Abstract: A coil component includes a core that includes a core part having a first end portion and a second end portion; and a first wire and a second wire that are wound around the core part from the first end portion to the second end portion in substantially helical shapes so as to have substantially the same number of turns. The first wire is wound so as to form a first layer that contacts the peripheral surface of the core part, the second wire is wound such that at least part of the second wire forms a second layer on the outside of the first layer, and a first coil length formed by the first wire is longer than a second coil length formed by the second wire.

Abstract: A method for manufacturing an optical fiber ribbon where adjacent optical fibers are intermittently connected in a length direction includes: feeding the optical fibers along the length direction; and intermittently applying a resin in the length direction by: rotating, between adjacent ones of the optical fibers, a rotating member having a recess, and blocking the resin with a peripheral edge part of the rotating member where the recess is not formed. A moving speed, in the length direction, of the peripheral edge part at a position where the peripheral edge part blocks the resin between the optical fibers is slower than a feeding speed of the optical fibers.

Abstract: A coil component includes a core that includes a core part having a first end portion and a second end portion; and a first wire and a second wire that are wound around the core part from the first end portion to the second end portion in substantially helical shapes so as to have substantially the same number of turns. The first wire is wound so as to form a first layer that contacts the peripheral surface of the core part, the second wire is wound such that at least part of the second wire forms a second layer on the outside of the first layer, and a first coil length formed by the first wire is longer than a second coil length formed by the second wire.

Abstract: A method for manufacturing an optical fiber ribbon where adjacent optical fibers are intermittently connected in a length direction includes: feeding the optical fibers along the length direction; and intermittently applying a resin in the length direction by: rotating, between adjacent ones of the optical fibers, a rotating member having a recess, and blocking the resin with a peripheral edge part of the rotating member where the recess is not formed. A moving speed, in the length direction, of the peripheral edge part at a position where the peripheral edge part blocks the resin between the optical fibers is slower than a feeding speed of the optical fibers.