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:
Aug. 16, 2011
Filed:
Sep. 26, 2006
Applicants:
Takao Taniguchi, Anjo, JP;
Hisao Shirai, Anjyo, JP;
Koji Ohbayashi, Anjo, JP;
Kazuaki Okada, Anjo, JP;
Hideo Kanisawa, Muroran, JP;
Shuji Kozawa, Muroran, JP;
Inventors:
Takao Taniguchi, Anjo, JP;
Hisao Shirai, Anjyo, JP;
Koji Ohbayashi, Anjo, JP;
Kazuaki Okada, Anjo, JP;
Hideo Kanisawa, Muroran, JP;
Shuji Kozawa, Muroran, JP;
Assignee:
AISIN AW Co., Ltd., Anjo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 8/00 (2006.01); C23C 8/36 (2006.01); C23C 8/22 (2006.01); C22C 38/22 (2006.01); C22C 38/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of heat-treating a steel member including carburizing a steel member in a carburizing gas under a reduced pressure. The steel member is then cooled in a cooling gas having a pressure lower than atmospheric pressure. A desired portion of the cooled steel member is then heated using high-density energy. The steel member is then quenched.