Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5783794 | Method and material for resistance welding steel-base metal sheet to aluminum-base metal sheet | Hatsuhiko Oikawa, Yasuo Takahashi, Tohru Saito, Yutaka Okuda, Kazuo Narita +2 more | 1998-07-21 |
| 5329981 | Method of producing a metal mold | Masahito Ito, Miyuki Koujiya, Hiroshi Sarai, Seiya Nakao, Takao Nomura +4 more | 1994-07-19 |