Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10146179 | Exposure method of holographic grating and exposure light path | Kai Ni, Rui Tian, Jinchao Pang, Mingfei Xu, Hao Dong +1 more | 2018-12-04 |
| 10061122 | Optimized design method for manufacturing fresnel grating | Jinchao ZHANG, Xinghui LI, Kai Ni, Jinchao Pang, Haifei Hu +4 more | 2018-08-28 |
| 9995086 | Center-pillared full-face shaft drilling machine | Hua Zhao, Jianbin Li, Kleuters Nikolaus, Ningchuan Zhang, Wei Xiao +4 more | 2018-06-12 |