Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6547712 | Method for solidifying and sealing in a toxic substance with sulfur | Yoshikatsu Ikari, Chujiro Nishida, Katsuyoshi Toyofuku, Toshiyuki Kokubu | 2003-04-15 |
| 6083431 | Method for solidifying and sealing in a toxic substance with sulfur | Yoshikatsu Ikari, Chujiro Nishida, Katsuyoshi Toyofuku, Toshiyuki Kokubu | 2000-07-04 |