Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4985545 | Water-soluble formazan colorant containing reactive group and method of dyeing by its use | Toshio Hihara, Kanzi Shimizu, Yukiharu Shimizu | 1991-01-15 |
| 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 |
| 4760133 | Process for preparing disazo dyes with bis-anilino methane coupling component | Toshio Niwa, Shuichi Maeda, Yukiharu Shimizu | 1988-07-26 |
| 4743684 | Reactive phthalocyanine dyes | Toshio Niwa, Toshio Hihara, Kanzi Shimizu | 1988-05-10 |
| 4734101 | Red benzothiazole monoazo dye for polyester fiber, mixed dye containing the same, and method of dyeing polyester fiber using the same | Junji Yoshihara, Masateru Ishida | 1988-03-29 |
| 4707546 | Reactive monoazo dyestuffs | Toshio Niwa, Toshio Hihara | 1987-11-17 |
| 4699982 | Perinone compound | Toshio Niwa, Junji Yoshihara | 1987-10-13 |
| 4642339 | Thiazoleazophenylaminoethyl carbonyloxy-C.sub.8 -C.sub.10 -alkyl compounds useful as dyes for polyester fibers | Toshio Niwa, Junji Yoshihara | 1987-02-10 |
| 4626590 | Reactive monoazo and disazo pyridone dyestuffs containing a halo-substituted 6-member nitrogen-containing heterocyclic ring | Toshio Niwa, Toshio Hihara, Yukiharu Shimizu | 1986-12-02 |
| 4623719 | Disazo dyestuffs having a monofluorotriazinyl group | Toshio Niwa, Toshio Hihara | 1986-11-18 |
| 4621136 | Phenyl azo cyanothienyl azo anilino dyestuffs | Seiichi Imahori, Shuichi Maeda | 1986-11-04 |
| 4564673 | 3-Cyano-5-nitrothiophene anilino monoazo dye for synthetic fibers | Toshio Niwa, Shuichi Maeda | 1986-01-14 |
| 4542207 | Heterocyclic monoazo dyes for polyester fibers | Toshio Niwa, Junji Yoshihara | 1985-09-17 |
| 4507476 | Anthraquinone dyestuffs for cellulose-containing fibers | Toshio Niwa, Toshio Hihara | 1985-03-26 |
| 4505715 | Monoazo dyestuff mixtures to dye polyester yellow | Toshio Niwa, Junji Yoshihara | 1985-03-19 |
| 4494957 | Dye compositions for polyester fibers | Toshio Niwa, Shuichi Maeda | 1985-01-22 |
| 4313731 | Mono-azo compound, mono-azo dye and dyeing process for polyester fibers | Seiichi Imahori | 1982-02-02 |