Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654474 | Aromatic diisocyanate and method of producing the same | Michie Ishii | 1997-08-05 |
| 5645979 | Heat-resistant photoresist composition and negative-type pattern formation method | Michie Ishii, Masako Maeda, Kazumi Higashi | 1997-07-08 |
| 5595856 | Heat-resistant photoresist composition and negative-type pattern formation method | Michie Ishii, Masako Maeda, Kazumi Higashi | 1997-01-21 |