARATION METHOD AND USE THEREOF
Publication number
20240013958
Publication date
Jan 11, 2024
Yantai Zhenghai Magnetic Material Co., Ltd.
Yongjiang YU
B22 - CASTING POWDER METALLURGY
Information
Patent Application
NEODYMIUM-IRON-BORON MAGNET, PREPARATION METHOD AND USE THEREOF
Publication number
20230207165
Publication date
Jun 29, 2023
YANTAI ZHENGHAI MAGNETIC MATERIAL CO., LTD.
Bingqiang SHI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHOD FOR PRODUCING SINTERED R-IRON-BORON MAGNET
Publication number
20180061568
Publication date
Mar 1, 2018
Yantai Zhenghai Magnetic Material Co., Ltd.
Yongjiang YU
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR PRODUCING A SINTERED R-IRON-BORON MAGNET
Publication number
20180061540
Publication date
Mar 1, 2018
Yantai Zhenghai Magnetic Material Co., Ltd.
Qingkai WANG
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR PREPARING R-FE-B BASED SINTERED MAGNET
Publication number
20140352847
Publication date
Dec 4, 2014
Yantai Zhenghai Magnetic Material Co., Ltd.
Yongjiang YU
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR PREPARING R-FE-B BASED SINTERED MAGNET
Publication number
20140356217
Publication date
Dec 4, 2014
Yantai Zhenghai Magnetic Material Co., Ltd.
Qingkai WANG
H01 - BASIC ELECTRIC ELEMENTS
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