Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6938449 | Hydraulic forming process, hydraulic forming device and metal separator for a fuel cell formed by hydraulic forming process | Masanao Shiomi, Naoki Yoshioka | 2005-09-06 |
| 6860135 | Method for removing strain from press-formed workpiece, and forming press | Naoki Yoshioka, Yuichi Yagami, Mikio Wada, Tsuyoshi Takahashi | 2005-03-01 |