Invention Grant
- Patent Title: Near-infrared absorbing composition, near-infrared absorbing film, and image sensor for solid-state imaging element
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Application No.: US17042519Application Date: 2019-05-13
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Publication No.: US11753547B2Publication Date: 2023-09-12
- Inventor: Kenji Hayashi , Yosuke Mizutani , Koji Daifuku , Natsumi Itamoto
- Applicant: Konica Minolta, Inc.
- Applicant Address: JP Tokyo
- Assignee: KONICA MINOLTA, INC.
- Current Assignee: KONICA MINOLTA, INC.
- Current Assignee Address: JP Tokyo
- Agency: LUCAS & MERCANTI, LLP
- Priority: JP 18095839 2018.05.18
- International Application: PCT/JP2019/018943 2019.05.13
- International Announcement: WO2019/221061A 2019.11.21
- Date entered country: 2020-09-28
- Main IPC: C09B57/10
- IPC: C09B57/10 ; C09B67/20 ; G02B5/20
Abstract:
Provided is a near-infrared ray absorbing composition containing at least a near-infrared absorber, a metal compound, and a solvent, wherein the near-infrared absorber contains a metal ion, and the metal compound is a compound having a structure represented by the following Formula (I), Formula (II), or Formula (III),
M(OR1)n Formula (I):
Mn+(O═R2—O−)n Formula (II):
(OR3)n-mMn+(−OCOR4)m, Formula (III):
in the above Formulas (I), (II), and (III), M represents at least one metal element selected from the group consisting of titanium, zirconia, and aluminum; when M represents titanium or zirconia, n=4, m=1, 2, 3, or 4; when M represents aluminum, n=3, m=1, 2, or 3; R1 to R4 each independently represent an alkyl group having 1 to 30 carbon atoms, and R1 to R4 may further have a substituent.
M(OR1)n Formula (I):
Mn+(O═R2—O−)n Formula (II):
(OR3)n-mMn+(−OCOR4)m, Formula (III):
in the above Formulas (I), (II), and (III), M represents at least one metal element selected from the group consisting of titanium, zirconia, and aluminum; when M represents titanium or zirconia, n=4, m=1, 2, 3, or 4; when M represents aluminum, n=3, m=1, 2, or 3; R1 to R4 each independently represent an alkyl group having 1 to 30 carbon atoms, and R1 to R4 may further have a substituent.
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