发明授权
- 专利标题: Recording disk with low total indicated runout
- 专利标题(中): 录制磁盘,总共指示跳动
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申请号: US823190申请日: 1986-01-27
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公开(公告)号: US4797764A公开(公告)日: 1989-01-10
- 发明人: Arlin B. Doering
- 申请人: Arlin B. Doering
- 申请人地址: MN St. Paul
- 专利权人: Minnesota Mining and Manufacturing Company
- 当前专利权人: Minnesota Mining and Manufacturing Company
- 当前专利权人地址: MN St. Paul
- 主分类号: B29C65/08
- IPC分类号: B29C65/08 ; B29C65/48 ; G11B5/82 ; G11B23/00
摘要:
A magnetic recording medium disk with substantially improved tolerances comprising:a hub including a center portion and recessed flange portion, the center portion having a planar drive surface; magnetic medium, including a side zero and a side one; and an adhesive bonding the side one of the medium to the flange of the hub, wherein the side zero of the medium is fixed a precise, desired distance .alpha. from the plane of the drive surface and the total indicated runout of the hub used divided by the total indicated runout of the distance .alpha. is greater than one. A method and apparatus for manufacturing a magnetic recording medium disk with substantially improved tolerances by applying ultrasonic vibrations to the medium and a hot melt adhesive until the precise desired distance .alpha. is achieved.
公开/授权文献
- US5249413A Rake apparatus 公开/授权日:1993-10-05
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