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. 27, 2005
Filed:
Mar. 21, 2003
Yasuharu Suda, Hiroshima-ken, JP;
Hideaki Sakurai, Hiroshima-ken, JP;
Toyoaki Yasui, Hiroshima-ken, JP;
Toyoshi Ohto, Hiroshima-ken, JP;
Yasuharu Suda, Hiroshima-ken, JP;
Hideaki Sakurai, Hiroshima-ken, JP;
Toyoaki Yasui, Hiroshima-ken, JP;
Toyoshi Ohto, Hiroshima-ken, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A printing press, and an apparatus and a process for regenerating a printing plate can repetitiously reuse the same printing plate and shorten time for decomposition of image areas formed by a hydrophobic organic compound under irradiation with activating light to delete the image areas. A process for regenerating a printing plate including a photosensitive layer, formed on the surface of a substrate, having a photocatalyst exhibits hydrophilicity responsive to activating light having energy higher than the photocatalyst's band-gap energy, and one or more hydrophobic image areas, formed on the surface of the photosensitive layer and operable to hold ink, comprises the steps of: removing ink remaining on the printing plate; hydrophilizing the surface of the printing plate by irradiating with the activating light and by heating the printing plate to delete the hydrophobic image areas; and applying an organic compound onto the printing plate.