Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9244354 | Method for producing thick film photoresist pattern | Yasushi Washio, Tomoyuki Ando, Eiichi Shimura | 2016-01-26 |
| 6730769 | Novolak resin, production process thereof and positive photoresist composition using the novolak resin | Akira Katano, Mitsuo Hagihara, Ken Miyagi | 2004-05-04 |
| 6680155 | Positive photoresist composition | Mitsuo Hagihara, Kenji Maruyama | 2004-01-20 |
| 6630279 | Positive photoresist composition | Mitsuo Hagihara, Kenji Maruyama | 2003-10-07 |