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:
Feb. 18, 2025
Filed:
Apr. 28, 2020
Applicants:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Sumitomo Electric Sintered Alloy, Ltd., Takahashi, JP;
Inventors:
Kazunari Shimauchi, Osaka, JP;
Tomoyuki Ueno, Osaka, JP;
Tomoyuki Ishimine, Osaka, JP;
Munehiro Noda, Osaka, JP;
Assignees:
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
SUMITOMO ELECTRIC SINTERED ALLOW, LTD., Takahashi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P 15/14 (2006.01); B22F 3/16 (2006.01); B22F 5/08 (2006.01); B23F 9/08 (2006.01); B23F 21/16 (2006.01); C22C 38/04 (2006.01); C22C 38/08 (2006.01); C22C 38/12 (2006.01);
U.S. Cl.
CPC ...
B23P 15/14 (2013.01); B22F 3/16 (2013.01); B22F 5/08 (2013.01); B23F 9/082 (2013.01); B23F 21/16 (2013.01); C22C 38/04 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); B22F 2301/35 (2013.01);
Abstract
A method for manufacturing a sintered gear comprising the steps of: preparing a cylindrical green compact; gear-cutting the green compact with a hob; and sintering the gear-hobbed green compact, wherein the hob is such that a ratio of a number of cutting edges thereof per round to a number of starts thereof exceeds 8.