Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4942817 | Explosive cartridge and paper polyethylene laminated on both the sides used therefor | Yoshiyuki Ikeda | 1990-07-24 |
| 4386977 | Water-in-oil emulsion explosive | Yoshiyuki Ikeda, Atsuo Inoue, Yoshio Tanabe | 1983-06-07 |