4. Optical waveguides
  5. With optical coupler
  6. Input/output coupler

Koon Wing Tsang

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Integrated optical wavelength discrimination devices and methods

Optical waveguides – With optical coupler – Input/output coupler
Patent

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Light source of testing light sensor, test apparatus and method

Communications: electrical – Condition responsive indicating system – With particular system function
Reexamination Certificate

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Photodetection system and circuit for amplification

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate

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Photodetector and device employing the photodetector for...

Semiconductor device manufacturing: process – Making device or circuit responsive to nonelectrical signal – Responsive to electromagnetic radiation
Reexamination Certificate

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Photodetector and device employing the photodetector for...

Active solid-state devices (e.g. – transistors – solid-state diode – Responsive to non-electrical signal – Electromagnetic or particle radiation
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1596918

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