Zhiqiang Liu

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Kanagawa-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Two-dimensional position encoder
- Patent number 11,467,506
- Issue date Oct 11, 2022
- NIKON CORPORATION
- Zhiqiang Liu
- G01 - MEASURING TESTING
Information Patent Grant
Two-dimensional position encoder
- Patent number 10,921,718
- Issue date Feb 16, 2021
- NIKON CORPORATION
- Zhiqiang Liu
- G01 - MEASURING TESTING
Information Patent Grant
Optical system with a frustrated isotropic block
- Patent number 10,162,087
- Issue date Dec 25, 2018
- Nikon Research Corporation of America
- Eric Peter Goodwin
- G02 - OPTICS
Information Patent Grant
Minimization of Abbe error caused by tip or tilt between an encoder...
- Patent number 9,605,948
- Issue date Mar 28, 2017
- Nikon Corporation
- Eric Peter Goodwin
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
TWO-DIMENSIONAL POSITION ENCODER
- Publication number 20210181643
- Publication date Jun 17, 2021
- Nikon Corporation
- Zhiqiang Liu
- G01 - MEASURING TESTING
Information Patent Application
TWO-DIMENSIONAL POSITION ENCODER
- Publication number 20190187572
- Publication date Jun 20, 2019
- Nikon Corporation
- Zhiqiang Liu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
OPTICAL SYSTEM WITH A FRUSTRATED ISOTROPIC BLOCK
- Publication number 20170292860
- Publication date Oct 12, 2017
- Nikon Research Corporation of America
- Eric Peter Goodwin
- G02 - OPTICS
Information Patent Application
MINIMIZATION OF ABBE ERROR CAUSED BY TIP OR TILT BETWEEN AN ENCODER...
- Publication number 20150276385
- Publication date Oct 1, 2015
- Nikon Corporation
- Eric Peter Goodwin
- G01 - MEASURING TESTING