4. Communications: directive radio wave systems and devices (e.g.,
  5. Presence detection only

Ryuji Kawamoto

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Immersion object detection system and method

Communications: directive radio wave systems and devices (e.g. – Presence detection only
Reexamination Certificate

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Optical switch

Optical waveguides – With optical coupler – Switch
Reexamination Certificate

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Optical switch device

Optical waveguides – With optical coupler – Switch
Reexamination Certificate

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Optical switch device

Optical waveguides – With optical coupler – Switch
Reexamination Certificate

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