Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5221342 | Coloring composition and production method and use thereof | Takashi Minami, Masayuki Naganuma, Yoshiaki Yagita, Eiko Kinoshita | 1993-06-22 |
| 5165915 | Spherical clay mineral powder, process for production thereof and composition containing the same | Kazuo Tokubo, Michihiro Yamaguchi, Jyunko Suzuki, Toshio Yoshioka, Fujihiro Kanda +3 more | 1992-11-24 |