发明授权
- 专利标题： Magnetic recording substance
- 专利标题（中）： 磁记录物质
-
申请号： US646597申请日： 1976-01-05
-
公开(公告)号： US4076861A公开(公告)日： 1978-02-28
- 发明人: Masahiko Furukawa , Hiroshi Ogawa , Masashi Aonuma , Yasuo Tamai , Hiromi Nakahara , Masaaki Igarashi
- 申请人： Masahiko Furukawa , Hiroshi Ogawa , Masashi Aonuma , Yasuo Tamai , Hiromi Nakahara , Masaaki Igarashi
- 申请人地址： JA
- 专利权人： Fuji Photo Film Co., Ltd.
- 当前专利权人： Fuji Photo Film Co., Ltd.
- 当前专利权人地址： JA
- 优先权： JA50-5895 19750114
- 主分类号： G11B5/706
- IPC分类号： G11B5/706 ; B22F9/24 ; C09D5/23 ; C09D7/12 ; G11B5/842 ; H01F1/06 ; C22C1/00 ; H01F1/02
摘要：
This invention relates to a magnetic recording substance comprising a support and a magnetic layer containing a ferromagnetic metal powder of liquid phase reduction type in a binder, the ferromagnetic metal powder being obtained by mixing an aqueous slurry containing the ferromagnetic metal powder with an organic solvent capable of forming a minimum boiling azeotropic mixture with water and subjecting the mixture to distillation to remove the water.
公开/授权文献
- US4569055A Forehearth electrode firing 公开/授权日：1986-02-04
信息查询
IPC分类:
