Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6629516 | Exhaust port structure of internal combustion engine | Masahiko Minemi, Tsuneo Endoh, Taizou Kitamura, Atsushi Baba | 2003-10-07 |
| 6537484 | Method for manufacturing a multi-layer plastic pipe | Yasuo Ezaki | 2003-03-25 |