Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4231857 | Process for preparing petroleum-derived binder pitch | Osamu Kato, Seiichi Uemura, Takao Hirose, Hiroaki Takashima | 1980-11-04 |
| 4229221 | Method for producing refractories | Seiichi Uemura, Takao Hirose, Hiroaki Takashima, Osamu Kato, Minoru Nagai | 1980-10-21 |
| 4220474 | Amorphous refractory compositions | Seiichi Uemura, Takao Hirose, Hiroaki Takashima, Osamu Kato, Minoru Nagai | 1980-09-02 |