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:
Feb. 16, 2010
Filed:
Dec. 24, 2004
Tomoya Terauchi, Sodegaura, JP;
Yuji Inatomi, Sodegaura, JP;
Toshinori Matsuda, Sodegaura, JP;
Yuko Kobayashi, Tokyo, JP;
Akihiro Koide, Sodegaura, JP;
Tomoya Terauchi, Sodegaura, JP;
Yuji Inatomi, Sodegaura, JP;
Toshinori Matsuda, Sodegaura, JP;
Yuko Kobayashi, Tokyo, JP;
Akihiro Koide, Sodegaura, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
An object of the present invention is to provide a lithographic printing plate with a hydrophilic layer mainly made from resins which has a photosensitivity to the light in near infrared region, on which images can be printed directly with laser beam, requiring no development and wiping off operation, and immediately recovering from ink stains without any difficulties when an ink attaches to non-image areas on printing, and a photosensitive resin composition applied to the printing plate. A lithographic printing original plate having a photosensitive layer formed on a support is characterized in that the surface of the photosensitive layer has a phase-separation structure, and the recessed parts are formed on the surface of a photosensitive layer by the dissolution of one component of photosensitive layer constituting the phase-separation and the surface of the photosensitive layer is changed to have affinity for ink by irradiation with light.