Issued Patents All Time
Showing 1–2 of 2 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, Tosiharu Harada, Yosiro Okuda +3 more | 1989-10-10 |
| 4773931 | Spindle ferromagnetic alloy particles | Akio Mishima, Yosiro Okuda, Hiroshi Sumita, Akira Mukaizaka, Tokihiro Kurata | 1988-09-27 |