发明授权
- 专利标题: Magnetic transfer apparatus
- 专利标题(中): 磁转移装置
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申请号: US11121932申请日: 2005-05-05
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公开(公告)号: US07054080B2公开(公告)日: 2006-05-30
- 发明人: Masakazu Nishikawa , Kazuhiro Niitsuma , Akito Kamatani
- 申请人: Masakazu Nishikawa , Kazuhiro Niitsuma , Akito Kamatani
- 申请人地址: JP Kanagawa
- 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: JP Kanagawa
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2001-181933 20010615; JP2001-181936 20010615; JP2001-181943 20010615; JP2001-186800 20010620; JP2001-206462 20010706; JP2001-211022 20010711; JP2001-302230 20010928
- 主分类号: G11B5/86
- IPC分类号: G11B5/86
摘要:
By bring a master carrier and a slave medium into close contact with uniform force when executing magnetic transfer by applying transfer magnetic field in the state that the master carrier and slave medium is in confronted close contact and received within a holder, inferiority of transfer such as omission of signals is prevented and quality of transfer signals is enhanced.The magnetic transfer apparatus executes magnetic transfer by applying transfer magnetic field by means of a magnetic field applying apparatus 5 after a master carrier 3, 4 bearing transfer information and a slave medium 2 to be transferred are brought into confronted close contact and received within a holder 10, wherein said holder 10 has a substantially circular shape and in particular, the circularity of holder is not less than 98%, wherein the flexural rigidity=Ed3/12 determined by Young's modulus E and thickness d of the holder is in the range of 0.1˜30 kN·m2 when the width of close contact area between the slave medium and master carrier is defined as 1 m, and wherein the practical thickness of the holder is not less than 3 mm and not more than 15 mm.
公开/授权文献
- US20050200993A1 Magnetic transfer apparatus 公开/授权日:2005-09-15
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