Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880434 | Method of obtaining dyed and finished cellulose fiber materials using reactive metallized formazan dye with no color change | Naoki Harada, Tetsuya Miyamoto, Takashi Omura | 1989-11-14 |
| 4842614 | Demineralization of aqueous liquid dye composition | Noriaki Yamauchi, Yutaka Kayane | 1989-06-27 |
| 4834771 | Aqueous liquid dye composition of C.I. reactive blue ZI and caprolactam or N-methyl pyrrolidone | Noriaki Yamauchi, Shinnei Ikeou | 1989-05-30 |
| 4832698 | Aqueous liquid composition of vinylsulfone type reactive dyes in lithium salt form and buffer | Shinei Ikeou, Takemi Tokieda, Noriaki Yamauchi, Yutaka Kayane | 1989-05-23 |