Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10967663 | Printing intaglio, printing intaglio manufacturing method, print-making method, and print | Kenichiro Nakamatsu, Hidekazu Hayashi | 2021-04-06 |
| 10947411 | Optical member and polymer layer | Yasuhiro Shibai, Ken Atsumo, Hidekazu Hayashi | 2021-03-16 |