Issued Patents All Time
Showing 1–25 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE46018 | Disperse azo dye mixtures | Manfred Hoppe, Ryouichi Sekioka | 2016-05-31 |
| 8506652 | Disperse dyes | Pankaj Desai, Nikhil Desai, Jay Patel | 2013-08-13 |
| 8409300 | Disperse azo dyes | Pankaj Desai, Nikhil Desai | 2013-04-02 |
| 7101408 | Disperse dye mixtures | Shinsuke Ohno | 2006-09-05 |
| 7060807 | AOX-free navy and black disperse dyes | — | 2006-06-13 |
| RE37004 | Water-soluble monoazodye containing a triazinyl or pyrimidinyl group and at least one vinyl sulfonyl type group in its structure | Yousuke Takahashi, Yukihara Shimizu, Toshio Hihara | 2000-12-26 |
| 6121352 | Disperse azo dye mixtures | Manfred Hoppe, Ryouichi Sekioka | 2000-09-19 |
| 5744588 | Blue type disperse dye mixture and process for its preparation | Toshio Hihara, Yousuke Takahashi | 1998-04-28 |
| 5734028 | Blue type disperse dye mixture | Toshio Hihara, Ryouchi Sekioka | 1998-03-31 |
| 5608042 | Benzothiazolemonoazo dyes | Toshio Hihara, Ryouichi Sekioka | 1997-03-04 |
| 5595575 | Blue disperse dye mixture | Toshio Hihara, Ryouichi Sekioka | 1997-01-21 |
| 5569309 | Disperse dye compositions | Toshio Hihara | 1996-10-29 |
| 5532344 | Process for producing a monoazodye by diazo-coupling of a p-nitroanaline derivative with a N,N-substituted analine derivative | Toshio Hihara, Yoshiharu Hamano, Shinji Kubo | 1996-07-02 |
| 5527888 | Thiophene-type monoazo dyes | Toshio Hihara, Ryouichi Sekioka | 1996-06-18 |
| 5505742 | Method for dyeing hydrophobic fibers black and dye useful for the method | Kazuhisa Konishi, Ryouichi Sekioka | 1996-04-09 |
| 5494492 | Disperse dye composition and method for dyeing hydrophobic fibers with it | Kazuhisa Konishi, Ryouichi Sekioka | 1996-02-27 |
| 5494493 | Disperse dye mixture | Toshio Hihara | 1996-02-27 |
| 5440024 | 3-cyano-5-nitrothiophene type monoazo dyes and mixtures thereof | Toshio Hihara, Wataru Shimizu | 1995-08-08 |
| 5380827 | Water-soluble monoazodye containing a triazinyl or pyrimidinyl group and at least one vinyl sulfonyl type group in its structure | Yousuke Takahashi, Yukiharu Shimizu, Toshio Hihara | 1995-01-10 |
| 5368612 | Method of dyeing a fiber mixture with water-insoluble naphthalic acid imide dyestuffs | Toshio Hihara | 1994-11-29 |
| 5340930 | Monoazo dye having a thiophene derivative as diazo component | Ryouichi Sekioka | 1994-08-23 |
| 5332404 | Disperse dye mixtures | Toshio Hihara, Hirotsugu Tsumura, Yoshiharu Hamano | 1994-07-26 |
| 5290931 | Water-insoluble naphthalic acid imide dyestuffs | Toshio Hihara | 1994-03-01 |
| 5278294 | Monoazo dye having diaminopyridine derivatives | Ryouichi Sekioka | 1994-01-11 |
| 5019133 | Method for dyeing polyester-containing fibers in an alkaline dyeing bath and dyeing assistant, an amino-acid compound | Kazuhisa Konishi | 1991-05-28 |