Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7722717 | Hydraulic composition | Daisuke Sawaki, Kenichi Homma, Kouki Ichitsubo, Kenichi Matsumoto, Makihiko Ichikawa | 2010-05-25 |
| 6358311 | Additives for cement materials and cement materials | Norihiko Arai, Makihiko Ichikawa | 2002-03-19 |
| 4559103 | Packaging paper and packaging material for packaging metallic material and method of producing the same | Yoshika Nomura, Sadahiro Shoji | 1985-12-17 |