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. 14, 2012
Filed:
Jun. 09, 2009
Applicants:
Tetsuya Yamada, Shinshiro, JP;
Etsuaki Urano, Okazaki, JP;
Osamu Morita, Toyokawa, JP;
Inventors:
Assignee:
Konica Minolta Business Technologies, Inc., Chiyoda-Ku, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a manufacturing method of a heat equalizing member for a fixing device of the invention, first, an elongated cylindrical pipe is prepared which is made of a metallic material and which has one end sealed while the other end opened. Next, a heat-resistant releasing layer is formed on the outer face of the pipe in close contact therewith. Then, operating fluid is injected into the pipe from an outside through the other end of the pipe, while the other end is sealed by welding.