Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6749954 | Welded steel pipe having excellent hydroformability and method for making the same | Takaaki Toyooka, Masatoshi Aratani, Yoshikazu Kawabata, Yuji Hashimoto, Akira Yorifuji +2 more | 2004-06-15 |
| 6723453 | Welded steel pipe having excellent hydroformability and method for making the same | Takaaki Toyooka, Masatoshi Aratani, Yoshikazu Kawabata, Yuji Hashimoto, Akira Yorifuji +2 more | 2004-04-20 |
| 6682829 | Welded steel pipe having excellent hydroformability and method for making the same | Takaaki Toyooka, Masatoshi Aratani, Yoshikazu Kawabata, Yuji Hashimoto, Akira Yorifuji +2 more | 2004-01-27 |