Patents by Inventor Xin Xia

Xin Xia 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).

  • Patent number: 11217817
    Abstract: A rechargeable lithium ion battery including: a positive electrode including coated particles, wherein each particle includes a core and a coating disposed thereon, wherein the core consists of Li, M, and O, and the coating includes Li, M, O, and AI2O3; wherein: M is (Niz(Ni1/2Mn1/2)yCox)1?kAk; 0.15?z?0.50; 0.17?x?0.30; 0.35?y?0.75; 0<k<0.1; x+y+z=1; and A includes Al and optionally at least one additional metal dopant selected from Mg, Zr, W, Ti, Cr, V, Nb, B, and Ca, and combinations thereof; and wherein the Li and M are present in the core in a molar ratio of Li to M of at least 0.95 and no greater than 1.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: January 4, 2022
    Assignee: Umicore
    Inventors: Jeffrey R. Dahn, Rajalakshmi Senthil Arumugam, Jens Paulsen, Xin Xia, Jing Zhang
  • Publication number: 20210401807
    Abstract: According to the invention, there is provided a pharmaceutical composition suitable for administration to the lung, which composition comprises a plurality of amorphous nanoporous silica particles, in which N-butyloxycarbonyl-3-(4-imidazol-1-yl-methylphenyl)-5-iso-butylthiophene-2-sulfonamide or a pharmaceutically-acceptable salt thereof is loaded into the pores of said silica particles, and wherein the silica particles have: (a) a mass median aerodynamic diameter that is between about 0.1 ?m and about 10 ?m; and (b) a geometric standard deviation that is less than about 4. Such compositions find particular utility in the treatment of an interstitial lung diseases, such as idiopathic pulmonary fibrosis and sarcoidosis, which diseases may be treated with such compositions for example by way of pulmonary administration.
    Type: Application
    Filed: November 6, 2019
    Publication date: December 30, 2021
    Inventors: Carl-Johan DALSGAARD, Adam FEILER, Chunfang ZHOU, Paulina PASZKIEWICZ, Xin XIA
  • Publication number: 20210399287
    Abstract: A lithium metal oxide powder for a cathode material in a rechargeable battery comprises a core and a surface layer. The surface layer is delimited by an outer and an inner interface. The inner interface is in contact with the core. The cathode material has a layered crystal structure comprising the elements Li, M, and oxygen. M has the formula M=(Niz(Ni1/2 Mn1/2)y Cox)1-k Ak, with 0.15?x?0.30, 0.20?z?0.55, x+y+z=1 and 0<k?0.1. The Li content is stoichiometrically controlled with a molar ratio 0.95?Li:M?1.10. A is at least one dopant and comprises Al. The core at the inner interface has an Al content of 0.3-3 mol %. The surface layer comprises an intimate mixture of Ni, Co, Mn, LiF and Al2O3 determined by XPS. The surface layer has a Mn content that decreases from the Mn content at the inner interface to less than 50% of the Mn content at the outer interface.
    Type: Application
    Filed: April 16, 2021
    Publication date: December 23, 2021
    Inventors: Xin Xia, Jens Paulsen, JiHye Kim, Song-Yi Han
  • Publication number: 20210328632
    Abstract: This application discloses a precoding method and apparatus, and an information transmission method and apparatus, and relates to the field of communications technologies, to help improve overall performance of a plurality of data streams corresponding to a same codeword. The precoding method includes: decomposing a channel matrix into a product of a matrix Q, a matrix R, and a matrix PH, where the matrix PH is a conjugate transpose matrix of a matrix P, both the matrix Q and the matrix P are unitary matrices, and the matrix R is an upper triangular matrix; and precoding to-be-sent data based on the matrix P.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 21, 2021
    Inventors: Xin Xia, Zhenbing Zhang, Yun Liu, Lu Guan
  • Publication number: 20210236425
    Abstract: According to the invention, there is provided a pharmaceutical composition suitable for administration to the lung, which composition comprises a plurality of amorphous nanoporous silica particles, in which one or more immunomodulatory imide drug is loaded into the pores of said particles, and wherein the silica particles have: (a) a mass median aerodynamic diameter that is between about 0.1 ?m and about 10 ?m; and (b) a geometric standard deviation that is less than about 4, for use in the treatment of an interstitial lung disease by pulmonary administration. Preferred immunomodulatory imide drugs include thalidomide. Interstitial lung diseases that may be mentioned include idiopathic pulmonary fibrosis and sarcoidosis.
    Type: Application
    Filed: May 3, 2019
    Publication date: August 5, 2021
    Inventors: Carl-Johan DALSGAARD, Adam FEILER, Chunfang ZHOU, Paulina PASZKIEWICZ, Xin XIA
  • Patent number: 11011747
    Abstract: A lithium metal oxide powder for a cathode material in a rechargeable battery, consisting of a core and a surface layer, the surface layer being delimited by an outer and an inner interface, the inner interface being in contact with the core, the core having a layered crystal structure comprising the elements Li, M and oxygen, wherein M has the formula M=(Niz (Ni1/2 Mn1/2)y Cox)1-k Ak, with 0.15?x?0.30, 0.20?z?0.55, x+y+z=1 and 0<k?0.1, wherein the Li content is stoichiometrically controlled with a molar ratio 0.95?Li:M?1.10; wherein A is at least one dopant and comprises Al; wherein the core has an Al content of 0.3-3 mol % and a F content of less than 0.05 mol %; and wherein the surface layer has an Al content that increases continuously from the Al content of the core at the inner interface to at least 10 mol % at the outer interface, and a F content that increases continuously from less than 0.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: May 18, 2021
    Assignees: Umicore, Umicore Korea Ltd.
    Inventors: Xin Xia, Jens Paulsen, JiHye Kim, Song-Yi Han
  • Patent number: 10854874
    Abstract: This invention discloses a lithium metal oxide powder for a cathode material in a rechargeable battery, consisting of a core and a surface layer, the core having a layered crystal structure comprising the elements Li, M and oxygen, wherein M has the formula M=(Niz(Ni1/2Mn1/2)yCox)1-kAk, with 0.15?x?0.30, 0.20?z?0.55, x+y+z=1 and 0?k?0.1, wherein A is a dopant, wherein the Li content is stoichiometrically controlled with a molar ratio 0.95?Li:M?1.10; and wherein the surface layer comprises the elements Li, M? and oxygen, wherein M? has the formula M?=(Niz?(Ni1/2Mn1/2)y?Cox?)1-k?Ak?, with x?+y?+z?=1 and 0?k??0.1, and wherein y?/(y?+2z?)?1.1*[y/(y+2z)]. The surface layer may also comprise at least 3 mol % Al, the Al content in the surface layer 10 being determined by XPS.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: December 1, 2020
    Assignees: Umicore, Umicore Korea Ltd.
    Inventors: Xin Xia, Jens Paulsen, Shinichi Kumakura, Song-Yi Han
  • Publication number: 20200335824
    Abstract: A lithium secondary cell having an operating voltage ?4.35V, comprising a cathode comprising a doped LiCoO2 active material, an anode comprising graphite, and an electrolyte comprising a carbonate-based solvent, a lithium salt and both a succinonitrile (SN) and a lithium bis(oxalato)borate (LiBOB) additive wherein during the discharge at 45° C. from a state of charge (SOC) of 100% at 4.5V to a SOC of 0 at 3V at a C/10 rate the difference of the SOC at 4.42V and 4.35V is at least 7% but less than 14%, and wherein the active material is doped by at least 0.5 mole % of either one or more of Mn, Mg and Ti.
    Type: Application
    Filed: June 30, 2020
    Publication date: October 22, 2020
    Inventors: Xin XIA, Maxime BLANGERO, Jing ZHANG, Wenlong YANG, Jens PAULSEN
  • Patent number: 10804566
    Abstract: A lithium secondary cell having an operating voltage ?4.35 sV, comprising a cathode comprising a doped L1CoO2 active material, an anode comprising graphite, and an electrolyte comprising a carbonate-based solvent, a lithium salt and both a succinonitrile (SN) and a lithium bis(oxalato)borate (LiBOB) additive wherein during the discharge at 45° C. from a state of charge (SOC) of 100% at 4.5V to a SOC of 0 at 3V at a C/10 rate the difference of the SOC at 4.42V and 4.35V is at least 7% but less than 14%, and wherein the active material is doped by at least 0.5 mole % of either one or more of Mn, Mg and Ti.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: October 13, 2020
    Assignees: Umicore, Umicore Korea Ltd.
    Inventors: Xin Xia, Maxime Blangero, Jing Zhang, Wenlong Yang, Jens Paulsen
  • Patent number: 10790510
    Abstract: A rechargeable lithium ion battery comprising a positive electrode, a negative electrode and an electrolyte, the positive electrode comprising a lithium nickel manganese cobalt oxide-based powder with particles comprising a core and a surface layer, the core having a layered crystal structure comprising the elements Li, M and oxygen, wherein M has the formula M=(Niz(Ni1/2Mn1/2)yCox)1-kAk, with 0.13?x?0.30, 0.20?z?0.55, x+y+z=1 and 0<k?0.1, wherein A is at least one dopant and comprises Al, the lithium nickel manganese cobalt oxide-based powder having a molar ratio 0.95?Li:M?0.10, wherein the surface layer consists of a mixture of elements of the core Li, M and O, and alumina, and wherein the electrolyte comprises the additive lithium difluorophosphate.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: September 29, 2020
    Assignees: Umicore, Umicore Korea Ltd.
    Inventors: Jeong-Rae Kim, Gyeong-Ok Kim, Xin Xia, Jing Zhang
  • Publication number: 20200168908
    Abstract: A rechargeable lithium ion battery comprising a positive electrode, a negative electrode and an electrolyte, the positive electrode comprising a lithium nickel manganese cobalt oxide-based powder with particles comprising a core and a surface layer, the core having a layered crystal structure comprising the elements Li, M and oxygen, wherein M has the formula M=(Niz(Ni1/2Mn1/2)yCox)1-kAk, with 0.13?x?0.30, 0.20?z?0.55, x+y+z=1 and 0<k?0.1, wherein A is at least one dopant and comprises Al, the lithium nickel manganese cobalt oxide-based powder having a molar ratio 0.95?Li:M?0.10, wherein the surface layer consists of a mixture of elements of the core Li, M and O, and alumina, and wherein the electrolyte comprises the additive lithium difluorophosphate.
    Type: Application
    Filed: March 9, 2017
    Publication date: May 28, 2020
    Inventors: Jeong-Rae Kim, Gyeong-Ok Kim, Xin Xia, Jing Zhang
  • Publication number: 20200099468
    Abstract: Embodiments of the present disclosure disclose a data transmission method and a communications device. The method in the embodiments of the present disclosure includes: obtaining, by a first communications device, a transmission mode instruction, where the transmission mode instruction is used to instruct to use a frequency-domain repetition mode to transmit data, and the frequency-domain repetition mode means that same data is repeatedly transmitted on different frequency-domain resources; determining, by the first communications device, the frequency-domain repetition mode based on the transmission mode instruction; and performing, by the first communications device, data transmission with a second communications device in the frequency-domain repetition mode.
    Type: Application
    Filed: November 26, 2019
    Publication date: March 26, 2020
    Inventors: Xin XIA, Yun LIU, Weimin CHEN, Xiaoyu LUO
  • Patent number: 10601037
    Abstract: The invention provides a dual component lithium-rich layered oxide positive electrode material for a secondary battery, the material consisting of a single-phase lithium metal oxide with space group R-3m and having the general formula Li1+bN1?bO2, wherein 0.155?b?0.25 and N=NixMnyCOzZrcAd, with 0.10?x?0.40, 0.30?y?0.80, 0<z?0.20, 0.005?c?0.03, and 0?d?0.10, and wherein x+y+z+c+d=1, with A being a dopant comprising at least one element, and the material further consisting of a Li2ZrO3 component.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: March 24, 2020
    Assignees: UMICORE, UMICORE KOREA, LTD.
    Inventors: Xin Xia, Song-Yi Han, Ji-Hye Kim, Jens Paulsen
  • Publication number: 20200078307
    Abstract: The present invention relates to a compressed pharmaceutical dosage form comprising one or more active pharmaceutical ingredients at a concentration between 2 and 15% w/w, porous particles, having a diameter between 1 and 100 ?m, at a concentration between 10 and 50% w/w and optionally one or more excipients. The active pharmaceutical ingredient is in admixture with and/or loaded into said particles, whereby a ratio of unloaded versus loaded ingredient is between 100:1 and 1:100. The porosity of the dosage form is more than 5% and less than 45% and the hardness of the dosage form is more than 5 N and less than 30 N using a Schleuniger hardness type tester.
    Type: Application
    Filed: March 11, 2019
    Publication date: March 12, 2020
    Applicant: Nanologica AB
    Inventors: Chunfang Zhou, Xin Xia, Paulina Paszkiewicz, Adam Feiler, Hans Lennernäs, Nerea Arriaga Garcia
  • Publication number: 20200069588
    Abstract: The present invention relates to a process for manufacturing porous silica particles comprising at least one bioactive compound, whereby the particles are adapted for lung, nasal, sublingual and/or pharyngeal delivery of said at least one bioactive compound and have an MMAD between 0.5 and 15 ?m with a GSD less than 2.5. The invention also relates to a pharmaceutical composition comprising said silica particles and a use of the silica particles in the diagnoses, prevention and/or treatment of local and/or systemic disorders, such as disorders of the lung, nose, sublingual and/or pharynx.
    Type: Application
    Filed: May 3, 2018
    Publication date: March 5, 2020
    Applicant: Nanologica AB
    Inventors: Chunfang Zhou, Adam Feiler, Paulina Paszkiewicz, Xin Xia
  • Publication number: 20200005204
    Abstract: Methods, systems, and computer programs are presented for determining the employment type of online-service members and the generation of employment reports. One method includes training a machine learning program (MLP) for categorizing employment type, for title and company, as field or full-time-corporate. The full-time-corporate category is for full-time corporate employees. For each employee title in a first company, the method includes accessing data for members of an online service having the title and employed by the first company, and determining, by the trained MLP, the employment type for the title and the first company based on the accessed data. Further, the method includes operations for providing a user interface for generating an employment report for the first company, the user interface including one or more options for filtering data based on the employment type, and for presenting the employment report on the user interface.
    Type: Application
    Filed: June 29, 2018
    Publication date: January 2, 2020
    Inventors: Hitesh Kumar, Michael Jennings, Xin Xia, David Golland, Daniel Francis, Ted Tomlinson
  • Publication number: 20190207246
    Abstract: A rechargeable lithium ion battery including: a positive electrode including coated particles, wherein each particle includes a core and a coating disposed thereon, wherein the core consists of Li, M, and O, and the coating includes Li, M, O, and Al2O3; wherein: M is (Niz(Ni1/2Mn1/2)yCox)1?kAk; 0.15?z?0.50; 0.17?x?0.30; 0.35?y?0.75; 0<k<0.1; x+y+z=1; and A includes Al and optionally at least one additional metal dopant selected from Mg, Zr, W, Ti, Cr, V, Nb, B, and Ca, and combinations thereof; and wherein the Li and M are present in the core in a molar ratio of Li to M of at least 0.95 and no greater than 1.
    Type: Application
    Filed: May 5, 2017
    Publication date: July 4, 2019
    Inventors: Jeffrey R. Dahn, Rajalakshmi Senthil Arumugam, Jens Paulsen, Xin Xia, Jing Zhang
  • Patent number: 10333135
    Abstract: A lithium transition metal oxide powder for a positive electrode material in a solid-state lithium ion battery, the powder consisting of particles having a core and a surface layer consisting of an inner and an outer layer, wherein the powder has a D50 between 35 and 60 ?m, wherein the core has the general formula LixCoO2 with 0.99<x<1.04 and wherein the inner surface layer comprises LiyNi1?a?bMnaCobO2, with 0<y<1, 0.3<a<0.8 and 0<b<0.3; and wherein the outer surface layer consists of discrete monolithic sub-micron sized particles having the general formula Li1+z(Ni1?m?nMnmCon)1?zO2, with 0?z?0.05, 0<m?0.50 and 0<n?0.70, preferably 0<n?0.30.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: June 25, 2019
    Assignees: UMICORE, UMICORE KOREA LTD.
    Inventors: Jens Paulsen, Xin Xia, Song-Yi Han, Jing Zhang
  • Publication number: 20190102725
    Abstract: Methods, systems, and computer programs are presented for determining employment start dates for members of a social network that have not indicated their employment start date in their profiles to generate employment market reports. One method includes an operation for receiving a request to infer a member start date for a member with an unknown member start date at a company. A distribution over time of known member start dates is determined for members of the social network with a known employment start date at the company, and a time interval is identified defining the boundaries for the member start date. A cohort group is selected from several cohort groups, that include members with known member start dates having a same cohort feature value as the member. A start-date probability distribution is determined based on the distribution of the known member start dates, the cohort group, and the time interval.
    Type: Application
    Filed: October 25, 2017
    Publication date: April 4, 2019
    Inventors: Xin Xia, Michael Jennings, Ted Tomlinson
  • Publication number: 20190051899
    Abstract: The invention provides a dual component lithium-rich layered oxide positive electrode material for a secondary battery, the material consisting of a single-phase lithium metal oxide with space group R-3m and having the general formula Li1+bN1?bO2, wherein 0.155?b?0.25 and N=NixMnyCOzZrcAd, with 0.10?x?0.40, 0.30?y?0.80, 0<z?0.20, 0.005?c?0.03, and 0?d?0.10, and wherein x+y+z+c+d=1, with A being a dopant comprising at least one element, and the material further consisting of a Li2ZrO3 component.
    Type: Application
    Filed: September 22, 2016
    Publication date: February 14, 2019
    Inventors: Xin XIA, Song-Yi HAN, Ji-Hye KIM, Jens PAULSEN