Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5154785 | Process for producing a zirconia refractory heating element | Katsuhiro Tabata, Hajime Asami, Hiroyuki Asakura, Kenji Mitsui | 1992-10-13 |
| 5073689 | Zirconia refractory heating element | Katsuhiro Tabata, Hajime Asami, Hiroyuki Asakura, Kenji Mitsui | 1991-12-17 |
| 4400334 | Apparatus for making hearth of kiln under vibration | Shigeru Okuda, Masashi Mori | 1983-08-23 |
| 4298391 | Hot repair gun refractory mix for a lining refractory | Hiroyuki Sugimoto, Mitsuteru Takemoto | 1981-11-03 |