Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841036 | Phenyl acothienylthiazoaniline dis-azo dye for polyester fibers | Seiichi Imahori, Junji Yoshihara | 1989-06-20 |
| 4837309 | Monohalo substituted triazinyl monoazo dyestuffs for cellulose-containing fibers | Toshio Niwa, Toshio Hihara, Yutaka Kurose, Yukiharu Shimizu | 1989-06-06 |
| 4801696 | Phenylazocyanothiopheneazoaniline dyes for dyeing cellulose-containing fibers in blue to bluish green shades | Toshio Niwa, Toshio Hihara, Shuichi Maeda | 1989-01-31 |