Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475590 | Aminium salt or diimonium salt compounds and use thereof | Yasuyuki Kitayama, Masaaki Ikeda | 2002-11-05 |
| 5387264 | Method for dyeing or coloring organic macromolecular substance by using coumarin compound or coloring material | Yasuo Murakami, Ryuzo Orita, Tadaaki Sugimoto | 1995-02-07 |