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US 12,097,573 B2Granted
Laser processing method and preform
AssigneeRicoh Company, Ltd.
InventorYoichi Ichikawa
Life of this patent
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Abstract
A laser processing method includes: marking multiple concaves on a surface of a preform before blow molding.
Claims13
A laser processing method comprising:
- marking multiple concaves on a surface of a preform before blow molding;
- and
- marking multiple concaves on the surface of the preform after the blow molding.
Dependencies are inferred from the claim text.