Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12195868 | Surface-treated steel sheet and method of producing the same | Takashi Ueno, Yoichiro Yamanaka, Yoshitsugu Suzuki, Masanari TOMOZAWA, Takashi Kawano | 2025-01-14 |
| 12195858 | Surface-treated steel sheet and method of producing the same | Takashi Ueno, Yoichiro Yamanaka, Yoshitsugu Suzuki, Masanari TOMOZAWA, Takashi Kawano | 2025-01-14 |
| 10975450 | Low alloy high strength thick-walled seamless steel pipe for oil country tubular goods | Mitsuhiro Okatsu, Masao Yuga, Kenichiro Eguchi | 2021-04-13 |
| 10465261 | Steel material for highly deformable line pipes having superior strain aging resistance and superior HIC resistance, method for manufacturing same, and welded steel pipe | Kyono Yasuda, Daisuke Mizuno, Nobuyuki Ishikawa | 2019-11-05 |
| 10344362 | Steel material for highly deformable line pipes having superior strain aging resistance and superior HIC resistance, method for manufacturing same, and welded steel pipe | Kyono Yasuda, Daisuke Mizuno, Nobuyuki Ishikawa | 2019-07-09 |
| 9234254 | High-strength seamless steel tube, having excellent resistance to sulfide stress cracking, for oil wells and method for manufacturing the same | Kenichiro Eguchi, Yuji Tanaka, Mitsuo Kimura, Yasuhide Ishiguro, Katsumi Yamada | 2016-01-12 |
| 7291402 | Surface-treated steel sheets of good white rust resistance, and method for producing them | Okai Kazuhisa, Akira Matsuzaki, Naoto Yoshimi, Takahiro Kubota, Masaaki Yamashita +8 more | 2007-11-06 |