Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7219524 | Method for manufacturing high-pressure piping part and structure thereof | Shu Miyashita, Masami Tanaka, Toshihiro Imai | 2007-05-22 |
| 7073256 | Method of manufacturing center electrode for spark plug | Kazuhiko Tanaka, Akihiro Endou | 2006-07-11 |