发明名称 |
Sieve, sifting device, solder balls, and method of sifting spherical particles |
摘要 |
This invention aims to enhance efficiency of a sieve and to greatly improve productivity of a sifting operation. There is provided a sieve comprising a metal plate including long holes, wherein the long holes are plurally provided such that lines extending in length directions thereof cross one another. |
申请公布号 |
US8267255(B2) |
申请公布日期 |
2012.09.18 |
申请号 |
US20100754665 |
申请日期 |
2010.04.06 |
申请人 |
KINUTA SEICHIN;OPTNICS PRECISION CO., LTD. |
发明人 |
KINUTA SEICHIN |
分类号 |
B07B1/46 |
主分类号 |
B07B1/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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