Nippon Kayaku Kabushiki Kaisha

Yusuke Tone

Kazuki Niimi

Hidenori Yakushiji

Satoshi Kobayashi

Takashi Yoshimoto

Satoshi Iwata

Taku Iino

Nozomi Onodera

Shunsuke Hori

The present invention includes a fused polycyclic aromatic compound represented by general formula (1), where in formula (1), one among Rand Ris represented by general formula (2) and represents a substituent having three to five ring structures, and the other among Rand Rrepresents a hydrogen atom, where in formula (2), n represents an integer of 0-2, Rrepresents a divalent linking group obtained by removing two hydrogen atoms from benzene or naphthalene, Rrepresents a divalent linking group obtained by removing two hydrogen atoms from an aromatic ring of an aromatic hydrocarbon, and when n is 2, a plurality of R's may be the same as or different from each other, Rrepresents an aromatic hydrocarbon group.

Fused polycyclic aromatic compound

The present invention pertains to a material for a photoelectric conversion element for use in an imaging element, the material containing a compound represented by formula (1) (in formula (1), Rand Rindependently represent a substituted or unsubstituted fused heterocyclic aromatic group). The material can provide a photoelectric conversion element having excellent hole and electron leakage preventing properties, hole and electron transport properties, heat tolerance to processing temperatures, and visible light transparency.

Material for photoelectric conversion element for use in imaging element, and photoelectric conversion element including same

The present invention addresses the problem of providing: a pigment dispersion liquid with which an optical filter layer having the functions of both a color filter and a near-infrared cut filter can be formed by performing a development step once, and with which a thin filter achieved by using a single-layer configuration instead of a conventional two-layer configuration can be fabricated; and a colored resin composition containing the pigment dispersion liquid. The present invention provides a pigment dispersion liquid containing one or more organic color pigments selected from the group consisting of pigment red, pigment green, pigment blue, pigment yellow, and pigment violet, an infrared absorbing dye having a maximum absorption wavelength in a wavelength range of 750-2000 nm, and an oil-soluble organic solvent or an aqueous medium, and a colored resin composition containing the dispersion liquid.

Pigment dispersion liquid containing organic color pigment and infrared absorbing dye, colored resin composition, and optical filter

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Tokyo, Japan

Yusuke Tone