Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4623638 | Silica gel linked to a phthalocyanine compound and a method for treating polycyclic organic substances therewith | Hikoya Hayatsu, Yoshikazu Matsuo | 1986-11-18 |
| 4460475 | Method for treatment of mutagens | Hikoya Hayatsu | 1984-07-17 |