Patent Assignment
Reel/Frame 059966/0166
Assignment of Assignor's Interest
Recorded: 2022-05-20
Pages: 5
Assignors
XIAMEN TUNGSTEN CO., LTD
Executed: 2022-05-13
FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH CO., LTD
Executed: 2022-05-13
Assignee
FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH CO., LTD.
INDUSTRIAL NEW DEVELOPED ZONE, CHANGTING, FUJIAN, 366300, CHINA
Covered Properties
(15)
Grain Boundary Diffusion Method of R-Fe-B Series Rare Earth Sintered Magnet
R-Fe-B-Based Sintered Magnet with Low B Content and Preparation Method Therefor
R-Fe-B SINTERED MAGNET AND GRAIN BOUNDARY DIFFUSION TREATMENT METHOD THEREOF
Application:
17/626,954 →
Publication:
US 2022/0328245
An N,N-Dihydrocarbonylamide Carboxylic Acid, Preparation Method Therefor and Use Thereof
N,N-Dihydrocarbonyl Amino Carboxylic Acid, Preparation Method Therefor and Use Thereof
Method of Manufacturing a Rare Earth Magnet Alloy Powder, a Rare Earth Magnet Made Therefrom and a Powder Making Device
A Rare Earth Magnet and a Method Fo Manufacturing Compactable Powder for the Rare Earth Magnet Without Jet Milling
Manufacturing Method of an Alloy Powder for Rare Earth Magnet and the Rare Earth Magnet Based on Heat Treatment
Manufacturing Method of Rare Earth Magnet Based on Heat Treatment of Fine Powder
Low-B Rare Earth Magnet
W-Containing R-Fe-B-Cu Sintered Magnet and Quenching Alloy
Quenched Alloy for Rare Earth Magnet and a Manufacturing Method of Rare Earth Magnet
Rare-Earth Magnet Comprising Holmium and Tungsten
COMPOSITE R-Fe-B SERIES RARE EARTH SINTERED MAGNET COMPRISING Pr AND W
W-Containing R-Fe-B-Cu Sintered Magnet and Quenching Alloy
Related Assignments
(20)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
May 11, 2015
From: NAGATA, HIROSHI; WU, CHONGHU
To: XIAMEN TUNGSTEN CO., LTD.
Reel/Frame 035607/0374 →
Assignment of Assignor's Interest
Jul 1, 2015
From: NAGATA, HIROSHI; WU, CHONGHU
To: XIAMEN TUNGSTEN CO., LTD.
Reel/Frame 035948/0997 →
Assignment of Assignor's Interest
Jul 1, 2015
From: NAGATA, HIROSHI; WU, CHONGHU
To: XIAMEN TUNGSTEN CO., LTD.
Reel/Frame 035948/0773 →
Assignment of Assignor's Interest
May 26, 2016
From: NAGATA, HIROSHI; YU, RONG
To: XIAMEN TUNGSTEN CO., LTD.
Reel/Frame 038823/0601 →
Assignment of Assignor's Interest
Jun 20, 2016
From: NAGATA, HIROSHI; YU, RONG
To: XIAMEN TUNGSTEN CO., LTD.
Reel/Frame 038955/0397 →
Assignment of Assignor's Interest
Jan 23, 2017
From: NAGATA, HIROSHI
To: XIAMEN TUNGSTEN CO., LTD.
Reel/Frame 041047/0807 →
Assignment of Assignor's Interest
Sep 28, 2017
From: NAGATA, HIROSHI; ZHANG, JIANHONG
To: XIAMEN TUNGSTEN CO., LTD.,
Reel/Frame 043728/0356 →
Assignment of Assignor's Interest
Mar 28, 2018
From: NAGATA, HIROSHI
To: XIAMEN TUNGSTEN CO., LTD.
Reel/Frame 045374/0726 →
Assignment of Assignor's Interest
Oct 9, 2018
From: LIN, YULIN; NAGATA, HIROSHI; LIAO, ZONGBO; XIE, JUHUA
To: XIAMEN TUNGSTEN CO., LTD.
Reel/Frame 047104/0737 →
Assignment of Assignor's Interest
Feb 21, 2019
From: XIAMEN TUNGSTEN CO., LTD.
To: FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH CO., LTD.
Reel/Frame 048396/0933 →
Assignment of Assignor's Interest
May 15, 2019
From: NAGATA, HIROSHI; YU, RONG; LAN, QIN
To: XIAMEN TUNGSTEN CO., LTD.,
Reel/Frame 049180/0400 →
Assignment of Assignor's Interest
Jul 24, 2020
From: LAN, QIN; ZHOU, YAN; SHI, YAO
To: XIAMEN TUNGSTEN CO., LTD.; FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH CO., LTD.
Reel/Frame 053300/0300 →
Assignment of Assignor's Interest
Jan 13, 2022
From: SHI, DAWEI; ZHONG, KEXIANG; WU, MAOLIN
To: XIAMEN TUNGSTEN CO., LTD.; FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH CO., LTD.
Reel/Frame 058646/0291 →
Assignment of Assignor's Interest
Feb 28, 2022
From: WANG, YANLIANG; XIAO, WENTAO; WU, YUYUAN; LIN, JINCHI
To: XIAMEN TUNGSTEN CO., LTD.
Reel/Frame 059119/0427 →
Assignment of Assignor's Interest
Feb 28, 2022
From: WANG, YANLIANG; XIAO, WENTAO; WU, YUYUAN; LIN, JINCHI
To: XIAMEN TUNGSTEN CO., LTD.
Reel/Frame 059119/0076 →
Assignment of Assignor's Interest
Mar 30, 2022
From: XIAMEN TUNGSTEN CO., LTD.
To: FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH CO., LTD.; XIAMEN TUNGSTEN CO., LTD.
Reel/Frame 059445/0001 →
Change of Name
Dec 20, 2023
From: FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH CO., LTD.
To: FUJIAN GOLDEN DRAGON RARE-EARTH CO., LTD.
Reel/Frame 066124/0473 →
Assignment of Assignor's Interest
Apr 22, 2024
From: NAGATA, HIROSHI
To: XIAMEN TUNGSTEN CO., LTD.
Reel/Frame 067177/0151 →
Change of Name
May 6, 2024
From: FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH CO., LTD.
To: FUJIAN GOLDEN DRAGON RARE-EARTH CO., LTD.
Reel/Frame 067318/0147 →
Assignment of Assignor's Interest
Dec 30, 2024
From: FUJIAN GOLDEN DRAGON RARE-EARTH CO., LTD.
To: FUJIAN GOLDEN DRAGON RARE-EARTH CO., LTD.; GOLDEN DRAGON RARE-EARTH INNOVATION TECHNOLOGY (XIAMEN) CO., LTD.
Reel/Frame 069695/0822 →