Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6866765 | Electrolytic copper-plated R-T-B magnet and plating method thereof | Setsuo Ando, Tsutomu Nakamura, Toru Fukushi | 2005-03-15 |
| RE38042 | Anisotropic magnetic powder and magnet thereof and method of producing same | Yasuto Nozawa, Katsunori Iwasaki, Shigeho Tanigawa, Masaaki Tokunaga | 2003-03-25 |
| RE38021 | Anisotropic magnetic powder and magnet thereof and method of producing same | Masaaki Tokunaga | 2003-03-11 |
| 5329267 | Magnet assembly and a voice coil motor using such magnet assembly | Koichi Oda | 1994-07-12 |
| 5230751 | Permanent magnet with good thermal stability | Masaaki Tokunaga, Hiroshi Kogure | 1993-07-27 |
| 5223047 | Permanent magnet with good thermal stability | Masaaki Tokunaga, Hiroshi Kogure | 1993-06-29 |
| 5096509 | Anisotropic magnetic powder and magnet thereof and method of producing same | Yasuto Nozawa, Katsunori Iwasaki, Shigeho Tanigawa, Masaaki Tokunaga | 1992-03-17 |
| 4983232 | Anisotropic magnetic powder and magnet thereof and method of producing same | Yasuto Nozawa, Katsunori Iwasaki, Shigeho Tanigawa, Masaaki Tokunaga | 1991-01-08 |
| 4888068 | Process for manufacturing permanent magnet | Masaaki Tokunaga, Noriaki Meguro, Shigeho Tanigawa | 1989-12-19 |