Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7987892 | Spherical casting sand | Masayuki Kato | 2011-08-02 |
| 7951454 | Resin-coated sand | — | 2011-05-31 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7987892 | Spherical casting sand | Masayuki Kato | 2011-08-02 |
| 7951454 | Resin-coated sand | — | 2011-05-31 |