Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6599641 | Structural body formed by friction stir welding of hollow extruded frame members | Hideyuki Nakamura, Takeshi Kawasaki, Yoshihiko Ina | 2003-07-29 |
| 6582832 | Hollow-shaped material | Takeshi Kawasaki, Sumio Okuno | 2003-06-24 |
| 6550397 | Car body | Takeshi Kawasaki, Sumio Okuno, Kentaro Masai, Kazufumi Yamaji | 2003-04-22 |