Yadong Cao

US Patent:

20210142926, May 13, 2021

Filed:

Dec 23, 2020

Appl. No.:

17/132327

Inventors:

- Hayward CA, US
Alexander Seung-il Hong - San Mateo CA, US
Xiqiang Yang - Hayward CA, US
Yadong Cao - San Jose CA, US
Ajay Virkar - San Mateo CA, US

International Classification:

H01B 1/02
B22F 1/00
B22F 1/02
B22F 9/24
C22B 3/44
C22B 3/00

Abstract:

Desirable methods for larger scale silver nanoplate synthesis are described along with methods for applying a noble metal coating onto the silver nanoplates to form coated silver nanoplates with a desirable absorption spectrum. The silver nanoplates are suitable for use in coatings for altering the hue of a transparent film. The hue adjustment can be particularly desirable for transparent conductive films.

US Patent:

20200245457, Jul 30, 2020

Filed:

Jan 28, 2019

Appl. No.:

16/259302

Inventors:

- Hayward CA, US
Byunghwan Kang - Yongin-si, KR
Jackie Chen - San Leandro CA, US
Yadong Cao - San Jose CA, US
Vicki Luo - San Francisco CA, US
Arthur Yung-Chi Cheng - Newark CA, US
Andrew Hyeongjoo Moon - Dublin CA, US
Xiqiang Yang - Hayward CA, US
Ajay Virkar - San Mateo CA, US

International Classification:

H05K 1/03
G06F 3/044
G06F 3/041
H05K 1/11
H05K 1/02

Abstract:

Structures are described having thin flexible polymer substrates with electrically conductive films on each opposing surface while having high optical transmittance and good optical properties. The structures can have total thicknesses of no more than about 30 microns and good flexibility. Processing approaches are described that allow for the coating of the very thin structures by providing support through the coating process. The structures are demonstrated to have good durability under conditions designed to test accelerated wear for touch sensor use.

US Patent:

20190364665, Nov 28, 2019

Filed:

May 21, 2019

Appl. No.:

16/417692

Inventors:

- Hayward CA, US
Yadong Cao - San Jose CA, US
Ajay Virkar - San Mateo CA, US

International Classification:

H05K 3/06
H05K 1/02
C09K 13/04

Abstract:

A method is described for method for patterning a metal layer interfaced with a transparent conductive film, in which the method comprises contacting a structure through a patterned mask with an etching solution comprising Feions, wherein the structure comprises the metal layer comprising copper, nickel, aluminum or alloys thereof covering at least partially a transparent conductive film with conductive elements comprising silver, to expose a portion of the transparent conductive film. Etching solutions and the etched structures are also described.

US Patent:

20190066863, Feb 28, 2019

Filed:

Oct 30, 2018

Appl. No.:

16/174433

Inventors:

- Hayward CA, US
Alexander Seung-il Hong - Hayward CA, US
Xiqiang Yang - Hayward CA, US
Yadong Cao - San Jose CA, US
Ajay Virkar - San Mateo CA, US

International Classification:

H01B 1/02
C22B 3/00
C22B 3/44
B22F 9/24
B22F 1/00
B22F 1/02

Abstract:

Desirable methods for larger scale silver nanoplate synthesis are described along with methods for applying a noble metal coating onto the silver nanoplates to form coated silver nanoplates with a desirable absorption spectrum. The silver nanoplates are suitable for use in coatings for altering the hue of a transparent film. The hue adjustment can be particularly desirable for transparent conductive films.

US Patent:

20170169911, Jun 15, 2017

Filed:

Dec 9, 2015

Appl. No.:

14/963974

Inventors:

- Hayward CA, US
Alexander Seung-il Hong - Hayward CA, US
Xiqiang Yang - Hayward CA, US
Yadong Cao - San Jose CA, US
Ajay Virkar - San Mateo CA, US

International Classification:

H01B 1/02
C22B 3/00

Abstract:

Desirable methods for larger scale silver nanoplate synthesis are described along with methods for applying a noble metal coating onto the silver nanoplates to form coated silver nanoplates with a desirable absorption spectrum. The silver nanoplates are suitable for use in coatings for altering the hue of a transparent film. The hue adjustment can be particularly desirable for transparent conductive films.

US Patent:

20170067166, Mar 9, 2017

Filed:

Nov 17, 2016

Appl. No.:

15/354733

Inventors:

- Hayward CA, US
Xiqiang Yang - Hayward CA, US
Alexander Seung-il Hong - Hayward CA, US
Melanie Mariko Inouye - Fremont CA, US
Yadong Cao - San Jose CA, US
Ajay Virkar - San Mateo CA, US

International Classification:

C23C 18/44
H01B 1/22
C09D 11/52
H05K 1/02
C23C 18/16
B32B 15/01
H01B 13/30
H05K 1/09

Abstract:

Metal nanowires with uniform noble metal coatings are described. Two methods, galvanic exchange and direct deposition, are disclosed for the successful formation of the uniform noble metal coatings. Both the galvanic exchange reaction and the direct deposition method benefit from the inclusion of appropriately strong binding ligands to control or mediate the coating process to provide for the formation of a uniform coating. The noble metal coated nanowires are effective for the production of stable transparent conductive films, which may comprise a fused metal nanostructured network.

US Patent:

20160293288, Oct 6, 2016

Filed:

Aug 11, 2015

Appl. No.:

14/823001

Inventors:

- Hayward CA, US
Xiqiang Yang - Hayward CA, US
Alexander Seung-il Hong - Hayward CA, US
Melanie Mariko Inouye - Fremont CA, US
Yadong Cao - San Jose CA, US
Ajay Virkar - San Mateo CA, US

International Classification:

H01B 1/22
C23C 18/16
C23C 18/42

Abstract:

Metal nanowires with uniform noble metal coatings are described. Two methods, galvanic exchange and direct deposition, are disclosed for the successful formation of the uniform noble metal coatings. Both the galvanic exchange reaction and the direct deposition method benefit from the inclusion of appropriately strong binding ligands to control or mediate the coating process to provide for the formation of a uniform coating. The noble metal coated nanowires are effective for the production of stable transparent conductive films, which may comprise a fused metal nanostructured network.

US Patent:

20160108256, Apr 21, 2016

Filed:

Feb 20, 2015

Appl. No.:

14/627400

Inventors:

- Hayward CA, US
Yadong Cao - San Jose CA, US
Yongxing Hu - Fremont CA, US
Hua Gu - Dublin CA, US
Ajay Virkar - San Francisco CA, US

International Classification:

C09D 5/24
H01B 5/14
G06F 1/16
G02B 5/22
G06F 3/044
G06F 3/045

Abstract:

Nanoscale colorants are introduced to adjust the hue of transparent conductive films, such as to provide a whiter film. The transparent conductive films can have sparse metal conductive layers, which can be formed using silver nanowires. Color of the film can be evaluated using standard color parameters. In particular, values of color parameter b* can be reduced with the nanoscale colorants without unacceptably changing other parameters, such as haze, a* and transparency.