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.:

US 7558521 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 07, 2009

Filed:

Apr. 02, 2007
Applicants:

Hideaki Ohhara, Kanagawa, JP;

Motofumi Baba, Kanagawa, JP;

Yasutaka Naito, Kanagawa, JP;

Yasuhiro Uehara, Kanagawa, JP;

Inventors:

Hideaki Ohhara, Kanagawa, JP;

Motofumi Baba, Kanagawa, JP;

Yasutaka Naito, Kanagawa, JP;

Yasuhiro Uehara, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

A roller includes: a columnar metal core; and a layer that covers, to a predetermined thickness, an outer circumferential surface of the metal core, the layer including bubbles inside, and being provided with one or more cuts penetrating the bubbles through each of end surfaces of the layer.


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