Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10084134 | Method for stretching vapor deposition mask, method for producing frame-equipped vapor deposition mask, method for producing organic semiconductor element, and stretching apparatus | Katsunari Obata, Hideyuki Okamoto, Toshihiko Takeda | 2018-09-25 |
| 10043974 | Method for producing frame-equipped vapor deposition mask, stretching apparatus, apparatus for producing organic semiconductor device and method for producing organic semiconductor device | Katsunari Obata, Toshihiko Takeda, Hideyuki Okamoto | 2018-08-07 |