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:
May. 22, 2006
Filed:
Jan. 22, 2004
Shigeo Fujita, Osaka, JP;
Nobuaki Sasaki, Kyoto, JP;
Keiki Chichiishi, Kyoto, JP;
Yasuhisa Iwasaki, Nara, JP;
Shigeo Fujita, Osaka, JP;
Nobuaki Sasaki, Kyoto, JP;
Keiki Chichiishi, Kyoto, JP;
Yasuhisa Iwasaki, Nara, JP;
Yamamoto Chemicals, Inc., Osaka, JP;
Abstract
The invention provides near infrared absorbing materials showing high light-to-heat conversion efficiency and high sensitivity to lasers whose emission bands are within the range of 750 nm to 900 nm, original plates for direct printing plate making, and novel compounds which can be applied to such absorbing materials and plates. The compounds are polymethine compounds of the general formula (I) A detailed description of general formula (I) may be found in the specification.wherein Rrepresents an alkoxy group which may be substituted; Rrepresents an alkyl group which may be substituted; Rand Reach represents a lower alkyl group or Rand Rtaken together represent a ring; X represents a hydrogen atom, a halogen atom or a substituted amino group; Y represents an alkoxy group which may be substituted or an alkyl group which may be substituted; Z represents a charge neutralizing ion.