Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834771 | Aqueous liquid dye composition of C.I. reactive blue ZI and caprolactam or N-methyl pyrrolidone | Noriaki Yamauchi, Kunihiko Imada | 1989-05-30 |
| 4693725 | Aqueous liquid dye composition containing bifunctional reactive dye having both monohalogenotriazinyl and vinyl sulfonyl fiber reactive groups | Noriaki Yamauchi, Kunihiko Imada | 1987-09-15 |