Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859255 | Permanent magnets | Setsuo Fujimura, Masato Sagawa, Hitoshi Yamamoto, Norio Togawa | 1989-08-22 |
| 4840684 | Isotropic permanent magnets and process for producing same | Setsuo Fujimura, Masato Sagawa | 1989-06-20 |
| 4837114 | Process for producing magnets having improved corrosion resistance | Takaki Hamada, Tetsuji Hayakawa | 1989-06-06 |
| 4826546 | Process for producing permanent magnets and products thereof | Hitoshi Yamamoto, Masato Sagawa, Setsuo Fujimura | 1989-05-02 |