- 专利标题： Magnetic transfer apparatus and magnetic recording medium
-
申请号： US10845155申请日： 2004-05-14
-
公开(公告)号： US07012681B2公开(公告)日： 2006-03-14
- 发明人: Masaki Kondo , Mitsuo Kobayashi , Eiichi Fujisawa
- 申请人： Masaki Kondo , Mitsuo Kobayashi , Eiichi Fujisawa
- 申请人地址： JP Osaka JP Kanagawa
- 专利权人： Matsushita Electric Industrial Co., Ltd.,Fuji Electric Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.,Fuji Electric Co., Ltd.
- 当前专利权人地址： JP Osaka JP Kanagawa
- 代理机构： Venable, LLP
- 代理商 Michael A. Sartori
- 优先权： JP2000-177505 20000613
- 主分类号： G01N21/00
- IPC分类号： G01N21/00
摘要：
A magnetic transfer apparatus writing a servo signal by magnetically transferring to a magnetic recording medium, and an optical type inspection apparatus for optically inspecting scratch or foreign matter on the magnetic recording medium wherein a characteristic grease is used for these apparatuses are disclosed. Grease used in the magnetic transfer apparatus or the optical type inspection apparatus generates sulfur type gas in amount less than or equal to 0.5 ppb.
公开/授权文献
信息查询
