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:
Jan. 10, 2012

Filed:

Nov. 29, 2005
Applicants:

Shinji Okada, Fujisawa, JP;

Yasushi Watanabe, Maebashi, JP;

Naoki Hara, Maebashi, JP;

Seiichi Moriyama, Maebashi, JP;

Hideki Hidaka, Maebashi, JP;

Inventors:

Shinji Okada, Fujisawa, JP;

Yasushi Watanabe, Maebashi, JP;

Naoki Hara, Maebashi, JP;

Seiichi Moriyama, Maebashi, JP;

Hideki Hidaka, Maebashi, JP;

Assignee:

NSK Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21K 1/30 (2006.01); F16H 19/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of manufacturing a toothed power transmission member having an oil reservoir according to the present invention includes steps of forming primitive concave portion, which form a basis for the oil reservoir, on a surface of a toothed power transmission member work, and forming a tooth surface by processing the toothed power transmission member work such that a trace of the primitive concave portion is left on the toothed power transmission member thereby to form a toothed power transmission member. The trace of the primitive concave portion, which is formed in the step of forming a tooth surface and left on the toothed power transmission member, serves as the oil reservoir.


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