Changgua ZHEN

Person

Hangzhou, Zhejiang, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Liquid guiding component and using method and application thereof
- Patent number 11,839,886
- Issue date Dec 12, 2023
- Najing Technology Corporation Limited
- Changgua Zhen
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Ink formulation, optoelectronic devices, and preparation methods of...
- Patent number 11,453,795
- Issue date Sep 27, 2022
- Najing Technology Corporation Limited
- Haitao Guo
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Manufacturing method for light emitting device, light emitting devi...
- Patent number 10,943,781
- Issue date Mar 9, 2021
- Najing Technology Corporation Limited
- Changgua Zhen
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
LIGHT-EMITTING DEVICE
- Publication number 20240147764
- Publication date May 2, 2024
- Najing Technology Corporation Limited
- Huajin REN
Information Patent Application
Manufacturing method for light emitting device, light emitting devi...
- Publication number 20230276685
- Publication date Aug 31, 2023
- NAJING TECHNOLOGY CORPORATION LIMITED
- Changgua ZHEN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LIGHT-EMITTING DEVICE, DISPLAY APPARATUS, AND LIGHTING APPARATUS HA...
- Publication number 20220416211
- Publication date Dec 29, 2022
- Najing Technology Corporation Limited
- Changgua ZHEN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Manufacturing method for light emitting device, light emitting devi...
- Publication number 20220077433
- Publication date Mar 10, 2022
- NAJING TECHNOLOGY CORPORATION LIMITED
- Changgua ZHEN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
INK FORMULATION, OPTOELECTRONIC DEVICES, AND PREPARATION METHODS OF...
- Publication number 20210355337
- Publication date Nov 18, 2021
- Najing Technology Corporation Limited
- Haitao GUO
- B82 - NANO-TECHNOLOGY
Information Patent Application
LIQUID GUIDING COMPONENT AND USING METHOD AND APPLICATION THEREOF
- Publication number 20200246810
- Publication date Aug 6, 2020
- Najing Technology Corporation Limited
- Changgua ZHEN
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
Manufacturing method for light emitting device, light emitting devi...
- Publication number 20190214604
- Publication date Jul 11, 2019
- Najing Technology Corporation Limited
- Changgua ZHEN
- H01 - BASIC ELECTRIC ELEMENTS

Changgua ZHEN

Person

Patents Grantslast 30 patents

Liquid guiding component and using method and application thereof

Ink formulation, optoelectronic devices, and preparation methods of...

Manufacturing method for light emitting device, light emitting devi...

Patents Applicationslast 30 patents

LIGHT-EMITTING DEVICE

Manufacturing method for light emitting device, light emitting devi...

LIGHT-EMITTING DEVICE, DISPLAY APPARATUS, AND LIGHTING APPARATUS HA...

Manufacturing method for light emitting device, light emitting devi...

INK FORMULATION, OPTOELECTRONIC DEVICES, AND PREPARATION METHODS OF...

LIQUID GUIDING COMPONENT AND USING METHOD AND APPLICATION THEREOF

Manufacturing method for light emitting device, light emitting devi...