Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5599378 | Spindle-shaped magnetic iron based alloy particles and process for producing the same | Akio Mishima, Tosiharu Harada, Yasutaka Ota, Kenji Okinaka, Kohji Mori +4 more | 1997-02-04 |
| 5582914 | Magnetic iron oxide particles and method of producing the same | Atsushi Takedoi, Tosiharu Harada, Masaru Isoai, Kazuhiro Fujita | 1996-12-10 |
| 5466306 | Spindle-shaped magnetic iron based alloy particles | Akio Mishima, Tosiharu Harada, Yasutaka Ota, Kenji Okinaka, Kohji Mori +4 more | 1995-11-14 |
| 5314750 | Magnetic iron oxide particles and method of producing same | Atsushi Takedoi, Tosiharu Harada, Masaru Isoai, Kazuhiro Fujita | 1994-05-24 |
| 5238483 | Acicular magnetic iron based alloy particles for magnetic recording and method of producing the same | Akio Mishima, Yasutaka Ota, Hirofumi Kawasaki, Kenji Okinaka, Kunio Ikemoto +3 more | 1993-08-24 |
| 5156922 | Acicular magnetic iron based alloy particles for magnetic recording and method of producing the same | Akio Mishima, Yasutaka Ota, Hirofumi Kawasaki, Kenji Okinaka, Kunio Ikemoto +3 more | 1992-10-20 |
| 5137783 | Acicular magnetic metal particles containing iron as main ingredient and process for producing the same | Yasutaka Ota, Hiroshi Fukui, Takashi Ogawa, Tsuneo Suhara | 1992-08-11 |
| 4865834 | Process for producing plate-like magnetite particles and plate-like maghemite particles | Yoshiro Okuda, Hideaki Sadamura | 1989-09-12 |