Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6059988 | Magnetite particles and process for production thereof | Takeshi Miyazono, Masahiro Miwa | 2000-05-09 |
| 6013193 | Magnetite particles and process for production thereof | Takeshi Miyazono, Masahiro Miwa | 2000-01-11 |
| 5759435 | Magnetite particles and process for production thereof | Takeshi Miyazono, Hiroyuki Watanabe | 1998-06-02 |
| 5733471 | Magnetite particles and process for production of the same | Katsuhiko Yoshimaru, Tadashi Yamanishi | 1998-03-31 |
| 5556571 | Magnetite particles and process for preparing the same | Takeshi Miyazono, Hiroyuki Watanabe, Tadashi Yamanishi | 1996-09-17 |
| 5356712 | Magnetite particles | Akira Oyama, Tadashi Yamanishi | 1994-10-18 |