Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7986735 | Digital signal transmission apparatus and method, digital signal receiving apparatus and method, and digital signal transmission system | Hideaki Murayama, Yoshihiro Morioka | 2011-07-26 |
| 7959745 | High-strength steel pipe of API X65 grade or higher | Toyohisa Shinmiya, Shigeru Endo, Minoru Suwa | 2011-06-14 |
| 7935197 | High strength steel plate | Toyohisa Shinmiya, Minoru Suwa, Shigeru Endo | 2011-05-03 |