Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8536385 | Process for preparing dimethyl ether and process for preparing a mixture of dimethyl ether and methanol | Keiichi Okuyama, Takashi Ogawa, Seiji Aoki, Tsutomu Shikada, Yasuhiro Mogi +4 more | 2013-09-17 |
| 7033972 | Catalyst for producing dimethyl ether, method for producing catalyst and method for producing dimethyl ether | Tsutomu Shikada, Takashi Ogawa, Masatsugu Mizuguchi, Masami Ono, Kaoru Fujimoto | 2006-04-25 |
| 7015255 | Medium oil for slurry-bed reaction process and process of producing dimethyl ether | Keiji Tomura, Takashi Ogawa, Masami Ono, Keiichi Okuyama, Seiji Aoki +2 more | 2006-03-21 |
| 6800665 | Method for producing dimethyl ether | Tsutomu Shikada, Takashi Ogawa, Masatsugu Mizuguchi, Masami Ono, Kaoru Fujimoto | 2004-10-05 |
| 6361757 | Catalyst for manufacturing hydrogen or synthesis gas and manufacturing method of hydrogen or synthesis gas | Tsutomu Shikada, Norio Inoue, Masatsugu Mizuguchi, Keiji Tomura, Takeshi Furukawa +5 more | 2002-03-26 |
| 6147125 | Method and apparatus for producing dimethyl ether | Tsutomu Shikada, Takashi Ogawa, Masatsugu Mizuguchi, Masami Ono, Kaoru Fujimoto | 2000-11-14 |
| 6093297 | Method for depositing solid electrolyte layer | Keiji Tomura, Tohru Shiomitsu, Takashi Ogawa, Yasuhiko Manabe | 2000-07-25 |
| 5749720 | Gas heating apparatus with dual burners | Seiji Fukuda, Sunao Nakamura | 1998-05-12 |
| 5066327 | Method for manufacturing cold bonded pellets | Hideomi Yanaka | 1991-11-19 |
| 4985075 | Method for manufacturing chromium-bearing pig iron | Masahiro Matsuura, Kenkichi Sato, Hiroshi Fukuyo | 1991-01-15 |