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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Harayama; Akira
Address:
Okaya, JP
No. of patents:
6
Patents:












Patent Number Title Of Patent Date Issued
6054225 Composite chromium plating film and sliding member covered thereof April 25, 2000
A piston ring is formed with a nitrided layer over all surfaces and formed with a composite chromium plating film over the nitrided layer in the outer circumferential surface. The composite chromium plating film has a network of cracks formed on the outer surface and interior. Spherical
6013380 Composite chromium plating film and sliding member covered thereof January 11, 2000
A piston ring formed with a nitrided layer over all surfaces and formed with a composite chromium plating film over the nitrided layer in the outer circumferential surface. The composite chromium plating film has a network of cracks formed on the outer surface and interior. Si.sub.3
5945226 Chromium alloy plating film, plating method thereof and member covered with said film August 31, 1999
A chromium alloy plating film is covered on the surface of sliding members and corrosion resistant members. The chromium alloy plating film is a Cr--Mo--I type alloy plating film containing iodine in 0.1 to 1.4 percent by weight and molybdenum in 0.4 to 3.8 percent by weight.
5295696 Combined oil ring March 22, 1994
A combined oil ring is comprised of a steel oil ring having a generally I-shaped section consisting of upper and lower rails and a web connecting the both rails and a coil expander for forcing the oil ring outwardly. Each of the outer circumferential sliding surfaces of the circumferenti
4420543 Bearing member of an internal combustion engine, having a flame sprayed surface December 13, 1983
In a bearing member of an internal combustion engine, having a flame sprayed surface, molybdenum or tungsten carbide is known as the material of the flame spray. The present invention aims to provide, for example a flame-sprayed piston ring with good heat-and-wear-resistance as well as a
4114282 Vertical centering method and jig for plating September 19, 1978
When plating an outer surface of a cylindrical article or an inner surface of a tubular article, in order to automatically achieve centering between the article to be plated and the opposed tubular or cylindrical electrode, there is provided a novel jig for supporting the cylindrical bod










 
 
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