Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7901497 | Water-soluble naphthalocyanine coloring matter and water-based ink containing the same | Takaaki Kurata, Takashi Yoneda, Takafumi Fujii, Tadayuki Kiyoyanagi | 2011-03-08 |
| 7901498 | Trisazo compound, ink composition, printing method and colored product | Takahiko Matsui, Takashi Yoshimoto, Shinsuke Shimizu | 2011-03-08 |