Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9169403 | Powder coating composition for PC strand coating, coating method, and coating film | Tomoyuki Hirai, Yoshitaka Ishihara, Koichiro Natori, Yoshihiko Touda, Takayuki Yamagiwa | 2015-10-27 |
| 7886490 | Strand | Tomoya Maekawa, Yoshihiko Touda, Katsuhito Oshima | 2011-02-15 |
| 7861507 | High-strength prestressing strand, method for manufacturing the same, and concrete construction using the same | Tomoya Maekawa, Takashi Ichiki | 2011-01-04 |