Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7550127 | Method for reducing exhaust carbon dioxide | Tatsuhito Takahashi, Tsuneo Isoo, Makoto Kato | 2009-06-23 |
| 6843843 | Underwater immersion block and method to produce the same | Tatsuhito Takahashi, Tsuneo Isoo, Makoto Kato | 2005-01-18 |
| 5523150 | Metal-impregnated refractory product | Noriji Numata, Makoto Iiyama, Noboru Murakami, Motonobu Kobayashi | 1996-06-04 |
| 5074530 | Apparatus for smelting reduction of iron ore | Katsuhiro Iwasaki, Kenji Takahashi, Shigeru Inoue, Masahiro Kawakami, Osamu Terada | 1991-12-24 |
| 5065985 | Method for smelting reduction of iron ore and apparatus therefor | Kenji Takahashi, Katsuhiro Iwasaki, Shigeru Inoue, Masahiro Kawakami, Kenzo Yamada +1 more | 1991-11-19 |
| 5047081 | Method of decarburizing high chromium molten metal | Masahiro Kawakami, Kenji Takahashi, Katsuhiro Iwasaki, Shigeru Inoue | 1991-09-10 |
| 5047082 | Method for smelting reduction of Ni ore | Katsuhiro Iwasaki, Masahiro Kawakami, Chihiro Taki, Toshio Takaoka | 1991-09-10 |
| 5039480 | Method for manufacturing molten metal containing Ni and Cr | Chihiro Taki, Katsuhiro Iwasaki, Masahiro Kawakami, Toshio Takaoka | 1991-08-13 |
| 5017220 | Method for smelting reduction of Ni ore | Katsuhiro Iwasaki, Masahiro Kawakami, Chihiro Taki, Toshio Takaoka | 1991-05-21 |
| 5000784 | Method for smelting reduction of iron ore | Kenji Takahashi, Katsuhiro Iwasaki, Shigeru Inoue, Masahiro Kawakami, Kenzo Yamada +1 more | 1991-03-19 |
| 4995906 | Method for smelting reduction of iron ore | Katsuhiro Iwasaki, Kenji Takahashi, Shigeru Inoue, Masahiro Kawakami, Osamu Terada | 1991-02-26 |
| 4988079 | Apparatus for smelting and reducing iron ores | Kenji Takahashi, Katsuhiro Iwasaki, Shigeru Inoue, Masahiro Kawakami, Kenzo Yamada +1 more | 1991-01-29 |
| 4961784 | Method of smelting reduction of chromium raw materials and a smelting reduction furnace thereof | Masahiro Kawakami, Kenji Takahashi, Katsuhiro Iwasaki, Shigeru Inoue | 1990-10-09 |
| 4944799 | Method of producing stainless molten steel by smelting reduction | Masahiro Kawakami, Kenji Takahashi, Katsuhiro Iwasaki, Shigeru Inoue | 1990-07-31 |
| 4936908 | Method for smelting and reducing iron ores | Kenji Takahashi, Katsuhiro Iwasaki, Shigeru Inoue, Masahiro Kawakami, Kenzo Yamada +1 more | 1990-06-26 |
| 4935054 | Method of charging chromium ores in a smelting reduction | Masahiro Kawakami, Kenji Takahashi, Katsuhiro Iwasaki, Shigeru Inoue, Hitoshi Kawata | 1990-06-19 |