Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7871595 | Fine barium titanate particles | Koichiro Kanda, Ryuji Fujita, Yuji Mishima, Seiji Okazaki, Hidetomo Unemoto | 2011-01-18 |
| 7431908 | Coated spherical tetragonal barium titanate particles and process for producing the same | Toshiharu Harada, Yuji Mishima, Seiji Okazaki, Hidetomo Unemoto, Kazuyoshi Murashige +2 more | 2008-10-07 |
| 7172642 | Magnetic metal particles containing iron as main component, process for producing the same and magnetic recording medium using the same | Akinori Yamamoto, Yasutaka Ota, Masaaki Maekawa | 2007-02-06 |
| 6808697 | Spherical tetragonal barium titanate particles and process for producing the same | Toshiharu Harada, Yuji Mishima, Seiji Okazaki, Hidetomo Unemoto, Kazuyoshi Murashige +2 more | 2004-10-26 |
| 6753084 | Spindle-shaped magnetic alloy particles for magnetic recording, and magnetic recording medium | Masaaki Maekawa, Kenji Okinaka, Akinori Yamamoto, Yasutaka Ota | 2004-06-22 |
| 6183868 | Spindle-shaped goethite particles, spindle-shaped hematite particles and spindle-shaped magnetic iron based alloy particles | Kohji Mori | 2001-02-06 |
| 6048412 | Spindle-shaped goethite particles, spindle-shaped hematite particles and spindle-shaped magnetic iron based alloy particles | Kohji Mori | 2000-04-11 |
| 5399278 | Process for producing acicular goethite particles and acicular magnetic iron oxide particles | Katsumi Yamashita, Tosiharu Harada, Kazuhisa INABA, Hideaki Sadamura, Tomohisa Moriya +1 more | 1995-03-21 |
| 5338355 | Method of preparing goethite | Berndt-Ullrich Kohler | 1994-08-16 |
| 5336421 | Spinel-type spherical, black iron oxide particles and process for the producing the same | Eiichi Kurita, Kazuo Fujioka | 1994-08-09 |