Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5958128 | Method of manufacturing a disazo pigment and disazo pigment manufactured thereby | Yoshimi Kikuchi | 1999-09-28 |
| 5882394 | Aqueous pigment paste for offset ink, process for producing the paste, and use thereof | Hiroki Nishina, Seiji Aida | 1999-03-16 |
| 5489672 | Process for the production of dis-azo pigment whose amine content is small, and pigment produced by said process | Osamu Shiromaru | 1996-02-06 |
| 5243031 | Process for the production of monoazo lake pigment coated with water-insoluble rosin and improved in lipophilic nature and water resistance | Nobuyuki Tomiya, Yusuke Watabe | 1993-09-07 |
| 5144014 | Process for production of monoazo lake coated with water-insoluble metal salt of rosin | Nobuyuki Tomiya, Yusuke Watabe | 1992-09-01 |