Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12037666 | Steel material for line pipes, method for producing the same, and method for producing line pipe | Kyono Yasuda, Tomoyuki Yokota, Akihiko Tanizawa, Ryuji Muraoka | 2024-07-16 |
| 11401591 | Method for selecting rail steel and wheel steel | Minoru Honjo, Tatsumi Kimura, Katsuyuki Ichimiya | 2022-08-02 |
| 11401568 | Steel material for line pipes, method for producing the same, and method for producing line pipe | Kyono Yasuda, Tomoyuki Yokota, Akihiko Tanizawa, Ryuji Muraoka | 2022-08-02 |
| 11326238 | Steel material for high heat input welding | Yuki Toji, Akio Ohmori, Koichi Nakashima, Ryo Arao, Katsuyuki Ichimiya | 2022-05-10 |
| 11299798 | Steel plate and method of producing same | Yoshiko Takeuchi, Katsuyuki Ichimiya | 2022-04-12 |
| 11236405 | Steel plate for high-strength and high-toughness steel pipes and method for producing steel plate | Hideyuki Kimura, Ryo Nagao, Nobuyuki Ishikawa | 2022-02-01 |
| 11174543 | Case hardening steel, method of producing case hardening steel, and method of producing gear part | Keisuke Ando, Takashi Iwamoto, Kunikazu Tomita, Kimihiro Nishimura | 2021-11-16 |
| 11118240 | Abrasion-resistant steel plate and method of producing abrasion-resistant steel plate | Yusuke Terazawa, Naoki Takayama, Kenji Hayashi | 2021-09-14 |
| 11111555 | Method for producing rail | Minoru Honjo, Tatsumi Kimura, Katsuyuki Ichimiya | 2021-09-07 |
| 11111556 | Abrasion-resistant steel plate and method of producing abrasion-resistant steel plate | Yusuke Terazawa, Naoki Takayama, Kenji Hayashi | 2021-09-07 |
| 11060172 | Abrasion-resistant steel plate and method of manufacturing same | Naoki Takayama, Yusuke Terazawa, Yoshiaki Murakami, Yusaku TAKEMURA, Yasuhiro Murota | 2021-07-13 |
| 11035018 | Abrasion-resistant steel plate and method of producing abrasion-resistant steel plate | Yusuke Terazawa, Naoki Takayama, Kenji Hayashi | 2021-06-15 |
| 11035017 | Abrasion-resistant steel plate and method of producing abrasion-resistant steel plate | Yusuke Terazawa, Naoki Takayama, Kenji Hayashi | 2021-06-15 |
| 10774534 | Deformed reinforcing bar | Kiyoshi Uwai, Takashi Iwamoto | 2020-09-15 |
| 10450627 | Thick steel plate having good multipass weld joint CTOD characteristics and method for manufacturing the same | Katsuyuki Ichimiya, Yusuke Terazawa | 2019-10-22 |
| 10443110 | High toughness and high tensile strength thick steel plate and production method therefor | Shigeki Kitsuya, Katsuyuki Ichimiya, Teruhisa Kinugawa, Naoki Matsunaga, Kenji Hayashi +3 more | 2019-10-15 |
| 10358688 | Steel plate and method of producing same | Shigeki Kitsuya, Katsuyuki Ichimiya, 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, Katsuyuki Ichimiya | 2019-07-16 |
| 10316385 | High-tensile-strength steel plate and process for producing same | Katsuyuki Ichimiya, Masao Yuga, Shigeru Endo | 2019-06-11 |
| 10300564 | Weld joint | Katsuyuki Ichimiya, Masao Yuga, Shigeru Endo | 2019-05-28 |
| 10036079 | Thick steel sheet having excellent CTOD properties in multilayer welded joints, and manufacturing method for thick steel sheet | Yusuke Terazawa, Katsuyuki Ichimiya, 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, Katsuyuki Ichimiya, Shigeru Endo | 2018-07-17 |
| 10000833 | Thick, tough, high tensile strength steel plate and production method therefor | Shigeki Kitsuya, Naoki Matsunaga, Katsuyuki Ichimiya, Shigeru Endo | 2018-06-19 |
| 9618070 | Spring steel and method for manufacturing the same | Minoru Honjo, Hideto Kimura | 2017-04-11 |
| 9139887 | Bearing steel and ingot material for bearing having excellent rolling contact fatigue life characteristics and method for manufacturing the same | Minoru Honjo, Tatsumi Kimura, Shinji Mitao | 2015-09-22 |