Wei X Li

20120321162, Dec 20, 2012

Jun 14, 2012

13/517633

Chunlei Liu - Chapel Hill NC, US
Wei Li - Durham NC, US
Bing Wu - Beijing, CN

G06K 9/36

382131

Systems and methods for imaging and quantifying tissue magnetism with magnetic resonance imaging (MRI) are disclosed. According to an aspect, a method for MRI includes using an MRI system to acquire multiple image echoes of an object. The method also includes combining the image echoes. Further, the method includes generating an image of the object based on the combined image echoes for depicting a characteristic of the object.

51560798, Oct 20, 1992

Jun 5, 1990

7/533482

Aly El-Shiekh - Raleigh NC
Wei Li - Raleigh NC
Mohamed Hammad - Raleigh NC

North Carolina State University - Raleigh NC

D04C 318

87 57

A yarn carrier apparatus particularly suited for use in braiding machinery or the like due to its capability of continuous yarn feeding and retraction of long lengths of yarn. The yarn carrier apparatus comprises a yarn supply spool which is rotatably mounted within the housing, a spring motor also mounted within the housing and operatively connected to the yarn supply spool through a mechanical transmission assembly which is adapted to multiply rotational movement between the first element of the gear assembly operatively connected to the spring motor and the final element of the gear assembly operatively connected to the yarn supply spool. The spring motor is adapted to tension the yarn during both feeding and retraction thereof, and it is further adapted to periodically rotatably slip within the housing and partially unwind so as to allow for continuous withdrawal of a long length of yarn without the spring motor becoming fully wound and preventing further yarn retraction.

20200216614, Jul 9, 2020

Sep 11, 2018

16/648183

- Wilmington DE, US
John Donald Summers - Chapel Hill NC, US
Nora Sabina Radu - Landenberg PA, US
Chai Kit Ngai - Wilmington DE, US
Wayne Atkinson - New Castle DE, US
Wei Li - Middletown DE, US
Jonathan Timothy Maeyer - Haddonfield NJ, US

C08G 73/10
C08J 5/18
G02B 1/04
G02F 1/1333

Disclosed is a polyimide film generated from a solution containing a polyamic acid in a high-boiling, aprotic solvent; wherein the polyamic acid comprises one or more tetracarboxylic acid components and one or more diamine components; and wherein at least one of the tetracarboxylic acid components is a quadrivalent organic group derived from a bent dianhydride or an aromatic dianhydride comprising —O—, —CO—, —NHCO—, —S—, —SO—, —CO—O—, or —CR— links, or a direct chemical bond between aromatic rings; and wherein at least one of the diamine components is a divalent organic group derived from a bent diamine or an aromatic diamine comprising the same links, or a direct chemical bond between aromatic rings; and wherein R is the same or different at each occurrence and is selected from the group consisting of H, F, alkyl, and fluoroalkyl.

20200172675, Jun 4, 2020

Aug 8, 2018

16/637897

- Wilmington DE, US
John Donald Summers - Chapel Hill NC, US
Brian C. Auman - Avondale PA, US
Wayne Atkinson - New Castle DE, US
Wei Li - Middletown DE, US
Chai Kit Ngai - Wilmington DE, US

C08G 73/10
C08J 5/18
H01L 27/32
H01L 51/00
H01L 51/52

Disclosed is a solution containing a polyamic acid in a high-boiling, aprotic solvent; wherein the polyamic acid contains two or more tetracarboxylic acid components and one or more diamine components; and wherein at least one of the tetracarboxylic acid components is a quadrivalent organic group derived from an aliphatic dianhydride. Polyimide films made from the solutions are also disclosed, as are their methods of production and uses in electronic devices.

20160252597, Sep 1, 2016

Mar 9, 2016

15/065803

Chunlei Liu - Chapel Hill NC, US
Wei Li - Durham NC, US
Bing Wu - Beijing, CN

G01R 33/561
G01R 33/56
G01R 33/48
G01R 33/565

Systems and methods for imaging and quantifying tissue magnetism with magnetic resonance imaging (MRI) are disclosed. According to an aspect, a method for MRI includes using an MRI system to acquire multiple image echoes of an object. The method also includes combining the image echoes. Further, the method includes generating an image of the object based on the combined image echoes for depicting a characteristic of the object.