Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5456898 | Method for enrichment and purification of aqueous hydrogen peroxide solution | Yoshitsugu Minamikawa, Seishi Murakami | 1995-10-10 |
| 5166039 | Peeling solution for photo- or electron beam-sensitive resin and process for peeling off said resin | Yoshio Maeda | 1992-11-24 |
| 5037724 | Peeling solution for photo- or electron beam-sensitive resin | Yoshio Maeda | 1991-08-06 |
| 4999179 | Method for purifying impure aqueous hydrogen peroxide solution | Yasuo Sugihara | 1991-03-12 |