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AssigneeKabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo
InventorsAkira Shinpo, Yoshimi Takahashi, Kentaro Yano, Yasushi Aizawa
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An objective of this invention is to extend the range of choosing organic dye compounds as light-absorbing agent in a variety of fields of, for example, information storage, information display, solar energy generation, electric machinery apparatus, electric communicating apparatus, optical apparatus, cloth, building/bedding/decorating product, sanitary and health goods, and agricultural material by providing an organic dye compound which is superior in light-absorbing property, light resistance, and solubility in the near-infrared region: The objective is attainable by providing a cyanine dye that bears within the same molecule a plurality of cyanine dye skeletons bound to a divalent group(s) and an organometallic complex as counter ion, as well as substantially absorbing a light with a wavelength longer than 700 nm.
A cyanine dye which bears within the same molecule a plurality of cyanine dye skeletons coupled each other by a divalent group and also as counter ion an anion of organometallic complex, as well as substantially absorbing light at a wavelength longer than 700 nm.
Dependencies are inferred from the claim text.