4. Optical waveguides
  5. Planar optical waveguide
  6. Thin film optical waveguide

Tomoyuki Hakuta

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Optical waveguide device and multiple optical waveguide device

Optical waveguides – Planar optical waveguide – Thin film optical waveguide
Reexamination Certificate

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Optical waveguide device and multiple optical waveguide device

Optical waveguides – Planar optical waveguide – Thin film optical waveguide
Reexamination Certificate

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Waveguide type optical branching device

Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2390211

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