Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11208726 | Microetching agent for copper, copper surface roughening method and wiring board production method | Yuki Ogino, Takahiro Sakamoto | 2021-12-28 |
| 7285229 | Etchant and replenishment solution therefor, and etching method and method for producing wiring board using the same | Masayo Kuriyama, Ryo Ogushi, Daisaku Akiyama | 2007-10-23 |