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. 10, 2004
Filed:
Mar. 27, 2003
Hiroshi Sugimura, Habikino, JP;
Koichi Toriyama, Yao, JP;
Mikio Kakui, Ikoma-gun, JP;
Rikiya Matsuo, Nara, JP;
Hisayuki Utsumi, Yamatokorlyama, JP;
Masanori Matsumoto, Kashihara, JP;
Masayuki Sakamoto, Nabari, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In the present invention, a filler element formed of a viscoelastic material with a compressive residual strain of 10% or less and a 25% compressive load of 1 kg/cm , having a specific shape, is mounted in a drum-shaped electrophotographic photosensitive body (photosensitive drum) . The filler element has a sufficient restoring force when deformed, so that it can be fixed to position without an adhesive. Also, the filler element is not moved by vibration or shock during repeated use, and good anti-vibration effect can be maintained.