Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691481 | Method and apparatus for obtaining data on the strain-stress relation of test pieces of green sand molds | — | 1997-11-25 |
| 5682941 | Device for producing molds | Shigeo Oda, Ryoji Kanayama | 1997-11-04 |
| 5675090 | Method for measuring the amount of an active clayey component contained in molding greensand | Kazuharu Matsui | 1997-10-07 |