Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6656579 | Concrete products for promotion of afforestation | Norihiko Hirano, Shigeru Furukawa | 2003-12-02 |
| 6625755 | Storage apparatus and control method thereof | Keiichiro Hirata | 2003-09-23 |