Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7766985 | Coal drying method and equipment, method for aging reformed coal and aged reformed coal, and process and system for producing reformed coal | Masaki Iijima | 2010-08-03 |
| 7744662 | Coal drying method and equipment, method for aging reformed coal and aged reformed coal, and process and system for producing reformed coal | Masaki Iijima | 2010-06-29 |
| 7524341 | Coal drying method and equipment, method for aging reformed coal and aged reformed coal, and process and system for producing reformed coal | Masaki Iijima | 2009-04-28 |
| 6068671 | Coal drying method and equipment, method for aging reformed coal and aged reformed coal, and process and system for producing reformed coal | Masaki Iijima | 2000-05-30 |
| 4769042 | Process for heat treatment of coal | Yoshifumi Ito, Mamoru Tamai, Fumiaki Sato, Michio Teramoto | 1988-09-06 |
| 4669976 | Calcining apparatus for powdery materials | Hirofumi Hatano, Masayasu Yamazaki, Atsushi Sasaki, Keigo Mikami, Mitsuharu Murakami | 1987-06-02 |
| 4548580 | Calcining apparatus for powdery materials | Hirofumi Hatano, Masayasu Yamazaki, Atsushi Sasaki, Keigo Mikami, Mitsuharu Murakami | 1985-10-22 |
| 4308668 | Process for heat treatment of coal | Yoshifumi Ito, Yoshihiko Nishimoto, Fumiaki Sato, Takashi Ueda, Seibi Uehara | 1982-01-05 |