Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842614 | Demineralization of aqueous liquid dye composition | Noriaki Yamauchi, Kunihiko Imada | 1989-06-27 |
| 4843149 | Fiber reactive yellow dye of acetoacetonilide having vinyl sulfone-type reactive group | Hirokazu Sawamoto, Takashi Omura, Naoki Harada, Akira Takeshita | 1989-06-27 |
| 4841027 | Process for preparing phenyl- and naphthylazo-aminonaphthol sulphonic acids | Takashi Omura, Yasuo Tezuka, Hideharu Sone | 1989-06-20 |
| 4841031 | Reactive dye having both monochlorotriazinyl and vinylsulfone type reactive groups | Katsumasa Otake, Yasuo Tezuka | 1989-06-20 |
| 4832698 | Aqueous liquid composition of vinylsulfone type reactive dyes in lithium salt form and buffer | Shinei Ikeou, Takemi Tokieda, Noriaki Yamauchi, Kunihiko Imada | 1989-05-23 |