Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6485533 | Porous grinding stone and method of production thereof | Kozo Ishizaki, Atsushi Takata | 2002-11-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6485533 | Porous grinding stone and method of production thereof | Kozo Ishizaki, Atsushi Takata | 2002-11-26 |