Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4770832 | Process for manufacturing of structural reinforcing material | Tadashi Okamoto, Sumiyuki Matsubara, Koichi Hasuo | 1988-09-13 |
| 4684567 | Reinforced structural material and reinforced fibrous inorganic structure reinforced therewith | Tadashi Okamoto, Sumiyuki Matsubara | 1987-08-04 |