Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11016222 | Antireflective structure | Kei Shinotsuka | 2021-05-25 |
| 10073193 | Optical element | Koki Hongo, Kei Shinotsuka, Keiichi Kajita | 2018-09-11 |
| 9915758 | Mold for manufacturing optical element and production method for same, and optical element | Kei Shinotsuka, Yoshihisa Hatta | 2018-03-13 |
| 9911897 | Method for producing substrate for semiconductor light emitting elements, method for manufacturing semiconductor light emitting element, substrate for semiconductor light emitting elements, and semiconductor light emitting element | Yasuhito Kajita, Kei Shinotsuka | 2018-03-06 |
| 9748441 | Dry etching method of manufacturing semiconductor light emitting device substrate | Yoshihisa Hatta, Kei Shinotsuka, Yasuhito Kajita | 2017-08-29 |
| 9515223 | Semiconductor light emitting device substrate including an uneven structure having convex portions, and a flat surface therebetween | Yoshihisa Hatta, Kei Shinotsuka, Yasuhito Kajita | 2016-12-06 |