Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7255733 | Process for the production of β type copper phthalocyanine pigment and a use thereof | Yusaku Ide, Toshio Oshiba, Takuya Kotani | 2007-08-14 |
| 7211664 | Process for the production of epsilon crystal form copper phthalocyanine | — | 2007-05-01 |
| 7067652 | Copper phthalocyanine/iodine intermolecular compound and process for the production thereof | — | 2006-06-27 |
| 6989055 | Monoazo lake pigment composition and gravure ink using the same | Kenji Kitamura, Shigeki Kato, Hitoshi Maki, Shoko Goto, Motoi Shitaka | 2006-01-24 |
| 6860934 | Process for the production of β type copper phthalocyanine pigment | Yuusaku Ide, Toshio Oshiba, Takuya Kotani | 2005-03-01 |
| 6692559 | Pigment yellow 74 and printing ink composition | Takayoshi Ishigami, Toshio Oshiba, Yoshinori Kawashima | 2004-02-17 |
| 5489672 | Process for the production of dis-azo pigment whose amine content is small, and pigment produced by said process | Hitoshi Sugamo | 1996-02-06 |