Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11401591 | Method for selecting rail steel and wheel steel | Minoru Honjo, Tatsumi Kimura, Kazukuni Hase | 2022-08-02 |
| 11332799 | Case hardening steel, method of producing the same, and method of producing gear parts | Keisuke Ando, Takashi Iwamoto, Kimihiro Nishimura | 2022-05-17 |
| 11326238 | Steel material for high heat input welding | Yuki Toji, Akio Ohmori, Koichi Nakashima, Ryo Arao, Kazukuni Hase | 2022-05-10 |
| 11299798 | Steel plate and method of producing same | Yoshiko Takeuchi, Kazukuni Hase | 2022-04-12 |
| 11111555 | Method for producing rail | Minoru Honjo, Tatsumi Kimura, Kazukuni Hase | 2021-09-07 |
| 10450627 | Thick steel plate having good multipass weld joint CTOD characteristics and method for manufacturing the same | Yusuke Terazawa, Kazukuni Hase | 2019-10-22 |
| 10443110 | High toughness and high tensile strength thick steel plate and production method therefor | Shigeki Kitsuya, Kazukuni Hase, Teruhisa Kinugawa, Naoki Matsunaga, Kenji Hayashi +3 more | 2019-10-15 |
| 10358688 | Steel plate and method of producing same | Shigeki Kitsuya, Kazukuni Hase, Shigeru Endo | 2019-07-23 |
| 10351926 | High toughness and high tensile strength thick steel plate with excellent material homogeneity and production method for same | Yota Kuronuma, Hirofumi Ohtsubo, Shigeki Kitsuya, Kazukuni Hase | 2019-07-16 |
| 10316385 | High-tensile-strength steel plate and process for producing same | Masao Yuga, Kazukuni Hase, Shigeru Endo | 2019-06-11 |
| 10300564 | Weld joint | Masao Yuga, Kazukuni Hase, Shigeru Endo | 2019-05-28 |
| 10041159 | Thick steel plate and production method for thick steel plate | Yusuke Terazawa, Kenji Hayashi | 2018-08-07 |
| 10036079 | Thick steel sheet having excellent CTOD properties in multilayer welded joints, and manufacturing method for thick steel sheet | Yusuke Terazawa, Kazukuni Hase, Shigeru Endo | 2018-07-31 |
| 10023946 | Thick steel sheet having excellent CTOD properties in multilayer welded joints, and manufacturing method for thick steel sheet | Yusuke Terazawa, Kazukuni Hase, Shigeru Endo | 2018-07-17 |
| 10000833 | Thick, tough, high tensile strength steel plate and production method therefor | Shigeki Kitsuya, Naoki Matsunaga, Kazukuni Hase, Shigeru Endo | 2018-06-19 |
| 9777358 | Thick-walled, high tensile strength steel with excellent CTOD characteristics of the weld heat-affected zone, and manufacturing method thereof | Masao Yuga, Kenji Hayashi | 2017-10-03 |