Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6136970 | Asymmetric dioxazine compounds and method for dyeing or printing fiber materials using the same | Takahiko Fujisaki, Miyao Takahashi, Shigeru Kawabata, Naoki Harada, Kingo Akahori +2 more | 2000-10-24 |
| 5760196 | Monoazo blue disperse dye compounds and methods for dyeing or printing hydrophobic fiber materials using the same | Yoshimasa Amatatsu, Yousuke Yamamoto, Nobuyuki Katsuda | 1998-06-02 |
| 5478936 | Asymmetric dioxazine compounds and method for dyeing or printing fiber materials using the same | Miyao Takahashi, Takahiko Fuzisaki, Yutaka Kayane, Shigeru Kawabata, Naoki Harada | 1995-12-26 |
| 5116956 | Polyazo dye compounds having vinylsulfone type and pyridinium type fiber reactive groups | Tetsuya Miyamoto, Yutaka Kayane, Takashi Omura, Takeshi Washimi, Naoki Harada +1 more | 1992-05-26 |
| 5112959 | Polyazo dye compounds having plural vinylsulfone type fiber reactive groups in one molecule | Tetsuya Miyamoto, Yutaka Kayane, Takashi Omura, Takeshi Washimi, Naoki Harada +1 more | 1992-05-12 |
| 4910298 | Monoazo compound having triazinyl bridging group and two vinylsulfone type fiber reactive groups imparting yellowish color | Sadanobu Kikkawa, Naoki Harada, Takashi Omura | 1990-03-20 |
| 4904766 | Monoazo compound having two vinylsulfone type fiber reactive groups through triazinyl bridging group | Toshihiko Morimitsu, Naoki Harada, Takashi Omura, Sadanobu Kikkawa | 1990-02-27 |
| 4880431 | Aryl monoazo pyridone yellow compound having two vinylsulfone type fiber reactive groups bonded to a triazine ring for dyeing cellulose or polyamide | Naoki Harada, Takashi Omura | 1989-11-14 |
| 4824942 | Fiber-reactive monoazo compound and aqueous compositions thereof imparting and color | Noriaki Yamauchi, Takashi Omura | 1989-04-25 |
| 4812558 | Triazine compound having two vinylsulfone type fiber reactive groups | Takashi Omura | 1989-03-14 |