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:
Nov. 24, 2015
Filed:
Feb. 17, 2010
Applicants:
Eiichirou Shimazu, Kuwana, JP;
Yasutake Hayakawa, Kuwana, JP;
Inventors:
Eiichirou Shimazu, Kuwana, JP;
Yasutake Hayakawa, Kuwana, JP;
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/41 (2006.01); F16C 33/44 (2006.01); B22C 9/28 (2006.01); B22D 17/22 (2006.01); B22D 21/04 (2006.01); F16C 33/38 (2006.01); F16C 33/49 (2006.01); F16C 33/56 (2006.01);
U.S. Cl.
CPC ...
B22C 9/28 (2013.01); B22D 17/22 (2013.01); B22D 21/04 (2013.01); F16C 33/385 (2013.01); F16C 33/44 (2013.01); F16C 33/495 (2013.01); F16C 33/56 (2013.01); F16C 2204/26 (2013.01); F16C 2220/04 (2013.01);
Abstract
A cage () is made of a magnesium alloy and has a light weight and a high strength. The cage () is made of a magnesium alloy such as AZ91D, and is formed by means of injection molding. In this cage (), a confluence region is brought away to outside the cage () during the injection molding. The confluence region is a region including voids formed by merging of flows of the magnesium alloy.