Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11008633 | Non-oriented electrical steel sheet and production method thereof | Masanori Uesaka, Tadashi Nakanishi, Tomoyuki Okubo, Yoshihiko Oda, Hiroaki Nakajima | 2021-05-18 |
| 10920297 | High-strength seamless steel pipe for oil country tubular goods and method of producing the same | Masao Yuga, Yasuhide Ishiguro, Mitsuhiro Okatsu, Hiroki Ota | 2021-02-16 |
| 10876182 | High-strength seamless steel pipe for oil country tubular goods and method of producing the same | Masao Yuga, Yasuhide Ishiguro, Mitsuhiro Okatsu, Hiroki Ota | 2020-12-29 |
| 10844453 | High-strength seamless steel pipe for oil country tubular goods and method of producing the same | Masao Yuga, Yasuhide Ishiguro, Mitsuhiro Okatsu, Hiroki Ota | 2020-11-24 |
| 6841123 | Rust-resistant calcium steel | Yasuo Kishimoto, Shuji Takeuchi | 2005-01-11 |
| 6764528 | Process for producing high-nitrogen ultralow-carbon steel | Shuji Takeuchi, Hisashi Ogawa, Yuki Nabeshima, Yasuyuki Masumoto | 2004-07-20 |
| 6120578 | Method of producing cluster-free Al-killed steel | Hakaru Nakato, Kenichi Sorimachi | 2000-09-19 |
| 6117389 | Titanium killed steel sheet and method | Hirokazu Tozawa, Kenichi Sorimachi | 2000-09-12 |
| 5879479 | Method of making ultra low-carbon steel | Hakaru Nakato, Kenichi Sorimachi | 1999-03-09 |
| 5616188 | Method of producing molten aluminum-killed steel for thin steel sheet | Yoshiei Kato, Yoichi Ito, Kenichi Sorimachi | 1997-04-01 |