Patent Number: 6,254,999

Title: Plated product having recesses and anchor portions

Abstract: A plated product is provided which comprises a material of which the surface has many recesses, each having an opening of 5.about.100 .mu.m and a depth of 0.2 d.about.d (d: the size of the opening of a recess, .mu.m) and having an anchor portion. Further, a plurality of grooves are provided on the surface of the material. The width of the opening of each groove and the depth of each groove have specified values. The groove can be provided at each of both edges of its opening with a ridge portion. The angle of said groove to the surface of the material is within a range of specified values. A part of the thin film of metal enters the anchor portions of the recesses or grooves, so that the plated metal produced by this invention has a superior technical effect in that the thin film of metal hardly peels off the surface of the material.

Inventors: Ota; Kunio (Toyohashi, JP), Rokutanda; Hitoshi (Toyokawa, JP), Suzuki; Hiroaki (Toyokawa, JP), Kato; Shinobu (Nagoya, JP), Abe; Seietsu (Toyokawa, JP)

Assignee: Sintokogio, Ltd.

International Classification: B23P 11/00 (20060101); H05K 3/38 (20060101); B21C 037/02 (); B05D 003/12 ()

Expiration Date: 07/03/2018