Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE40524 | Magnet powder-resin compound particles, method for producing such compound particles and resin-bonded rare earth magnets formed therefrom | Katsunori Iwasaki | 2008-09-30 |
| 6423386 | Magnet powder-resin compound particles, method for producing such compound particles and resin-bonded rare earth magnets formed therefrom | Katsunori Iwasaki | 2002-07-23 |
| 5338372 | Anisotropic rare-earth permanent magnets and method for making same, and metal mold for molding anisotropic permanent magnets | — | 1994-08-16 |
| 5164023 | Rare earth permanent magnet, method of heat treatment of same, and magnet body | Michihisa Shimizu | 1992-11-17 |
| 5080731 | Highly oriented permanent magnet and process for producing the same | Motoharu Shimizu | 1992-01-14 |
| 5049053 | Metal mold for molding anisotropic permanent magnets | — | 1991-09-17 |
| 4554232 | Magnetic toner | Takafumi Aoyama, Toshio Kumakura | 1985-11-19 |
| 4482623 | Preparation method of magnetic toner | Takafumi Aoyama, Toshio Kumakura | 1984-11-13 |
| 4457851 | Ferrite magnet and method of producing same | Noriyuki Noda | 1984-07-03 |