Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5123957 | Method for manufacturing low carbon ferrochrome with high chromium content | Masanori Kato, Keiichi Nakagawa, Kiyoshi Kawasaki, Yutaka Yano | 1992-06-23 |
| 4381348 | Blue colored artificial stone stocks and method of manufacturing the same | Hirohisa Ishiguro, Kensei Itakura, Kazuo Yamagishi | 1983-04-26 |