Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6833036 | Rare earth permanent magnet | Makoto Nakane, Eiji Kato, Chikara Ishizaka | 2004-12-21 |
| 6811620 | R-T-B system rare earth permanent magnet | Chikara Ishizaka, Gouichi Nishizawa, Tetsuya Hidaka, Nobuya Uchida | 2004-11-02 |