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:
Jan. 07, 2025
Filed:
Dec. 23, 2021
Fujifilm Corporation, Tokyo, JP;
Kazuaki Enomoto, Shizuoka, JP;
Natsumi Yokokawa, Shizuoka, JP;
Akinori Fujita, Shizuoka, JP;
Akira Sakaguchi, Shizuoka, JP;
Yusuke Namba, Shizuoka, JP;
Ichiro Koyama, Shizuoka, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
An on-machine development type planographic printing plate precursor has a support and an image-recording layer on the support. The image-recording layer contains an initiator, an infrared absorber capable of donating electrons to the initiator, and a color-developing substance precursor. The image-recording layer can form an image by exposure to infrared laser, and in a case where the image-recording layer is exposed to an infrared laser with a wavelength of 830 nm at an energy density of 110 mJ/cm, a brightness change ΔL of the image-recording layer before and after the exposure is 3.0 or more. A method for preparing a planographic printing plate and a planographic printing method employ the on-machine development type planographic printing plate precursor.