Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6656579 | Concrete products for promotion of afforestation | Akira Kojima, Norihiko Hirano | 2003-12-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6656579 | Concrete products for promotion of afforestation | Akira Kojima, Norihiko Hirano | 2003-12-02 |