Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11834731 | Method of producing ferritic heat-resistant steel welded joint | Hiroyuki Hirata, Kana JOTOKU, Shinnosuke Kurihara | 2023-12-05 |
| 11339461 | Austenitic stainless steel | Hiroyuki Hirata, Kana JOTOKU | 2022-05-24 |
| 11339462 | Austenitic stainless steel weld metal and welded structure | Hiroyuki Hirata, Kana JOTOKU | 2022-05-24 |
| 11090755 | Welding material for ferritic heat-resistant steel, welded joint for ferritic heat-resistant steel, and method for producing welded joint for ferritic heat-resistant steel | Hiroyuki Hirata, Kana JOTOKU, Tomoaki Hamaguchi, Toshihide Ono | 2021-08-17 |
| 11021778 | Austenitic stainless steel weld metal and welded structure | Hiroyuki Hirata, Kana JOTOKU | 2021-06-01 |
| 10519533 | High Cr-based austenitic stainless steel | Atsuro Iseda, Hiroyuki Semba, Hirokazu Okada, Hiroyuki Hirata, Toshihide Ono +2 more | 2019-12-31 |
| 8852362 | Austenitic stainless steel pipe excellent in steam oxidation resistance and manufacturing method therefor | Yoshitaka Nishiyama, Mitsuru Yoshizawa, Masahiro Seto | 2014-10-07 |