Patents by Inventor Songtao Wu

Songtao Wu 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: 10998638
    Abstract: A metallic component including NiCr and having a skin depth ? of greater than or equal to 1.0 ?m in a frequency range from 20-40 GHz, as calculated by: ? = 2 ? ? ? ( 2 ? ? ? ? ? f ) ? ( ? 0 ? ? r ) ? 503 ? ? ? ? r ? f . In this equation, ? is skin depth in meters (m); ? is resistivity in ohm meter (?·m); f is frequency of an electromagnetic radiation in hertz (Hz); ?0 is permeability; and ?r is relative permeability of the NiCr metallic material. The metallic component may be a discrete metallic particle or a layer in a multilayer thin film.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: May 4, 2021
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Debasish Banerjee, Songtao Wu, Naohide Uchida, Takeshi Yamakawa, Hidetaka Asano
  • Patent number: 10995599
    Abstract: Embodiments of the present disclosure disclose a shale oil in-situ lightening development method, apparatus and system, wherein the method comprises: determining an effective shale interval according to an interval with a total organic carbon greater than a first lower limit value in a target stratum; determining a favorable region for shale oil in-situ lightening development according to a thickness of the effective shale interval and an effective layer thickness ratio, wherein the effective layer thickness ratio includes a ratio of the thickness of the effective shale interval to a thickness of a shale section, and the shale section includes the effective shale intervals and interlayers therebetween. By utilizing the embodiments of the present disclosure, the benefit of the shale oil in-situ lightening development can be improved.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: May 4, 2021
    Assignee: PetroChina Company Limited
    Inventors: Lianhua Hou, Caineng Zou, Suyun Hu, Jinhua Fu, Xianyang Liu, Xia Luo, Jinghong Wang, Lijun Zhang, Senhu Lin, Zhi Yang, Songtao Wu, Jingwei Cui
  • Patent number: 10988714
    Abstract: Bioactive coatings that include a base and a protein associated with the base for actively promoting the removal of organic stains are provided. In aspects, bioactive coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme, and, optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: April 27, 2021
    Assignees: Regents of the University of Minnesota, Toyota Motor Corporation
    Inventors: Andreas Buthe, Ping Wang, Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
  • Patent number: 10953797
    Abstract: A cloaking device with an object-side, an image-side, and a cloaked region is provided. A first object-side converging lens and a second object-side converging lens are positioned on the object-side, and a first image-side converging lens and a second image-side converging lens are positioned on the image-side. A coherent image guide with an object-side end optically aligned with the second object-side converging lens and an image-side end optically aligned with the second image-side converging lens is included. Light from an object positioned on the object-side of the cloaking device is focused in parallel onto the object-side end of the coherent image guide by the first object-side converging lens and the second object-side converging lens, propagates through the coherent image guide, and is focused in parallel by the second image-side converging lens and the first image-side converging lens to form an image of the object on the image-side of the cloaking device.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: March 23, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Kyu-Tae Lee, Mindy Zhang, Debasish Banerjee, Songtao Wu
  • Patent number: 10883069
    Abstract: Bioactive coatings that include a base and a protein associated with the base for actively promoting the removal of organic stains are provided. In aspects, bioactive coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme, and, optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: January 5, 2021
    Assignees: Toyota Motor Corporation, Regents of the University of Minnesota
    Inventors: Andreas Buthe, Ping Wang, Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
  • Patent number: 10882996
    Abstract: A method for forming a multilayer thin film having a crystalline metal oxide layer, the method including: encapsulating at least one encapsulated layer of the multilayer thin film in a wet chemical composition by wet chemical methods; and crystallizing the wet chemical composition by microwave hydrothermal treatment to form a crystalline metal oxide layer encapsulating the at least one encapsulated layer of the multilayer thin film.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: January 5, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North Amercia, Inc.
    Inventors: Songtao Wu, Debasish Banerjee, Hongfei Jia, Krishna Reddy Gunugunuri
  • Patent number: 10870740
    Abstract: An omnidirectional structural color pigment having a protective coating. The pigment has a first layer of a first material and a second layer of a second material, the second layer extending across the first layer. In addition, the pigment reflects a band of electromagnetic radiation having a predetermined full width at half maximum (FWHM) of less than 300 nm and a predetermined color shift of less than 30° when the pigment is exposed to broadband electromagnetic radiation and viewed from angles between 0 and 45°. The pigment has a weather resistant coating that covers an outer surface thereof and reduces a relative photocatalytic activity of the pigment by at least 50%.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: December 22, 2020
    Assignees: Toyota Jidosha Kabushiki Kaisha, Viavi Solutions Inc.
    Inventors: Songtao Wu, Khoa Vo, Debasish Banerjee, Masahiko Ishii, Alberto Argoitia
  • Publication number: 20200392432
    Abstract: A substrate or coating is provided that includes a protease with enzymatic activity toward a component of a biological stain. Also provided is a process for facilitating the removal of a biological stain is provided wherein an inventive substrate or coating including a protease is capable of enzymatically degrading of one or more components of the biological stain to facilitate biological stain removal from the substrate or said coating.
    Type: Application
    Filed: July 20, 2020
    Publication date: December 17, 2020
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation
    Inventors: Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
  • Patent number: 10804818
    Abstract: A triboelectric generator includes a resiliently-deformable hexagonal housing including a first housing wall and a second housing wall positioned opposite the first housing wall. A first electrode resides along the first housing wall, and a second electrode resides along the second housing wall. A dielectric contact layer is positioned in intimate contact with the first electrode and between the first electrode and the second electrode. The dielectric contact layer is spaced apart from the second housing wall. The first housing wall is coupled to the second housing wall such that at least one of the first housing wall and the second housing wall is resiliently movable toward the other one of the first housing wall and the second housing wall so as to enable contact between the dielectric contact layer and the second electrode during operation of the triboelectric generator.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: October 13, 2020
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Songtao Wu, Khoa Vo, Chi-Ming Wang, Debasish Banerjee, Ercan Mehmet Dede, Shailesh Joshi
  • Publication number: 20200308443
    Abstract: Bioactive coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme capable of enzymatically degrading a component of an organic stain, optionally a lipase or a lysozyme, and optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or bacterial organic material.
    Type: Application
    Filed: June 16, 2020
    Publication date: October 1, 2020
    Inventors: Hongfei Jia, Ping Wang, Liting Zhang, Andreas Buthe, Xueyan Zhao, Songtao Wu, Masahiko Ishii, Minjuan Zhang
  • Publication number: 20200308508
    Abstract: Bioactive coatings that include a base and a protein associated with the base for actively promoting the removal of organic stains are provided. In aspects, bioactive coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme, and, optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.
    Type: Application
    Filed: June 12, 2020
    Publication date: October 1, 2020
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation, Regents of the University of Minnesota
    Inventors: Andreas Buthe, Ping Wang, Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
  • Patent number: 10767141
    Abstract: A substrate or coating is provided that includes a protease with enzymatic activity toward a component of a biological stain. Also provided is a process for facilitating the removal of a biological stain is provided wherein an inventive substrate or coating including a protease is capable of enzymatically degrading of one or more components of the biological stain to facilitate biological stain removal from the substrate or said coating.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: September 8, 2020
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation
    Inventors: Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
  • Publication number: 20200280136
    Abstract: A metallic component including a metallic material and having a skin depth ? of greater than or equal to 1.0 ?m in a frequency range from 20-40 GHz, as calculated by: ? = 2 ? ? ( 2 ? ? ? ? f ) ? ( ? 0 ? ? r ) ? 5 ? 0 ? 3 ? ? ? r ? f . In this equation, ? is skin depth in meters (m); ? is resistivity in ohm meter (?·m); f is frequency of an electromagnetic radiation in hertz (Hz); ?0 is permeability; and ?r is relative permeability of the metallic material. The metallic component may be a discrete metallic particle or a layer in a multilayer thin film.
    Type: Application
    Filed: May 20, 2020
    Publication date: September 3, 2020
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Debasish Banerjee, Songtao Wu, Naohide Uchida, Takeshi Yamakawa, Hidetaka Asano
  • Publication number: 20200251828
    Abstract: A metallic component including NiCr and having a skin depth ? of greater than or equal to 1.0 ?m in a frequency range from 20-40 GHz, as calculated by: ? = 2 ? ? ? ( 2 ? ? ? ? ? f ) ? ( ? 0 ? ? r ) ? 503 ? ? ? ? r ? f . In this equation, ? is skin depth in meters (m); ? is resistivity in ohm meter (?·m); f is frequency of an electromagnetic radiation in hertz (Hz); ?0 is permeability; and ?r is relative permeability of the NiCr metallic material. The metallic component may be a discrete metallic particle or a layer in a multilayer thin film.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 6, 2020
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Debasish Banerjee, Songtao Wu, Naohide Uchida, Takeshi Yamakawa, Hidetaka Asano
  • Patent number: 10668953
    Abstract: A cloaking device assembly comprises an object-side, an image-side, a reference optical axis extending from the object-side to the image-side, a cloaked region positioned between the object-side and the image-side and a cloaked article positioned within the cloaked region. An object-side converging lens is positioned on the object-side, an image-side converging lens is positioned on the image-side, and a hexagonal prism is positioned within the cloaked region between the object-side converging lens and the image-side converging lens. Light from an object positioned on the object-side of the cloaking device and obscured by the cloaked region propagates through the object-side converging lens, the hexagonal prism, and the image-side converging lens to form an image of the object on the image-side of the cloaking device such that the cloaked region and the cloaked article within the cloaked region do not appear to be positioned between the object and the image.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: June 2, 2020
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Kyu-Tae Lee, Mindy Zhang, Songtao Wu, Debasish Banerjee
  • Patent number: 10635213
    Abstract: An on-touch e-paper display includes an e-ink substrate having a plurality of cells each having a fluid, positively charged particles of a first color, and negatively charged particles of a second color. The on-touch e-paper display further includes a transparent triboelectric generator. The transparent triboelectric generator includes a main portion including a transparent conductor located on the e-ink substrate, and a transparent electron negative dielectric material located on the transparent conductor such that the transparent conductor is located between the e-ink substrate and the transparent electron negative dielectric material at the main portion.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: April 28, 2020
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventor: Songtao Wu
  • Publication number: 20200109311
    Abstract: Bioactive coatings that are stabilized against inactivation by weathering are provided including a base including an enzyme associated therein, and a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 9, 2020
    Inventors: Hongfei Jia, Ping Wang, Liting Zhang, Andreas Buthe, Xueyan Zhao, Songtao Wu, Masahiko Ishii, Minjuan Zhang
  • Publication number: 20200103560
    Abstract: A method for forming a multilayer thin film structure includes directly depositing an absorber layer to encapsulate a dielectric layer, and the dielectric layer encapsulates a reflective core particle. The method further including depositing an outer layer to encapsulate the absorber layer, and the multilayer thin film structure has a hue shift of less than 30° in the Lab color space when viewed at angles from 0° to 45°.
    Type: Application
    Filed: January 31, 2019
    Publication date: April 2, 2020
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Songtao Wu, Debasish Banerjee
  • Publication number: 20200088923
    Abstract: A multilayer thin film that reflects an omnidirectional structural color having a reflective core layer, a Fe2O3 dielectric absorbing layer extending across the reflective core layer, a W semi-transparent absorbing layer extending across the dielectric absorbing layer, and an outer layer extending across the semi-transparent absorbing layer. The outer layer is formed from a dielectric material, wherein the multilayer thin film reflects a single narrow band of visible light when exposed to broadband electromagnetic radiation, the single narrow band of visible light having a hue between 0° and 120° in the Lab color space, a color shift of the single narrow band of visible light is less than 30° measured in Lab color space when the multilayer thin film is exposed to broadband electromagnetic radiation and viewed from angles between 0° and 45° relative to a direction normal to an outer surface of the multilayer thin film.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Debasish Banerjee, Songtao Wu
  • Patent number: 10587208
    Abstract: An elastomeric triboelectric generator housing structured for incorporation into a wheel for a vehicle is provided. The housing includes a least one cavity having a pair of opposed walls, and a triboelectric generator incorporated into the at least one cavity. The at least one cavity is structured to actuate responsive to application of at least one force to the housing along an axis extending through the at least one cavity and between a central axis of the housing and a circumference of the housing.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: March 10, 2020
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Songtao Wu, Chi-Ming Wang, Khoa Vo, Debasish Banerjee, Ercan Mehmet Dede