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. 02, 2008
Filed:
Feb. 01, 2006
Applicants:
Norihiko Aze, Ohta-ku, JP;
Kyoichi Ashikawa, Ohta-ku, JP;
Kohji Kamiya, Ohta-ku, JP;
Minoru Matsuo, Ohta-ku, JP;
Takayuki Yoshii, Ohta-ku, JP;
Nozomu Takahata, Ohta-ku, JP;
Inventors:
Norihiko Aze, Ohta-ku, JP;
Kyoichi Ashikawa, Ohta-ku, JP;
Kohji Kamiya, Ohta-ku, JP;
Minoru Matsuo, Ohta-ku, JP;
Takayuki Yoshii, Ohta-ku, JP;
Nozomu Takahata, Ohta-ku, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 3/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a method for evaluating a fixing member to fix a toner having a surface layer, a hardness test is carried out by applying a pressure deformation from the surface side of the fixing member, and when a deformation of the surface layer by the pressure deformation is within an elastic range, the fixing member is regarded as a standard product.