Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8920583 | Steel pipe excellent in deformation characteristics and method of producing the same | Hitoshi Asahi, Tetsuo Ishitsuka, Toshiyuki Ogata | 2014-12-30 |
| 7648191 | Automobile strength member | Shinya Sakamoto, Yoshio Terada, Fumihiko Niiyama, Eizaburo Nakanishi, Masamoto Ono | 2010-01-19 |
| 5538044 | Welded steel pipe steel and welded steel pipe having good wear | Naoki Konno, Noriaki Suzuki | 1996-07-23 |
| 5275893 | Line pipe having good corrosion-resistance and weldability | Akihiro Miyasaki | 1994-01-04 |
| 4772771 | Method for the production of high strength electric seam welded oil-well pipe | Hiroshi Murayama, Youji Yamamoto | 1988-09-20 |