Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9945015 | High-tensile steel plate giving welding heat-affected zone with excellent low-temperature toughness, and process for producing same | Masao Yuga, Shigeki Kitsuya, Kenji Hayashi | 2018-04-17 |
| 9790579 | High tensile strength steel plate having excellent weld heat-affected zone low-temperature toughness and method for producing same | Masao Yuga, Shigeki Kitsuya, Yusuke Terazawa, Kenji Hayashi | 2017-10-17 |
| 8147626 | Method for manufacturing high strength steel plate | Nobuyuki Ishikawa, Toyohisa Shinmiya, Shigeru Endo | 2012-04-03 |
| 7959745 | High-strength steel pipe of API X65 grade or higher | Nobuyuki Ishikawa, Toyohisa Shinmiya, Shigeru Endo | 2011-06-14 |
| 7935197 | High strength steel plate | Nobuyuki Ishikawa, Toyohisa Shinmiya, Shigeru Endo | 2011-05-03 |
| 6666932 | High strength hot rolled steel sheet | Yoshimasa Funakawa, Tsuyoshi Shiozaki, Kunikazu Tomita, Takanobu Saito, Hiroshi Nakata +4 more | 2003-12-23 |