Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6183896 | Solid oxide fuel cell and a carbon direct-oxidizing-type electrode for the fuel cell | Teruhisa Horita, Natsuko Sakai, Tatsuya Kawada, Harumi Yokokawa | 2001-02-06 |
| 4681626 | Method of refining aluminum | Masao Fujishige, Harumi Yokokawa, Seiichi Ujiie | 1987-07-21 |
| 4588438 | Moulded object of alumina matter-containing raw material for aluminum smelting by blast furnace method | Masao Fujishige, Tetsuya Kameyama, Harumi Yokokawa, Seiichi Ujiie, Kenzo Fukuda | 1986-05-13 |
| 4445934 | Method of manufacturing aluminum by using blast furnace | Masao Fujishige, Tetsuya Kameyama, Harumi Yokokawa, Seiichi Ujiie, Kenzo Fukuda +1 more | 1984-05-01 |
| 4225733 | Method for hydrogenating an aromatic compound | Tetsuya Kameyama, Kenzo Fukuda | 1980-09-30 |