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:
Jun. 25, 2019
Filed:
Aug. 02, 2016
Applicant:
Fuji Xerox Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
FUJI XEROX CO., LTD., Minato-ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21C 1/26 (2006.01); C22F 1/047 (2006.01); B21C 23/18 (2006.01); G03G 5/10 (2006.01);
U.S. Cl.
CPC ...
C22F 1/047 (2013.01); B21C 1/26 (2013.01); B21C 23/186 (2013.01); G03G 5/102 (2013.01);
Abstract
A method for producing a metal cylinder includes preparing a metal slug having a surface adjusted so that the crystal grain diameter at a depth of 10 μm from the surface is smaller than that at a depth of 100 μm from the surface, and the crystal grain diameter at a depth of 10 μm from the surface is 30 μm or more and 120 μm or less; and forming a cylinder by impact pressing of the metal slug having the surface as a bottom.