# US 7,744,782 B2 · Transparent conductor

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- Number: US 7,744,782 B2
- Document ID: US7744782B2
- Status: Granted
- Kind: B2
- Application number: 12/197,465
- Filed: 2008-08-25
- Published: 2009-03-05
- Granted: 2010-06-29
- Earliest claimed: 2007-08-30
- Assignees: TDK Corporation
- Inventors: Kazuhisa Inaba; Noriyuki Yasuda; Hiroshi Chihara
- Web page: https://patentgrep.com/patent/US7744782B2

## CPC

- H01B 1/08: oxides
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})

## Abstract

It is an object of the present invention to provide a transparent conductor exhibiting a small increase in resistance value even when used under high-humidity conditions over long periods of time. A transparent conductor in a preferred embodiment comprises indium tin oxide, an additive component having zinc oxide as a main component thereof, and a resin cured product, the content of the additive component being 0.1 to 50 wt % relative to the total amount of indium tin oxide and the additive component.

## Claims

### Claim 1

A transparent conductor, comprising:
indium tin oxide particles, particles of zinc oxide, doped with gallium, and a resin cured product,
wherein the content of the particles of zinc oxide doped with gallium is 1 to 30 wt % relative to the total amount of the indium tin oxide particles and the particles of zinc oxide doped with gallium.

### Claim 2 (depends on 1)

The transparent conductor according to claim 1, wherein the particles of zinc oxide doped with gallium further comprise insulating particles adhered to surfaces of the particles of zinc oxide doped with gallium, the insulating particles comprising at least one of alumina, silica and a resin.