Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9976197 | Method for producing journal part of 9 to 12% Cr steel turbine rotor, and journal part produced by the method | Yasushi Wakeshima | 2018-05-22 |
| 6755920 | Low-alloy heat-resistant steel, heat treatment method therefor, and turbine rotor comprising the same | Masatomo Kamada, Akitsugu Fujita, Yoshiyuki Ooba, Makoto Yamaguchi | 2004-06-29 |
| 5827379 | Process for producing extra high tensile steel having excellent stress corrosion cracking resistance | Ryota Yamaba, Tomoya Koseki, Ichiro Nakagawa | 1998-10-27 |
| 5447581 | Process for producing extra high tensile steel in 1080 MPa yield strength class having excellent stress corrosion cracking resistance | Ryota Yamaba | 1995-09-05 |
| 5061325 | Method of producing high tension steel superior in weldability and low-temperature toughness | Seinosuke Yano, Ryota Yamaba, Hidetaka Chiba | 1991-10-29 |
| 4946516 | Process for producing high toughness, high strength steel having excellent resistance to stress corrosion cracking | Seinosuke Yano, Hirohide Muraoka | 1990-08-07 |
| 4826543 | Process for producing high toughness, high strength steel having excellent resistance to stress corrosion cracking | Seinosuke Yano, Katsuo Kaku, Junichi Kobayashi | 1989-05-02 |