Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6417317 | Novolak resin precursor, novolak resin and positive photoresist composition containing the novolak resin | Ken Miyagi, Kousuke Doi, Hidekatsu Kohara, Toshimasa Nakayama | 2002-07-09 |
| 6207788 | Novolak resin precursor, novolak resin and positive photoresist composition containing the novolak resin | Ken Miyagi, Kousuke Doi, Hidekatsu Kohara, Toshimasa Nakayama | 2001-03-27 |