Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6605130 | Pellets incorporated with carbonaceous material | Yoshimichi Takenaka, Masakata Shimizu, Kazuya Miyagawa | 2003-08-12 |
| 6334883 | Pellets incorporated with carbonaceous material and method of producing reduced iron | Yoshimichi Takenaka, Masakata Shimizu, Kazuya Miyagawa | 2002-01-01 |
| 6302938 | Reduced pellets | Tsunao Kamijo, Kazuya Miyagawa, Yoshimichi Takenaka, Masakata Shimizu, Haruhisa Iwakiri | 2001-10-16 |
| 6258149 | Method of producing reduced iron agglomerates | Takeshi Sugiyama, Hidetoshi Tanaka, Takao Harada, Sumito Hashimoto, Yoshimichi Takenaka | 2001-07-10 |
| 6152983 | Method of producing reduced iron pellets | Tsunao Kamijo, Kazuya Miyagawa, Yoshimichi Takenaka, Masakata Shimizu, Haruhisa Iwakiri | 2000-11-28 |
| 6129777 | Method of producing reduced iron agglomerates | Kojiro Fuji, Hidetoshi Tanaka, Takao Harada, Takeshi Sugiyama, Yoshimichi Takenaka +6 more | 2000-10-10 |
| 5498399 | Process for removing nitrogen oxides | Takeshi Sugiyama, Kouichi Morioka | 1996-03-12 |
| 5366950 | Catalyst and process for removing nitrogen oxides | Takeshi Sugiyama, Kouichi Morioka | 1994-11-22 |
| 5127940 | Self-fluxing pellets to be charged into blast furnace, and method for producing same | Takeshi Sugiyama, Kunihiko Tokutake, Mitutoshi Isobe | 1992-07-07 |
| 4372779 | Iron ore pellets containing coarse ore particles | Takeshi Sugiyama, Osamu Tsuchiya, Mamoru Onoda, Atsuko Yamashita, Isao Fujita +1 more | 1983-02-08 |
| 4367091 | Fired iron-ore pellets having at least two different precipitated slag phases and process for producing the same | Isao Fujita, Mamoru Onoda, Takeshi Sugiyama | 1983-01-04 |
| 4356027 | Iron ore pellets containing magnesium oxide | Takeshi Sugiyama, Mamoru Onoda, Fumikazu Kawaguchi, Isao Fujita | 1982-10-26 |