Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6656417 | Punch, powder pressing apparatus and powder pressing method | Seiichi Kohara | 2003-12-02 |
| 6649124 | Powder pressing apparatus and powder pressing method | Seiichi Kohara, Tsutomu Harada | 2003-11-18 |