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:
Jun. 28, 2005

Filed:

Jul. 30, 2002
Applicants:

Koichi Kawamura, Shizuoka-ken, JP;

Miki Takahashi, Shizuoka-ken, JP;

Sumiaki Yamasaki, Shizuoka-ken, JP;

Inventors:

Koichi Kawamura, Shizuoka-ken, JP;

Miki Takahashi, Shizuoka-ken, JP;

Sumiaki Yamasaki, Shizuoka-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F007/11 ;
U.S. Cl.
CPC ...
Abstract

The positive planographic printing plate precursor of the present invention is a precursor comprising (I) a positive recording layer including a water-insoluble and alkali-soluble polymer compound and a light to heat converting agent, on a support having a hydrophilic surface in which a hydrophilic graft polymer chain is present. The precursor may further comprise (II) a lower layer including a water-insoluble and alkali-soluble polymer compound between the recording layer and the support.


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