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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.:

US 9422994 B1

PDFFull Text
Date of Patent:
Aug. 23, 2016

Filed:

Aug. 29, 2013

Manufacturing method of cast-iron friction member

Applicant:

Akebono Brake Industry Co., Ltd., Tokyo, JP;

Inventors:

Yoshiyuki Sugai, Tokyo, JP;

Katsuji Seki, Tokyo, JP;

Takuya Takada, Tokyo, JP;

Assignee:

AKEBONO BRAKE INDUSTRY CO., LTD., Tokyo, JP;

Attorney:

Drinker Biddle & Reath LLP

Primary Examiner:

Matthew E Hoban

Assistant Examiner:

Anthony Liang

Int. Cl.
CPC ...
C23C 8/00 (2006.01); C23C 22/00 (2006.01); F16D 65/12 (2006.01); C23C 8/30 (2006.01); C23C 8/32 (2006.01); C23C 8/80 (2006.01); F16D 65/10 (2006.01);
U.S. Cl.
CPC ...
F16D 65/127 (2013.01); C23C 8/30 (2013.01); C23C 8/32 (2013.01); C23C 8/80 (2013.01); F16D 65/10 (2013.01); F16D 65/12 (2013.01); F16D 2200/0013 (2013.01); F16D 2250/0053 (2013.01);
Abstract

A cast-iron friction member is manufactured by: performing a nitrocarburizing treatment on a cast workpiece at a treatment temperature of 500° C. to 600° C. to thus form a nitrogen compound layer on a surface of the workpiece; and exposing the workpiece to an atmosphere when a temperature becomes 400° C. to 480° C. after the nitrocarburizing treatment so as to cool the workpiece to a room temperature while keeping a contact state with oxygen to thus form an iron oxide layer including FeOon a surface of the nitrogen compound layer.

Find Patent Forward Citations

Sugai, Yoshiyuki. (2016). Manufacturing method of cast-iron friction member (U.S. Patent No. 9422994). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9422994

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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