Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9707614 | Tube expanding method for manufacturing metal tube | Tatsuro Katsumura, Seiichiro Nambu, Kazutoshi Ishikawa | 2017-07-18 |
| 8168008 | Martensitic stainless steel pipe | Yukio Miyata, Mitsuo Kimura, Katsumi Masamura | 2012-05-01 |
| 6540848 | High strength, high toughness, seamless steel pipe for line pipe | Yukio Miyata, Mitsuo Kimura, Takaaki Toyooka | 2003-04-01 |
| 6521057 | High-strength high-toughness steel products | Mitsuhiro Okatsu, Fumimaru Kawabata, Keniti Amano | 2003-02-18 |
| 6299710 | Method of producing a bainite steel product | Mitsuhiro Okatsu, Fumimaru Kawabata, Keniti Amano | 2001-10-09 |
| 5900076 | Bainitic steel materials having a less scattering of properties and method of producing the same | Tohru Hayashi, Keniti Amano, Mitsuhiro Okatsu, Kenji Oi, Fumimaru Kawabata +2 more | 1999-05-04 |
| 5766381 | Method of producing bainitic steel materials having a less scattering of properties | Tohru Hayashi, Keniti Amano, Mitsuhiro Okatsu, Kenji Oi, Fumimaru Kawabata +2 more | 1998-06-16 |