Title:
近赤外線吸収色素、光学フィルタおよび撮像装置
Document Type and Number:
Japanese Patent JP7310806
Kind Code:
B2
Abstract:
The present invention relates to: a near-infrared absorbing dye which is composed of a compound represented by formula (A1); and a near-infrared absorbing dye which is composed of a compound represented by formula (A2). In formula (A1) and formula (A2), each of R1, R2, R5 and R6 independently represents a hydrogen atom, a halogen atom, a hydroxyl group, or an optionally substituted alkyl group, alkoxy group, aryl group or alaryl group which may contain an unsaturated bond or an oxygen atom between carbon atoms; and each of R3, R4, R7 and R8 independently represents an optionally substituted linear or branched chain alkyl group which may contain an unsaturated bond, an oxygen atom, an alicyclic ring or an aromatic ring between carbon atoms.
Inventors:
Shigeki Hattori
Application Number:
JP2020522147A
Publication Date:
July 19, 2023
Filing Date:
May 23, 2019
Export Citation:
Assignee:
AGC Inc.
International Classes:
C09B57/00; C09K3/00; G02B5/22; G02B5/26; G02B5/28
Domestic Patent References:
| JP2001117201A | ||||
| JP2013076926A | ||||
| JP2009015114A |
Foreign References:
| WO2017104283A1 |
Other References:
MALTESE, V et al.,Electro-optical Properties of Neutral and Radical Ion Thienosquaraines,Chemistry - A European Journal,2016年,Vol. 22,pp. 10179-10186
LIU, W et al.,Sensitive Structural Control of Macrocycle Threading by a Fluorescent Squaraine Dye Flanked by Polym,Organic Letters,2015年,Vol. 17,pp. 5268-5271
SHAW, SK et al.,Non-Covalent Assembly Method that Simultaneously Endows a Liposome Surface with Targeting Ligands, P,Chemistry - A European Journal,2017年,Vol. 23,pp. 12646-12654
LIU, W et al.,Sensitive Structural Control of Macrocycle Threading by a Fluorescent Squaraine Dye Flanked by Polym,Organic Letters,2015年,Vol. 17,pp. 5268-5271
SHAW, SK et al.,Non-Covalent Assembly Method that Simultaneously Endows a Liposome Surface with Targeting Ligands, P,Chemistry - A European Journal,2017年,Vol. 23,pp. 12646-12654
Attorney, Agent or Firm:
Patent Attorney Corporation Eiko Office