Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10873029 | Method for producing vapor deposition mask, vapor deposition mask preparation body, method for producing organic semiconductor element, method for producing organic EL display, and vapor deposition mask | Toshihiko Takeda, Kumiko HOKARI, Katsunari Obata | 2020-12-22 |
| 10651386 | Method for producing vapor deposition mask, vapor deposition mask preparation body, method for producing organic semiconductor element, method for producing organic EL display, and vapor deposition mask | Toshihiko Takeda, Kumiko HOKARI, Katsunari Obata | 2020-05-12 |