4. Optics: eye examining, vision testing and correcting
  5. Spectacles and eyeglasses
  6. Ophthalmic lenses or blanks

Masanao Kawahara

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Adjusting structure in an aspheric lens grinding apparatus

Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent

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Cemented lens and process for production thereof

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent

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Cemented lens and process for production thereof

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent

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Profile ID: LFUS-PAI-P-1333496

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