Patents by Inventor Xing Dong Wang

Xing Dong Wang 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: 10037839
    Abstract: A magnetic hydrotalcite composite which is useful in fields such as wastewater treatment, ultraviolet absorption, electromagnetic wave absorption and acid gas absorption, and a production method thereof. The magnetic hydrotalcite composite comprises an inner layer and an outer layer, in which the inner layer is made of a hydrotalcite compound and the outer layer is made of a ferrite compound.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: July 31, 2018
    Assignee: KYOWA CHEMICAL INDUSTRY CO., LTD.
    Inventors: Xing Dong Wang, Yoshihito Iwamoto, Koichi Nedachi
  • Publication number: 20160203893
    Abstract: A magnetic hydrotalcite composite which is useful in fields such as wastewater treatment, ultraviolet absorption, electromagnetic wave absorption and acid gas absorption, and a production method thereof. The magnetic hydrotalcite composite comprises an inner layer and an outer layer, in which the inner layer is made of a hydrotalcite compound and the outer layer is made of a ferrite compound.
    Type: Application
    Filed: December 2, 2014
    Publication date: July 14, 2016
    Applicant: KYOWA CHEMICAL INDUSTRY CO., LTD.
    Inventors: Xing Dong WANG, Yoshihito IWAMOTO, Koichi NEDACHI
  • Patent number: 8394392
    Abstract: An antibacterial agent composed of silver-containing aluminum sulfate hydroxide particles represented by the following formula (X-I) or (Y-I). (AgaBb-a)bAlcAx(SO4)y(OH)z.pH2O??(X-I) [AgaBb-a]b[Ti3-cAlc](SO4)y(OH)z.pH2O??(Y-I) The above antibacterial agent of the present invention provides antibacterial molded articles and further antifungal agents, cosmetics, antibacterial paper, antibacterial deodorizing sprays and agricultural chemicals when it is mixed with a resin.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: March 12, 2013
    Assignee: Kyowa Chemical Industry Co., Ltd.
    Inventors: Takeshi Imahashi, Xing Dong Wang, Akira Okada, Yoshie Inoue
  • Publication number: 20110244008
    Abstract: A cosmetic composition having an excellent ultraviolet and infrared protection function, a greatly improved feeling of use and high product stability such as color stability. The cosmetic composition comprises a polygonal or disk-like (“go” stone-like) aluminum salt hydroxide particle represented by the following formula (1). Ma[Al1-x(Zn1-yFe(III)y)x]bAcBd(OH)n.mH2O??(1) (wherein M is at least one cation selected from Na+ and K+, A is at least one member selected from organic acid anions having 2 to 10 carbon atoms and containing 1 to 4 carboxyl groups in the molecule, B is at least one inorganic acid anion selected from the group consisting of SO42?, NO31? and SiO32?, and a, b, c, d, m, n, x and y satisfy 0.7?a?1.35, 2.7?b?3.3, 0?c?0.5, 1.7?d?2.4, 0?m?5, 4?n?7, 0<x?0.66 and 0<y?1.0, respectively.
    Type: Application
    Filed: December 8, 2009
    Publication date: October 6, 2011
    Inventors: Xing Dong Wang, Takatoshi Sato
  • Patent number: 7678360
    Abstract: Alunite type compound particles represented by the following general formula (I) and having a specific value of D75/D25 when D25 is the particle diameter of particles which account for 25% of the total and D75 is the particle diameter of particles which account for 75% of the total in the cumulative particle size distribution curve measured by a laser diffraction method: Ma[Al1-xM?x]3(SO42?)y(OH)z.mH2O??(I) wherein M is at least one cation selected from the group consisting of Na+, K+, NH4+ and H3O+, M? is at least one cation selected from the group consisting of Cu2+, Zn2+, Ni2+, Sn4+, Zr4+ and Ti4+, and a, m, x, y and z satisfy 0.8?a?1.35, 0?m?5, 0?x?0.4, 1.7?y?2.5, and 4?z?7, respectively. The above particles of the present invention have a small average particle diameter, are spherical, disk-like or hexagonal and have an extremely narrow particle size distribution.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: March 16, 2010
    Assignee: Kyowa Chemical Industry Co., Ltd.
    Inventors: Akira Okada, Xing Dong Wang, Takatoshi Sato
  • Patent number: 7629480
    Abstract: There are provided organic acid anion containing aluminum salt hydroxide particles represented by the following general formula (I): Ma[Al1-xM?x]bAzBy(OH)n.mH2O??(I) (wherein M is at least one cation selected from the group consisting of Na+, K+, NH4+ and H3O+, M? is at least one metal cation selected from the group consisting of Cu2+, Zn2+, Ni2+, Sn4+, Zr4+, Fe2+, Fe3+ and Ti4+, A is at least one organic acid anion, B is at least one inorganic acid anion, and a, b, m, n, x, y and z satisfy 0.7?a?1.35, 2.7?b?3.3, 0?m?5, 4?n?7, 0?x?0.6, 1.7?y?2.4, and 0.001?z?0.5, respectively.) The particles are in the shape of grains, pairs, rectangular parallelepiped, disks (go stones), hexagonal plates, rice grains or cylinders and have a uniform particle diameter.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: December 8, 2009
    Assignee: Kyowa Chemical Industry Co., Ltd.
    Inventors: Xing Dong Wang, Akira Okada
  • Publication number: 20090047311
    Abstract: An antibacterial agent composed of silver-containing aluminum sulfate hydroxide particles represented by the following formula (X-I) or (Y-I). (AgaBb-a)bAlcAx(SO4)y(OH)z.pH2O??(X-I) [AgaBb-a]b[Ti3-cAlc](SO4)y(OH)z.pH2O??(Y-I) The above antibacterial agent of the present invention provides antibacterial molded articles and further antifungal agents, cosmetics, antibacterial paper, antibacterial deodorizing sprays and agricultural chemicals when it is mixed with a resin.
    Type: Application
    Filed: June 30, 2006
    Publication date: February 19, 2009
    Inventors: Takeshi Imahashi, Xing Dong Wang, Akira Okada, Yoshie Inoue
  • Publication number: 20090012223
    Abstract: Alunite type compound particles represented by the following general formula (I) and having a specific value of D75/D25 when D25 is the particle diameter of particles which account for 25% of the total and D75 is the particle diameter of particles which account for 75% of the total in the cumulative particle size distribution curve measured by a laser diffraction method: Ma[Al1-xM?x]3(SO42?)y(OH)z.mH2O??(I) wherein M is at least one cation selected from the group consisting of Na+, K+, NH4+ and H3O+, M? is at least one cation selected from the group consisting of Cu2+, Zn2+, Ni2+, Sn4+, Zr4+ and Ti4+, and a, m, x, y and z satisfy 0.8?a?1.35, 0?m?5, 0?x?0.4, 1.7?y?2.5, and 4?z?7, respectively. The above particles of the present invention have a small average particle diameter, are spherical, disk-like or hexagonal and have an extremely narrow particle size distribution.
    Type: Application
    Filed: April 6, 2006
    Publication date: January 8, 2009
    Inventors: Akira Okada, Xing Dong Wang, Takatoshi Sato