Hanchuan JI

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Adjustable magnetic buoyancy gravity compensator
- Patent number 10,415,639
- Issue date Sep 17, 2019
- SHANGHAI MICRO ELECTRONICS EQUIPMENT (GROUP) CO., LTD.
- Hanchuan Ji
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Self-damping shutter apparatus for exposure system of photolithogra...
- Patent number 10,133,153
- Issue date Nov 20, 2018
- SHANGHAI MICRO ELECTRONICS EQUIPMENT (GROUP) CO., LTD.
- Shuo Shi
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
ADJUSTABLE MAGNETIC BUOYANCY GRAVITY COMPENSATOR
- Publication number 20180010633
- Publication date Jan 11, 2018
- SHANGHAI MICRO ELECTRONICS EQUIPMENT (GROUP) CO., LTD.
- Hanchuan JI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SELF-DAMPING SHUTTER APPARATUS FOR EXPOSURE SYSTEM OF PHOTOLITHOGRA...
- Publication number 20170343883
- Publication date Nov 30, 2017
- SHANGHAI MICRO ELECTRONICS EQUIPMENT (GROUP) CO., LTD.
- Shuo SHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY