4. Optics: image projectors
  5. Structurally related projector and screen

Koji Ohgaki

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Lens barrel

Optical: systems and elements – Lens – With variable magnification
Reexamination Certificate

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Portable microfilm reader

Optics: image projectors – Structurally related projector and screen
Patent

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Portable microfilm reader

Optics: image projectors – Structurally related projector and screen
Patent

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Rod integrator manufacturing method and rod integrator

Optical waveguides – Noncyclindrical or nonplanar shaped waveguide
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1602445

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