ininventor:"Zhiming Ji" - Google Search

About 3 results

www.google.com/patents/US5113080

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An optical displacement measuring apparatus utilizing triangulation, includes a
laser for projecting a laser light beam with a first optical axis ...

www.google.com/patents/US6253116

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A method and apparatus for forming three-dimensional patterns by depositing a
crystalloid material onto substrate in a layer by layer fashion.

www.google.com/patents/US5990587

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In one embodiment, a device for generating ultra-high precision rectilinear
movement based on aerostatic suspension and magnetic traction, ...

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