Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11041231 | H-section steel and method of producing the same | Kazutoshi Ichikawa, Motomichi HARA, Shunsuke YAMAGISHI | 2021-06-22 |
| 10280476 | H-section steel and method of producing the same | Kazutoshi Ichikawa, Kazuaki Mitsuyasu, Hirokazu Sugiyama | 2019-05-07 |
| 10060002 | H-section steel and method of producing the same | Kazutoshi Ichikawa, Kazuaki Mitsuyasu, Hirokazu Sugiyama | 2018-08-28 |
| 9863022 | High-strength ultra-thick H-beam steel | Kazutoshi Ichikawa, Kazuaki Mitsuyasu, Hirokazu Sugiyama | 2018-01-09 |
| 9834931 | H-section steel and method of producing the same | Kazutoshi Ichikawa, Manabu Hoshino, Kazuaki Mitsuyasu, Hirokazu Sugiyama | 2017-12-05 |
| 9482005 | H-Section steel | Kazutoshi Ichikawa, Kazuaki Mitsuyasu, Hirokazu Sugiyama | 2016-11-01 |
| 8715432 | Fire-resistant steel superior in weld joint reheat embrittlement resistance and toughness and method of production of same | Yasushi Hasegawa, Yoshiyuki Watanabe, Suguru Yoshida, Tadayoshi Okada | 2014-05-06 |