Yan Ming Li

US Patent:

6956770, Oct 18, 2005

Filed:

Sep 17, 2003

Appl. No.:

10/667223

Inventors:

Shahzad Khalid - West Los Angeles CA, US
Yan Li - Milpitas CA, US
Mehrdad Mofidi - Fremont CA, US

Assignee:

SanDisk Corporation - Sunnyvale CA

International Classification:

G11C016/04

US Classification:

36518512, 36518517, 36518522

Abstract:

When programming a contiguous page of memory storage units, every time a memory storage unit has reached its targeted state and is program-inhibited or locked out from further programming, it creates a perturbation on an adjacent memory storage unit still under programming. The present invention provides as part of a programming circuit and method in which an offset to the perturbation is added to the adjacent memory storage unit still under programming. The offset is added as voltage offset to a bit line of a storage unit under programming. The voltage offset is a predetermined function of whether none or one or both of its neighbors are in a mode that creates perturbation, such as in a program inhibit mode. In this way, an error inherent in programming in parallel high-density memory storage units is eliminated or minimized.

US Patent:

7215574, May 8, 2007

Filed:

Oct 13, 2005

Appl. No.:

11/250357

Inventors:

Shahzad Khalid - West Los Angeles CA, US
Yan Li - Milpitas CA, US
Mehrdad Mofidi - Fremont CA, US

Assignee:

Sandisk Corporation - Milpitas CA

International Classification:

G11C 11/34
G11C 16/04

US Classification:

36518512, 36518517

Abstract:

When programming a contiguous page of memory storage units, every time a memory storage unit has reached its targeted state and is program-inhibited or locked out from further programming, it creates a perturbation on an adjacent memory storage unit still under programming. The present invention provides as part of a programming circuit and method in which an offset to the perturbation is added to the adjacent memory storage unit still under programming. The offset is added as voltage offset to a bit line of a storage unit under programming. The voltage offset is a predetermined function of whether none or one or both of its neighbors are in a mode that creates perturbation, such as in a program inhibit mode. In this way, an error inherent in programming in parallel high-density memory storage units is eliminated or minimized.

US Patent:

8426574, Apr 23, 2013

Filed:

May 28, 2010

Appl. No.:

12/790618

Inventors:

David Wang - St. Louis MO, US
Guoyan Zhao - St. Louis MO, US
Stacy Finkbeiner - St. Louis MO, US
Jan Vinje - Decatur GA, US
Yan Li - Tucker GA, US
Suxiang Tong - Duluth GA, US

Assignee:

Washington University - St. Louis MO
The United States of America, as Represented by the Secretary of the Department of Health and Human Services, Centers for Disease Control and Prevention - Washington DC

International Classification:

C07H 21/00
C12Q 1/70
A61K 39/12

US Classification:

536 2372, 435 5, 4242041

Abstract:

Provided herein is a novel human astrovirus, its nucleic acid sequence, as well as methods to detect and diagnose the presence of the astrovirus.

US Patent:

20070282313, Dec 6, 2007

Filed:

Jun 1, 2007

Appl. No.:

11/757195

Inventors:

David Huang - South Pasadena CA, US
Jonathan Song - South Pasadena CA, US
Yan Li - Pasadena CA, US
Maolong Tang - San Gabriel CA, US

Assignee:

University of Southern California - Los Angeles CA

International Classification:

A61B 18/18

US Classification:

606005000

Abstract:

Optical coherence tomography (OCT) is used to map the surface elevation and thickness of the cornea. The OCT maps are used to plan laser procedures for the treatment of an irregular, opacified or weakened cornea, and in the treatment of refractive errors. In the excimer laser phototherapeutic keratectomy (PTK) procedure, the OCT data is used to plan a map of ablation depth needed to restore a smooth optical surface. In the excimer laser photorefractive keratectomy procedure, OCT mapping of epithelial thickness is used to achieve clean laser epithelial removal. In femtosecond laser anterior keratoplasty procedure, OCT data is used to plan the depth of femtosecond laser dissection to remove an anterior layer of the cornea, leaving a smooth recipient bed of uniform thickness to receive a disk of donated corneal tissue. The linkage of an OCT system to a precise laser surgical system enables the performance of new procedures that are safer, less invasive and produce faster visual recovery than conventional surgical procedures.

US Patent:

20210114933, Apr 22, 2021

Filed:

Oct 20, 2020

Appl. No.:

17/075316

Inventors:

- Dublin 2, IE
Huagang ZHANG - Rancho Cucamonga CA, US
Jongmin KEUM - Rancho Cucamonga CA, US
Yongjun CHEN - Rancho Cucamonga CA, US
Yan LI - Rancho Cucamonga CA, US
Weiling PENG - Rancho Cucamonga CA, US
Thinh PHAM - Yucaipa CA, US
Farshad J. MOTAMEDI - Mission Viejo CA, US
Lijun MAO - Rancho Cucamonga CA, US
Thomas MUELLER - Yucaipa CA, US

International Classification:

C04B 28/04
E04C 5/07
C04B 14/06
C04B 14/08
C04B 14/18
C04B 18/24
C04B 22/06

Abstract:

A fiber cement material formulation comprising a cementitious binder, a siliceous material, fiber, alumina trihydrate and a bifunctional low density additive wherein the bifunctional low density additive comprises any one or more of diatomaceous earth, recycled autoclave fiber cement dust or cellulose dust. The fiber cement material formulation optionally further comprises a secondary low density additive which may be perlite. In some embodiments, a fiber cement article manufactured from the fiber cement material formulation comprises a density of approximately 1.1 g/cmor below.

US Patent:

20200306664, Oct 1, 2020

Filed:

Jun 27, 2017

Appl. No.:

16/313666

Inventors:

- Atlanta GA, US
Yan LI - Atlanta GA, US
Maksim M. KVETNY - Decatur GA, US

International Classification:

B01D 9/00
C30B 30/02
C30B 7/12

Abstract:

Disclosed herein are systems and methods for the controlled crystallization of a compound. The controlled crystallization is achieved by applying an electric field across solutions of target compound and precipitant, whereby the electric field controls the rate of mixing.