Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11976340 | Refining vessel for high-temperature melt | Seiji Hosohara, Ryoma Fujiyoshi | 2024-05-07 |
| 11821691 | Gas injection nozzle refractory and gas injection nozzle | Seiji Hosohara, Atsuhisa Iida, Ryoma Fujiyoshi | 2023-11-21 |
| 6464932 | Unburned carbon-containing refractory material and vessel for molten metal | Osamu Nomura, Yasuhiro Hoshiyama | 2002-10-15 |
| 6136227 | Carbon-containing refractory and process for producing the same | Takashi Yamamura, Osamu Nomura, Hidenori Tada | 2000-10-24 |