Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5558726 | Cold rolled steel having excellent machinability and production thereof | Hisayoshi YATOH, Yasuhiko Yamashita, Takashi Harabuchi | 1996-09-24 |
| 5509977 | High strength hot rolled steel plates and sheets excellent in uniform elongation after cold working and process for producing the same | Koh Moriyama, Takashi Harabuchi, Yoshikazu Nakano, Hiroshi Mochiki, Kimio Nagata | 1996-04-23 |
| 5061325 | Method of producing high tension steel superior in weldability and low-temperature toughness | Yoshihiro Okamura, Ryota Yamaba, Hidetaka Chiba | 1991-10-29 |
| 4946516 | Process for producing high toughness, high strength steel having excellent resistance to stress corrosion cracking | Yoshihiro Okamura, Hirohide Muraoka | 1990-08-07 |
| 4826543 | Process for producing high toughness, high strength steel having excellent resistance to stress corrosion cracking | Yoshihiro Okamura, Katsuo Kaku, Junichi Kobayashi | 1989-05-02 |
| 4814141 | High toughness, ultra-high strength steel having an excellent stress corrosion cracking resistance with a yield stress of not less than 110 kgf/mm.sup.2 | Yasuho Imai, Yoichiro Tobe, Ko Moriyama, Syuzo Ueda, Seimei Karino | 1989-03-21 |
| 4776900 | Process for producing nickel steels with high crack-arresting capability | Naoki Saito | 1988-10-11 |