Blade member and structural member
AssigneeNikon Corporation
InventorsMasayuki SHIRAISHI, Takahiro KURASHIMA, Baku OGASAWARA
Life of this patent
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Abstract
A blade member on a surface of which a groove structure is formed, wherein the groove structure includes a plurality of first groove structures, a plurality of second groove structures, and a third groove structure, the plurality of first groove structures are formed to extend in a first direction, the plurality of second groove structures are formed to extend in a second direction that is different from the first direction, the third groove structure extends along a third direction that is different from the first and second directions, and is formed between one first groove structure and one second groove structure.
Claims24
A structural member on a surface of which a groove structure is formed, wherein
- the structural member comprises:
- a first area in which a plurality of groove structures, each of which extends in a first direction, are formed in a second direction intersecting the first direction;
- a second area in which the groove structure is not formed;
- and
- a third area which is located between the first area and the second area and in which a groove structure connected to the groove structure in the first area is formed,
- a depth of a plurality of groove structures formed in the third area is shallower as it is closer to the second area from the first area.
Dependencies are inferred from the claim text.