Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6812197 | Iron-based cleaning powder | Hitoshi Sakuma, Kenji Kawai, Masaaki Matsubara, Yasuko Yakou, Koji Yamamoto | 2004-11-02 |
| 6808089 | Powder filling method and powder filling apparatus | Yasuhiro Hashimoto, Masahiro Murakami | 2004-10-26 |
| 6749767 | Powder for high strength dust core, high strength dust core and method for making same | Hiroyuki Mitani, Tsukasa Yuri, Kazuhisa Fujisawa, Masahiro Murakami, Hirofumi Houjou | 2004-06-15 |