Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5615730 | Methods for inspecting the content of structure modifying additives in molten cast iron and chilling tendency of flaky graphite cast iron | Hidetaka Hiraoka, Yasushi Kubota | 1997-04-01 |