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:
Dec. 23, 2003
Filed:
Jun. 17, 2002
Applicant:
Inventors:
Akinori Toyoda, Katano, JP;
Noriyuki Tajima, Hirakata, JP;
Michihiro Sima, Osaka, JP;
Yoshihiro Nakayama, Kawachi-gun, JP;
Takumi Kitano, Utsunomiya, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 1/520 ;
U.S. Cl.
CPC ...
G03G 1/520 ;
Abstract
An oil application roller capable of preventing an oil leak when the roller is left in the state where the rotation axis thereof runs vertically and also capable of preventing an oil escape from the roller in a fixing device. The oil application roller ( ) includes a seal ring ( ) at respective end portions of the roller ( ). The seal ring ( ) includes a vent hole ( ) extending from an end face of the roller ( ) to the outside of the seal ring ( ), and the cross-sectional area of the vent hole is not less than 0.01 mm and not more than 1 mm .