Issued Patents All Time
Showing 1–25 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6277966 | Azo-compounds and dye polarizing films containing them | Akihiro Taguma, Narutoshi Hayashi | 2001-08-21 |
| 6136970 | Asymmetric dioxazine compounds and method for dyeing or printing fiber materials using the same | Kazufumi Yokogawa, Takahiko Fujisaki, Miyao Takahashi, Shigeru Kawabata, Naoki Harada +2 more | 2000-10-24 |
| 5606092 | Monoazo compounds and method for dyeing or printing fiber materials using the same | Masayuki Miki, Kingo Akahori, Takeshi Washimi | 1997-02-25 |
| 5488101 | Trisazo compounds, method for dyeing fiber materials, paper or leather using the same and inks containing the same | Kazuya Ogino, Kingo Akahori, Naoki Harada, Hideo Kawashita, Mituhiro Ohta | 1996-01-30 |
| 5488098 | Monoazo compounds having vinylsulfone type fiber reactive group and method for dyeing or printing fiber materials using the same | Masayuki Miki, Kingo Akahori, Takeshi Washimi | 1996-01-30 |
| 5486607 | Dioxazine blue dye compound having vinylsulfone type fiber reactive groups | Tetsuya Miyamoto, Miyao Takahashi, Takahiko Fujisaki, Naoki Harada, Takashi Omura | 1996-01-23 |
| 5478936 | Asymmetric dioxazine compounds and method for dyeing or printing fiber materials using the same | Kazufumi Yokogawa, Miyao Takahashi, Takahiko Fuzisaki, Shigeru Kawabata, Naoki Harada | 1995-12-26 |
| 5359040 | Monoazo compounds having naphthylazonaphtylamino group and use therefor for dyeing or printing fiber materials | Kingo Akahori, Masayuki Miki, Takeshi Washimi | 1994-10-25 |
| 5308362 | Fiber reactive yellow dye composition | Naoki Harada, Kingo Akahori | 1994-05-03 |
| 5286881 | Process for producing benzodifuranone compounds useful for dyeing or printing hydrophobic fiber materials | Junichi Sekihachi, Jun Yamamoto | 1994-02-15 |
| 5266696 | 1-aminoanthraquinone dye compound having fiber reactive group through sulfur or oxygen atom at 4-position and imparting red color | Kingo Akahori, Naoki Harada, Takashi Omura | 1993-11-30 |
| 5259850 | Granular type reactive dye compositions and methods for dyeing and printing cellulose fibers using the same | Naoki Harada, Noriaki Yamauchi, Syuhei Hashizume, Kazumi Yoshigoe, Isao Nakamae | 1993-11-09 |
| 5235046 | Triazine compounds and method for dyeing or printing fiber materials using the same | Kingo Akahori, Masayuki Miki, Takeshi Washimi | 1993-08-10 |
| 5223616 | Heterocyclic disperse dye compound, their production and their use for dyeing or printing of hydrophobic fibers | Jun Yamamoto, Junichi Sekihachi, Yosuke Yamamoto, Kazuhiro Machiguchi | 1993-06-29 |
| 5131917 | Fiber reactive red dye composition | Tetsuya Miyamoto, Sadanobu Kikkawa, Kingo Akahori | 1992-07-21 |
| 5116956 | Polyazo dye compounds having vinylsulfone type and pyridinium type fiber reactive groups | Tetsuya Miyamoto, Kazufumi Yokogawa, Takashi Omura, Takeshi Washimi, Naoki Harada +1 more | 1992-05-26 |
| 5112971 | Anthraquinone dye compounds having fibers reactive group | Kingo Akahori, Naoki Harada, Takashi Omura | 1992-05-12 |
| 5112959 | Polyazo dye compounds having plural vinylsulfone type fiber reactive groups in one molecule | Tetsuya Miyamoto, Kazufumi Yokogawa, Takashi Omura, Takeshi Washimi, Naoki Harada +1 more | 1992-05-12 |
| 5037965 | Monoazo red dye compound having vinylsulfone type fiber reactive groups | Toshihiko Morimitsu, Kingo Akahori, Naoki Harada, Takashi Omura | 1991-08-06 |
| 4977261 | Anthraquinone compound | Takashi Omura, Naoki Harada, Yasuji Mori, Yosuke Yamamoto, Tetsuya Miyamoto +1 more | 1990-12-11 |
| 4975094 | Anthrapyridone compounds having vinylsulfone type fiber reactive group through triazinyl bridging group | Masayuki Miki, Kingo Akahori, Naoki Harada, Takashi Omura | 1990-12-04 |
| 4937326 | Reactive scarlet dyes having both monochlorotriazinyl and vinylsulfone type reactive groups linked via N-alkylated amino | Masaki Sunami, Katsumasa Otake, Yasuo Tezuka | 1990-06-26 |
| 4934009 | Stabilized aqueous liquid composition of fiber-reactive azo dye: mixture with vinyl-sulphonyl and beta-sulphato ethyl-sulphonyl substituents for low temperature stability | Noriaki Yamauchi | 1990-06-19 |
| 4843149 | Fiber reactive yellow dye of acetoacetonilide having vinyl sulfone-type reactive group | Hirokazu Sawamoto, Takashi Omura, Naoki Harada, Akira Takeshita | 1989-06-27 |
| 4842614 | Demineralization of aqueous liquid dye composition | Noriaki Yamauchi, Kunihiko Imada | 1989-06-27 |