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Patents Grants
last 30 patents
Information
Patent Grant
Polyurethane polishing layer, polishing pad comprising polishing la...
Patent number
11,179,822
Issue date
Nov 23, 2021
HUBEI DINGHUI MICROELECTRONICS MATERIALS CO., LTD
Shunquan Zhu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Weather-resistant polishing pad
Patent number
10,414,025
Issue date
Sep 17, 2019
HUBEI DINGLONG CO., LTD.
Shunquan Zhu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Colored toner and method for preparing the same
Patent number
9,012,121
Issue date
Apr 21, 2015
Hubei Dinglong Chemical Co., Ltd.
Shunquan Zhu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Bicomponent developing agent
Patent number
8,822,119
Issue date
Sep 2, 2014
Hubei Dinglong Chemical Co., Ltd.
Shunquan Zhu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method for producing charge control agent and toner
Patent number
8,445,651
Issue date
May 21, 2013
Hubei Dinglong Chemical Co., Ltd.
Shunquan Zhu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Charge control agent and toner comprising the same
Patent number
7,943,688
Issue date
May 17, 2011
Hubei Dinglong Chemical Co., Ltd.
Delian Yi
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
POLYURETHANE POLISHING LAYER, POLISHING PAD COMPRISING POLISHING LA...
Publication number
20200215661
Publication date
Jul 9, 2020
HUBEI DINGHUI MICROELECTRONICS MATERIALS CO., LTD
Shunquan ZHU
B24 - GRINDING POLISHING
Information
Patent Application
WEATHER-RESISTANT POLISHING PAD
Publication number
20170043451
Publication date
Feb 16, 2017
HUBEI DINGLONG CHEMICAL CO., LTD
Shunquan ZHU
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
COLORED TONER AND METHOD FOR PREPARING THE SAME
Publication number
20130344426
Publication date
Dec 26, 2013
HUBEI DINGLONG CHEMICAL CO., LTD
Shunquan ZHU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
BICOMPONENT DEVELOPING AGENT
Publication number
20120295189
Publication date
Nov 22, 2012
HUBEI DINGLONG CHEMICAL CO., LTD
Shunquan ZHU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
METHOD FOR PRODUCING TONER
Publication number
20110165511
Publication date
Jul 7, 2011
Shunquan ZHU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
METHOD FOR PRODUCING CHARGE CONTROL AGENT AND TONER
Publication number
20100105884
Publication date
Apr 29, 2010
HUBEI DINGLONG CHEMICAL CO., LTD
Shunquan ZHU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER OF STATIC CHARGE IMAGE AND METHOD FOR MANUFACTURING THE SAME
Publication number
20090226832
Publication date
Sep 10, 2009
HUBEI DINGLONG CHEMICAL CO., LTD
Shunquan ZHU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CHARGE CONTROL AGENT AND TONER COMPRISING THE SAME
Publication number
20080255282
Publication date
Oct 16, 2008
HUBEI DINGLONG CHEMICAL CO., LTD
Delian YI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...