The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 18, 2015
Filed:
Sep. 17, 2010
Koichi Kanai, Yokohama, JP;
Kiyokazu Sugiyama, Chigasaki, JP;
Eiji Shiotani, Kawasaki, JP;
Kimio Nishimura, Yokohama, JP;
Junichi Uchiyama, Kawasaki, JP;
Kiyohisa Suzuki, Ebina, JP;
Jun Inomata, Yokohama, JP;
Daisuke Terada, Yokohama, JP;
Akira Shimizu, Yokohama, JP;
Hidenobu Matsuyama, Yokosuka, JP;
Kiyoshi Hasegawa, Yokohama, JP;
Takashi Iiya, Tokyo, JP;
Koichi Kanai, Yokohama, JP;
Kiyokazu Sugiyama, Chigasaki, JP;
Eiji Shiotani, Kawasaki, JP;
Kimio Nishimura, Yokohama, JP;
Junichi Uchiyama, Kawasaki, JP;
Kiyohisa Suzuki, Ebina, JP;
Jun Inomata, Yokohama, JP;
Daisuke Terada, Yokohama, JP;
Akira Shimizu, Yokohama, JP;
Hidenobu Matsuyama, Yokosuka, JP;
Kiyoshi Hasegawa, Yokohama, JP;
Takashi Iiya, Tokyo, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A cylindrical internal surface processing method comprises forming a cylinder bore, roughening an upper section of the bore, depositing coating onto the bore, and machining a lower section of the bore and the coating. The forming of the cylinder bore includes forming the upper and lower sections with the lower section being axially spaced from the upper section and having an axial length greater than zero. The roughening creates a roughened surface such that a radially innermost edge of the roughened surface has an internal diameter smaller than an internal diameter of the lower section. The coating is deposited to cover the upper section and at least a portion of the lower section. The machining forms a tapered portion and a cylindrical portion, a radially outermost edge of the cylindrical portion having an internal diameter larger than that of a radially outermost edge of the roughened surface.