Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6464810 | Brass material, brass tube and their production method | Toru Uchida | 2002-10-15 |
| 6458222 | Metal material, brass and method for manufacturing the same | Ryuji Matsubara, Nobuyuki Ashie | 2002-10-01 |