Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5962740 | Processes for producing 4,6-bis (substituted)phenylazoresorcinols | Kazuhiko Akimoto, Kenichi Tokunaga, Isao Hashiba, Hideo Suzuki, Yasuo Katsumura +2 more | 1999-10-05 |
| 5536819 | Trisazo compounds imparting deep black color a method for dyeing by using them and an ink containing them | Yuriko Tamura, Kazuya Ogino, Mahito Fujita, Takashi Omura, Koji Aburada | 1996-07-16 |
| 5530105 | Tetraskisazo compound and ink containing the compound | Satoshi Yamazaki, Koji Aburada, Kazuya Ogino, Yuriko Tamura, Takashi Omura | 1996-06-25 |
| 5489671 | Trisazo compound imparting black color, method for dyeing by using it and ink containing it | Kazuya Ogino, Yuriko Tamura, Takashi Omura, Mahito Fujita, Koji Aburada | 1996-02-06 |
| 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, Yutaka Kayane, Mituhiro Ohta | 1996-01-30 |
| 5183501 | Ink compositions for ink jet recording | Mituhiro Ohta, Kazuya Ogino | 1993-02-02 |
| 5149366 | Disazo compound and ink composition containing the same | Mituhiro Ohta, Kazuya Ogino | 1992-09-22 |
| 4771129 | Monoazo dyestuffs containing substituted amino triazine | Mitsuhiro Ota | 1988-09-13 |
| 4734489 | Trisazo compounds useful in producing water-resistant ink compositions | Shinjiro Kawasaki, Hideo Kitagawa, Yutaka Nishii, Minoru Akagi | 1988-03-29 |
| 4732615 | Copper phthalocyanine compound and aqueous ink composition comprising the same | Mitsuhiro Ota | 1988-03-22 |
| 4605442 | Aqueous ink composition | Takuo Ikeda, Sanae Sakaguchi | 1986-08-12 |