Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843149 | Fiber reactive yellow dye of acetoacetonilide having vinyl sulfone-type reactive group | Yutaka Kayane, Takashi Omura, Naoki Harada, Akira Takeshita | 1989-06-27 |
| 4841048 | Dioxazine compound having vinylsulfone type fiber reactive group | Takashi Omura, Naoki Harada | 1989-06-20 |