Patents by Inventor Xiaoyong Le

Xiaoyong Le has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240144965
    Abstract: The present disclosure generally relates to spin-orbit torque (SOT) devices comprising a bismuth antimony (BiSb) layer. The SOT devices further comprises a first shield, a BiSb layer disposed over the first shield (S1), a free layer (FL) disposed over the BiSb layer, and a second shield (S2) disposed over the FL. The S1, the FL, and the S2 are disposed at a media facing surface (MFS). The BiSb layer is recessed from the MFS a first distance of about 5 nm to about 20 nm. The FL has a length greater than the first distance. A notch and/or an insulation layer is disposed adjacent to the BiSb layer at the MFS. Current may be configured to flow vertically through the S2 to the FL, and horizontally from the FL to the BiSb layer. Current may be configured to flow vertically through the S2 to the S1.
    Type: Application
    Filed: July 31, 2023
    Publication date: May 2, 2024
    Applicant: Western Digital Technologies, Inc.
    Inventors: Quang LE, Rohan Babu NAGABHIRAVA, Xiaoyong LIU, Brian R. YORK, Cherngye HWANG, Son T. LE, Randy G. SIMMONS, Kuok San HO, Hisashi TAKANO
  • Publication number: 20240144960
    Abstract: The present disclosure generally relates to a two dimensional magnetic recording (TDMR) spin-orbit torque (SOT) read head comprising bismuth antimony (BiSb) layers. The read head comprises a lower reader comprising a first SOT stack and an upper reader comprising a second SOT stack. The first SOT stack and the second SOT stack each individually comprise a BiSb layer recessed from a media facing surface (MFS) and a free layer exposed at the MFS. The BiSb layers of each SOT stack are recessed from the MFS a distance of about 5 nm to about 20 nm, the distance being less than a length of the free layers. In one embodiment, the lower reader and the upper reader share a current path. In another embodiment, the lower reader and the upper reader have separate current paths.
    Type: Application
    Filed: July 26, 2023
    Publication date: May 2, 2024
    Applicant: Western Digital Technologies, Inc.
    Inventors: Quang LE, Rohan Babu NAGABHIRAVA, Xiaoyong LIU, Brian R. YORK, Son T. LE, Cherngye HWANG, Kuok San HO, Hisashi TAKANO
  • Patent number: 10647694
    Abstract: A diphenylaminopyrimidine and triazine compound of Formula I, or a pharmaceutically acceptable salt, stereoisomer, hydrate or solvate thereof is disclosed In formula I, A is C or N; X and Y are independently selected from hydrogen, halo, cyano, trifluoromethyl, alkoxy, alkyl, aryl, alkenyl, alkynyl and nitro; or X and Y, together with the atoms to which they are attached, form a phenyl or an heteroaromatic ring; R1 is R2 is CD3 or CD2CD3; R3 is R4 is hydrogen, methyl, trifluoromethyl, cyano or halo; R5 is hydrogen, alkyl, substituted and unsubstituted phenyl, allyl or propargyl; R6 and R7 are independently selected from hydrogen, alkyl, substituted and unsubstituted phenyl, allyl and propargyl; or R6 and R7, together with the nitrogen atom to which they are attached, form a substituted or unsubstituted heterocycloalkyl group. The compound has pharmacodynamic and pharmacokinetic properties and ALK kinase inhibitory activity.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: May 12, 2020
    Assignee: ARROMAX PHARMATECH CO., LTD.
    Inventors: Jian Hong, Guobin Liu, Jingbing Wang, Xiaoyong Le
  • Publication number: 20190256493
    Abstract: A diphenylaminopyrimidine and triazine compound of Formula I, or a pharmaceutically acceptable salt, stereoisomer, hydrate or solvate thereof is disclosed In formula I, A is C or N; X and Y are independently selected from hydrogen, halo, cyano, trifluoromethyl, alkoxy, alkyl, aryl, alkenyl, alkynyl and nitro; or X and Y, together with the atoms to which they are attached, form a phenyl or an heteroaromatic ring; R1 is R2 is CD3 or CD2CD3; R3 is R4 is hydrogen, methyl, trifluoromethyl, cyano or halo; R5 is hydrogen, alkyl, substituted and unsubstituted phenyl, allyl or propargyl; R6 and R7 are independently selected from hydrogen, alkyl, substituted and unsubstituted phenyl, allyl and propargyl; or R6 and R7, together with the nitrogen atom to which they are attached, form a substituted or unsubstituted heterocycloalkyl group. The compound has pharmacodynamic and pharmacokinetic properties and ALK kinase inhibitory activity.
    Type: Application
    Filed: May 4, 2017
    Publication date: August 22, 2019
    Inventors: Jian HONG, Guobin LIU, Jingbing WANG, Xiaoyong LE
  • Patent number: 10196365
    Abstract: Disclosed are a quinazoline derivative, a preparation method therefor, and a pharmaceutical composition and an application thereof. The present invention provides a compound represented by general formula I, a stereoisomer thereof and a pharmaceutical acceptable salt or a solvate thereof. The quinazoline derivative of the present invention has a unique chemical structure, is characterized by irreversibly inhibiting EGFR tyrosine kinase, has high biological activity, apparently improves the inhibiting effect on the EGFR tyrosine kinase, has quite strong tumor inhibiting effect on tumor cells and a transplantation tumor pathological model of animal tumors, and has good market developing prospects.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: February 5, 2019
    Assignee: ARROMAX PHARMATECH CO., LTD.
    Inventors: Jian Hong, Xin Xu, Xiaoyong Le, Zonghua Zhang
  • Publication number: 20170247339
    Abstract: Disclosed are a quinazoline derivative, a preparation method therefor, and a pharmaceutical composition and an application thereof. The present invention provides a compound represented by general formula I, a stereoisomer thereof and a pharmaceutical acceptable salt or a solvate thereof. The quinazoline derivative of the present invention has a unique chemical structure, is characterized by irreversibly inhibiting EGFR tyrosine kinase, has high biological activity, apparently improves the inhibiting effect on the EGFR tyrosine kinase, has quite strong tumor inhibiting effect on tumor cells and a transplantation tumor pathological model of animal tumors, and has good market developing prospects.
    Type: Application
    Filed: August 15, 2014
    Publication date: August 31, 2017
    Inventors: Jian HONG, Xin XU, Xiaoyong LE, Zonghua ZHANG
  • Patent number: 9249172
    Abstract: Disclosed are pyrazole compounds of general formula (I), wherein R, R1, Rc, Rd, Re, Rf, X, Y, Z, A and B are as defined in the application. These compounds are active as inhibitors of poly(ADP-ribose)polymerase (PARP) and are useful in methods for treating diseases or conditions mediated by PARP, including breast cancer and malignant melanoma.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: February 2, 2016
    Assignees: HANDE PHARMA LIMITED, HANDE STARLAKE BIOSCIENXE CO., LTD.
    Inventors: Chenxi Li, Weisheng Shen, Yang Fang, Xiaoyong Le
  • Publication number: 20130142757
    Abstract: Disclosed are compounds of general formula (I), wherein R, R1, Rc, Rd, Re, Rf, X, Y, Z, A and B are as defined in the application.
    Type: Application
    Filed: May 23, 2011
    Publication date: June 6, 2013
    Applicants: Hande Starlake Bioscience Co., Ltd., Hande Pharma Limited
    Inventors: Chenxi LI, Weisheng Shen, Yang Fang, Xiaoyong Le