Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5362598 | Quinone diazide photoresist composition containing alkali-soluble resin and an ultraviolet ray absorbing dye | Yasunori Uetani, Hirotoshi Nakanishi, Ryotaro Hanawa | 1994-11-08 |
| 5304456 | Negative photoresist composition | Yuji Ueda, Hiromi Ueki, Takehiro Kusumoto | 1994-04-19 |