Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873010 | Spindle-like magnetic iron oxide particles and process for producing the same | Atsushi Takedoi, Hiroyuki Kondo, Masaru Isoai, Yoshitaka Yoshinaga, Tosiharu Harada +3 more | 1989-10-10 |
| 4773931 | Spindle ferromagnetic alloy particles | Akio Mishima, Hiroshi Sumita, Yoshitaka Yoshinaga, Akira Mukaizaka, Tokihiro Kurata | 1988-09-27 |
| 4495164 | Process for producing acicular magnetite or acicular maghemite | Tosiharu Harada | 1985-01-22 |
| 4406694 | Process for producing acicular ferromagnetic alloy particles and acicular ferromagnetic alloy particles obtained by the said process | Akio Mishima, Tosiharu Harada, Akira Mukaizaka | 1983-09-27 |