Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8440016 | Sulfate resistant ground granulated blast furnace slag, sulfate resistant cement, and method of production of same | Tetsuharu Ibaraki | 2013-05-14 |
| 8419851 | Sulfate resistant cement | Tetsuharu Ibaraki | 2013-04-16 |
| 4909950 | Process and apparatus for separating solid-liquid compositions | Yoshihisa Katoh, Takashi Ogawa, Mitsumasa Hasegawa | 1990-03-20 |
| 4863617 | Process and apparatus for separating solid-liquid compositions | Yoshihisa Katoh, Takashi Ogawa, Mitsumasa Hasegawa | 1989-09-05 |