Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5090176 | Method of positioning concrete slabs on girders | Hirofumi Takenaka | 1992-02-25 |
| 4710994 | Method of forming a composite structural member | Hirofumi Takenaka | 1987-12-08 |
| 4641816 | Apparatus for stretching, loosening, and fixing a wire member | Hirofumi Takenaka | 1987-02-10 |