4. Electricity: circuit makers and breakers
  5. Special application
  6. Actuated concurrently with operation or use of art device

Young-Chang Kim

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Apparatus for measuring the focus of a light exposure system...

Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Reexamination Certificate

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Compensating masks, multi-optical systems using the masks,...

Photocopying – Projection printing and copying cameras – Focus or magnification control
Reexamination Certificate

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Focus test mask for projection exposure system, focus monitoring

Optics: measuring and testing – By alignment in lateral direction – With registration indicia
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Method of forming p-n junction on ZnO thin film and p-n...

Active solid-state devices (e.g. – transistors – solid-state diode – Semiconductor is an oxide of a metal or copper sulfide
Reexamination Certificate

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Method of reducing the impact of stray light during optical...

Radiation imagery chemistry: process – composition – or product th – Plural exposure steps
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Profile ID: LFUS-PAI-P-338996

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