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. 14, 1998
Filed:
May. 17, 1996
Applicant:
Inventors:
Yoshihiro Tonomoto, Kawasaki, JP;
Kenji Fuke, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
399116 ; 399159 ; 430 64 ;
Abstract
To provide a photo-sensitive drum having excellent properties which are not at all inferior to those of the prior art photo-sensitive drums assembled with a larger number of parts, capable of being easily manufactured at a reduced production cost. A blank tube 23d consisting of a cylinder section 23a, a center axis section 23b arranged within the cylinder section 23a concentrically therewith and a plurality of rib sections 23c for rigidly connecting the cylinder section 23a with the center axis section 23b is integrally formed through extrusion or draw-forming.