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Patent Searching and Data


Title:
INFRARED BLOCKING FILTER, FILTER FOR SOLID-STATE IMAGING ELEMENT, SOLID-STATE IMAGING ELEMENT, AND METHOD FOR PRODUCING FILTER FOR SOLID-STATE IMAGING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2022/004889
Kind Code:
A1
Abstract:
The present invention includes: a cation having a polymethine and a nitrogen-containing heterocycle located at each end of the polymethine; a cyanine dye including tris(pentafluoroethyl)trifluorophosphate anions; and a copolymer including a first repeating unit derived from a first monomer that is an acrylic monomer including a cyclic ether group, and a second repeating unit derived from a second monomer that is a monomer including a functional group that reacts with the cyclic ether group.

Inventors:
IWATA REIKO (JP)
HIRAI YURI (JP)
MIYOSHI HANAE (JP)
FURUKAWA SHIGEKI (JP)
Application Number:
PCT/JP2021/025213
Publication Date:
January 06, 2022
Filing Date:
July 02, 2021
Export Citation:
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Assignee:
TOPPAN INC (JP)
International Classes:
C08F20/26; C08K5/34; C08K5/521; C08L33/14; G02B5/22
Domestic Patent References:
WO2017047230A12017-03-23
WO2018221150A12018-12-06
WO2019039159A12019-02-28
Foreign References:
JP2013155353A2013-08-15
Other References:
See also references of EP 4177279A4
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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