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.

Date of Patent:
Mar. 20, 2012

Filed:

Dec. 25, 2008
Applicants:

Masakazu Osada, Shizuoka, JP;

Toru Yamazaki, Shizuoka, JP;

Keiji Akiyama, Shizuoka, JP;

Yoshio Okishi, Shizuoka, JP;

Inventors:

Masakazu Osada, Shizuoka, JP;

Toru Yamazaki, Shizuoka, JP;

Keiji Akiyama, Shizuoka, JP;

Yoshio Okishi, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A metal regeneration method including: a melting furnace cleaning step of melting pure aluminum with an aluminum content of 99.5% by weight or higher in a melting furnace to clean the inside of the melting furnace; and a metal regeneration step of melting waste lithographic printing plates selected from unused lithographic printing plates and used lithographic printing plates, in the melting furnace whose inside has been cleaned by the melting furnace cleaning step, to obtain regenerated metal.


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