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.

Date of Patent:
Oct. 01, 2019

Filed:

Jan. 31, 2014
Applicant:

Nippon Piston Ring Co., Ltd., Saitama, JP;

Inventors:

Satoshi Ikemi, Tochigi, JP;

Hiroshi Oshige, Tochigi, JP;

Kenichi Sato, Tochigi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 3/02 (2006.01); F01L 3/20 (2006.01); C22C 38/10 (2006.01); C22C 38/12 (2006.01); B22F 1/00 (2006.01); B22F 5/10 (2006.01); B32B 15/00 (2006.01); C22C 38/18 (2006.01); C22C 29/00 (2006.01); C22C 38/30 (2006.01); C22C 38/08 (2006.01); C22C 30/00 (2006.01); C22C 38/40 (2006.01); B32B 15/01 (2006.01); B32B 1/08 (2006.01); B32B 15/04 (2006.01); B32B 15/18 (2006.01); C22C 33/02 (2006.01); C22C 38/00 (2006.01); C22C 19/07 (2006.01); C22C 27/04 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/52 (2006.01); C22C 38/60 (2006.01); C22C 38/34 (2006.01);
U.S. Cl.
CPC ...
F01L 3/02 (2013.01); B22F 1/007 (2013.01); B22F 1/0014 (2013.01); B22F 5/106 (2013.01); B32B 1/08 (2013.01); B32B 15/00 (2013.01); B32B 15/01 (2013.01); B32B 15/011 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); B32B 15/18 (2013.01); C22C 19/07 (2013.01); C22C 27/04 (2013.01); C22C 29/00 (2013.01); C22C 29/005 (2013.01); C22C 30/00 (2013.01); C22C 33/02 (2013.01); C22C 38/00 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/08 (2013.01); C22C 38/10 (2013.01); C22C 38/105 (2013.01); C22C 38/12 (2013.01); C22C 38/18 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01); C22C 38/30 (2013.01); C22C 38/34 (2013.01); C22C 38/40 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/52 (2013.01); C22C 38/60 (2013.01); F01L 3/20 (2013.01); F01L 2101/00 (2013.01); F01L 2103/00 (2013.01); F01L 2103/01 (2013.01); F01L 2820/01 (2013.01); F05C 2201/0436 (2013.01); F05C 2251/14 (2013.01); Y10T 428/1259 (2015.01); Y10T 428/12542 (2015.01); Y10T 428/12576 (2015.01); Y10T 428/12583 (2015.01); Y10T 428/12611 (2015.01); Y10T 428/12618 (2015.01); Y10T 428/12854 (2015.01); Y10T 428/12861 (2015.01); Y10T 428/12917 (2015.01); Y10T 428/12931 (2015.01); Y10T 428/12937 (2015.01); Y10T 428/12944 (2015.01); Y10T 428/12951 (2015.01); Y10T 428/12958 (2015.01); Y10T 428/12965 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/12979 (2015.01); Y10T 428/12993 (2015.01); Y10T 428/13 (2015.01); Y10T 428/215 (2015.01); Y10T 428/218 (2015.01); Y10T 428/24273 (2015.01); Y10T 428/24281 (2015.01);
Abstract

A highly wear-resistant valve seat insert for an internal combustion engine, having a material composition in which hard-particles are uniformly and finely dispersed in the matrix phase, and which is excellent in wear-resistance and radial crushing strength, based on a blended fine powder and a matrix forming powder with a particle size approximately equal to that of the hard-particles so as to prevent the hard-particles from aggregating and thus coarsely dispersing as a hard-particle phase.


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