Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6915821 | Metal tube and its production method | Tetsuya Ooyauchi | 2005-07-12 |
| 6883552 | Metal tube and its production method | Tetsuya Ooyauchi | 2005-04-26 |
| 6877652 | Metal tubular body and manufacturing method thereof | Tetsuya Ooyauchi | 2005-04-12 |