Ink composition, product, liquid resin composition, and produced matter

US12565591B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12565591-B2
Application numberUS-202117759483-A
CountryUS
Kind codeB2
Filing dateJan 22, 2021
Priority dateJan 27, 2020
Publication dateMar 3, 2026
Grant dateMar 3, 2026

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

An ink composition according to an embodiment of the present invention, comprising: a volatile solvent; and dispersed in the volatile solvent, a plurality of semiconductor nanoparticles each coordinated to a plurality of organic ligands, wherein a ratio by mass of the semiconductor nanoparticles to the volatile solvent is greater than 1:1. A product according to an embodiment of the present invention comprising: a solid substrate; and arranged on the solid substrate, a dried residue of an ink composition, the dried residue comprising a plurality of semiconductor nanoparticles arranged without an intervening polymer matrix, wherein the a plurality of semiconductor nanoparticles each coordinated to a plurality of organic ligands.

First claim

Opening claim text (preview).

The invention claimed is: 1 . An ink composition, comprising: a volatile solvent; and dispersed in the volatile solvent, a plurality of semiconductor nanoparticles each coordinated to a plurality of organic ligands, wherein a ratio by mass of the semiconductor nanoparticles to the volatile solvent is greater than 1:1, and wherein the volatile solvent includes a solvent which is a monocyclic terpenoid. 2 . The ink composition according to claim 1 , wherein the solvent which is the monocyclic terpenoid is an alcohol. 3 . The ink composition according to claim 1 , wherein the volatile solvent includes one or more of dihydroterpineol, terpineol, and dihydroterpineol acetate. 4 . The ink composition according to claim 1 , wherein the plurality of organic ligands includes an aliphatic thiol, carboxylic acid, or amine. 5 . The ink composition according to claim 1 , wherein the plurality of organic ligands includes dodecanethiol. 6 . The ink composition according claim 1 , wherein the ratio by mass of the semiconductor nanoparticles to the volatile solvent is between 2:1 and 4:1. 7 . The ink composition according claim 1 , wherein the ink composition substantially does not include a matrix material or material other than the volatile solvent, the semiconductor nanoparticles, and the organic ligand surrounding the semiconductor nanoparticles.

Assignees

Inventors

Classifications

  • C09K11/70Primary

    containing phosphorus · CPC title

  • characterised by the pigment · CPC title

  • non-luminescent particle coatings or suspension media · CPC title

  • characterised by non-macromolecular additives other than solvents, pigments or dyes · CPC title

  • Pigment inks · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US12565591B2 cover?
An ink composition according to an embodiment of the present invention, comprising: a volatile solvent; and dispersed in the volatile solvent, a plurality of semiconductor nanoparticles each coordinated to a plurality of organic ligands, wherein a ratio by mass of the semiconductor nanoparticles to the volatile solvent is greater than 1:1. A product according to an embodiment of the present inv…
Who is the assignee on this patent?
Shoei Chemical Ind Co
What technology area does this patent fall under?
Primary CPC classification C09K11/70. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Mar 03 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).