Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7799149 | Oil country tubular good for expansion in well and manufacturing method thereof | Taro Ohe, Keiichi Nakamura, Hideki Takabe, Toshiharu Abe, Masakatsu Ueda | 2010-09-21 |
| 5849111 | Duplex stainless steel | Masaaki Igarashi, Kunio Kondo, Kazuhiro Ogawa, Masakatsu Ueda | 1998-12-15 |