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US 12,502,820 B2Granted
Resin container manufacturing method and resin container manufacturing apparatus
AssigneeRicoh Company, Ltd.
InventorTakayuki Nakamura
Life of this patent
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Abstract
A resin container manufacturing method includes: forming a first pattern on a preform of a resin container; and forming a second pattern on the preform based on a position of the first pattern on the preform.
Claims20
A resin container manufacturing method comprising:
- forming a first pattern on a preform of a resin container, the first pattern being a laser marking located at or on threads of a threaded region;
- determining a position of the first pattern in a circumferential direction of the preform after forming the first pattern;
- determining a position of the preform in a mold in the circumferential direction based on the position of the first pattern;
- forming, after determining the position of the preform in the mold, a second pattern on the preform based on the position of the first pattern on the preform which has been determined;
- and
- blowing air into the preform in the mold, after the second pattern is formed, to form the resin container.
3 more elements
Dependencies are inferred from the claim text.