Tray for carrying magnetoresistive head of magnetic disk
AssigneeYukadenshi Co., Ltd.
InventorsShigeru Tanaka, Koichi Sagisaka, Tomohiro Kaniwa, Mitsuo Sato, Michiaki Sakatoku
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Abstract
A tray for carrying magnetoresistive heads of magnetic disks which is obtained by molding a resin composition comprising 100 parts by weight of a thermoplastic resin material and, incorporated therein, from 0.1 to 8 parts by weight of carbon fibrils having a fiber diameter of 100 nm or smaller and a fiber length/fiber diameter ratio of 5 or larger. The tray has a stable surface resistivity in the range of from 104 to 1012 Ω/□, has an even surface state, and hardly generates particles upon scratching, wearing, or cleaning.
Claims17
A tray for carrying a magnetoresistive head of magnetic disks, said magnetoresistive head of magnetic disks comprising an arm part, an MR element attached to the arm part, and a lead wire connected to the MR element, characterized in that
- said tray is a molding of a resin composition comprising a thermoplastic resin material and carbon fibrils incorporated therein,
- said carbon fibrils have a fiber diameter of 100 nm or smaller and a fiber length/fiber diameter ratio of 5 or larger, and
- the incorporation amount of said carbon fibrils is from 0.1 to 8 parts by weight per 100 parts by weight of said thermoplastic resin material,
- and said tray having a substantially even surface resistivity within the range of from 104 to 1012 Ω/□ as measured by using a probe diameter of 2 mm and a probe-to-probe distance of 20 mm.
A tray carrying a magnetoresistive head of magnetic disks, said magnetoresistive head of magnetic disks comprising an arm part, an MR element attached to the arm part, and a lead wire connected to the MR element, characterized in that
- said tray is a molding of a resin composition comprising a thermoplastic resin material and carbon fibrils incorporated therein,
- said carbon fibrils have a fiber diameter of 100 nm or smaller and a giver length/fiber diameter ratio of 5 or larger, and
- the incorporation amount of said carbon fibrils is from 0.1 to 8 parts by weight per 100 parts by weight of said thermoplastic resin material,
- and said tray having a substantially even surface resistivity within the range of from 104 to 1012 Ω/□ as measured by using a probe diameter of 2 mm and a probe-to-probe distance of 20 mm.
Dependencies are inferred from the claim text.