Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6640876 | Method and apparatus for manufacturing copper and/or copper alloy ingot having no shrinkage cavity and having smooth surface without wrinkles | Kenji Yajima, Norikazu Ishida, Keiji Nogami, Akihiro Kakimoto | 2003-11-04 |
| 6589473 | Apparatus for manufacturing low-oxygen copper | Haruhiko Asao, Keiji Nogami, Tutomu Masui, Kazumasa Hori, Kenji Wakiguchi +2 more | 2003-07-08 |