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:
Apr. 12, 2005
Filed:
Feb. 20, 2002
Applicants:
Takuro Yamaguchi, Kanagawa, JP;
Keizo Otani, Kanagawa, JP;
Jun Katoh, Kobe, JP;
Toshiki Satou, Kobe, JP;
Satoshi Abe, Kobe, JP;
Masakazu Ikeda, Kobe, JP;
Inventors:
Takuro Yamaguchi, Kanagawa, JP;
Keizo Otani, Kanagawa, JP;
Jun Katoh, Kobe, JP;
Toshiki Satou, Kobe, JP;
Satoshi Abe, Kobe, JP;
Masakazu Ikeda, Kobe, JP;
Assignees:
Nissan Motor Co., Ltd., Yokohama, JP;
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H055/17 ; F16H055/06 ;
U.S. Cl.
CPC ...
Abstract
A high strength gear is provided which comprises a base metal of an iron-base alloy, the base metal being carburized or carbonitrided and having a tooth surface, and a coating containing Fe nitride and/or Fe carbonitride, formed on the tooth surface. A method of forming a high strength gear is also provided.