4. Bleaching and dyeing; fluid treatment and chemical modification
  5. Nontextile, dyeing process or product, including inorganic...
  6. Contact lens

Yasuhiro Kiyomatsu

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Process for producing colored contact lens

Bleaching and dyeing; fluid treatment and chemical modification – Nontextile – dyeing process or product – including inorganic... – Contact lens
Patent

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Process for producing shaped articles having improved surfaces

Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Nonmechanical aftertreatment
Patent

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Profile ID: LFUS-PAI-P-794454

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