Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |