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US 2019/0224907 A1Published application
Tube
AssigneeFUJIFILM Corporation
InventorsMitsuru IWATA, Kouji TONOHARA
Life of this patent
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Abstract
The tube is stretchable. The tube is stretched by applying tension in a longitudinal direction. The tube returns to its short state by releasing the above-described tension applied in the longitudinal direction. A plurality of protrusions are formed on an inner surface of the tube. Each of the plurality of protrusions extends in a circumferential direction. The plurality of protrusions are arranged side by side in the longitudinal direction of the tube. A pitch of the protrusions is less than or equal to 1.5 μm.
Claims4
A stretchable tube,
- wherein a plurality of protrusions extending in a circumferential direction are formed side by side on an inner surface in a longitudinal direction, and
- wherein a pitch of the protrusions is less than or equal to 1.5 μm.
Dependencies are inferred from the claim text.