Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6089778 | Joint | Seiji Hirano | 2000-07-18 |
| D423918 | Joint for pipe structure | Seiji Hirano | 2000-05-02 |
| D418396 | Joint for pipe structure | Seiji Hirano | 2000-01-04 |
| D397212 | Joint for pipe structure | Seiji Hirano | 1998-08-18 |
| D397211 | Joint for pipe structure | Seiji Hirano | 1998-08-18 |
| D374607 | Shelf joint | — | 1996-10-15 |
| D374608 | Shelf joint | — | 1996-10-15 |
| D347377 | Joint support for shelves | Keiichi Nakamura | 1994-05-31 |