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:
Oct. 23, 2012
Filed:
May. 21, 2007
Applicant:
Kenji Yoneyama, Tokyo, JP;
Inventor:
Kenji Yoneyama, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An information medium evaluating method includes, in the following order: a recording process that records data onto a recordable information medium to be evaluated; a rubbing process that rubs a processing member against a data recording surface of the information medium; a reading process that reads the data from the information medium; and an evaluating process that evaluates the information medium based on a result of the reading process and evaluation standard data. During the rubbing process, the processing member is rubbed onto only part of a region in a circumferential direction of the information medium.