Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4356027 | Iron ore pellets containing magnesium oxide | Takeshi Sugiyama, Shoji Shirouchi, Mamoru Onoda, Isao Fujita | 1982-10-26 |
| 4257806 | Fired iron-ore pellets having macro pores and process for producing the same | Isao Fujita, Mamoru Onoda, Yoshimichi Takenaka, Tadao Tsutaya | 1981-03-24 |
| 4231797 | Fired iron-ore pellets having macro pores | Isao Fujita, Mamoru Onoda, Yoshimichi Takenake, Tadao Tsutaya | 1980-11-04 |