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: 10563094
    Abstract: 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: July 29, 2015
    Date of Patent: February 18, 2020
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation, Regents of the University of Minnesota
    Inventors: Hongfei Jia, Ping Wang, Liting Zhang, Andreas Buthe, Xueyan Zhao, Songtao Wu, Masahiko Ishii, Minjuan Zhang
  • Publication number: 20200023906
    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: Application
    Filed: April 4, 2018
    Publication date: January 23, 2020
    Inventors: Kyu-Tae Lee, Mindy Zhang, Songtao Wu, Debasish Banerjee
  • Publication number: 20200018145
    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: Application
    Filed: July 11, 2019
    Publication date: January 16, 2020
    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
  • Publication number: 20200018740
    Abstract: The embodiments of the present disclosure disclose a method, apparatus and system for determining sweet spot region for shale oil in-situ conversion development. The method comprises: determining an output oil and gas potential index according to a Total Organic Carbon (TOC), a Hydrogen Index (HI) and a shale density; determining a heated shale section according to the output oil and gas potential index and corresponding lower limit value of the oil and gas potential index that is determined according to a well arrangement mode and a shale vitrinite reflectance; determining an output quantity according to a thickness and an area of the heated shale section and data of the output oil and gas potential index; determining a Return on Investment (ROI) according to the output quantity and an invested cost; and determining a sweet spot region for shale oil in-situ conversion development by using the ROI.
    Type: Application
    Filed: July 11, 2019
    Publication date: January 16, 2020
    Inventors: Lianhua Hou, Jinhua Fu, Xia Luo, Xianyang Liu, Lijun Zhang, Shixiang Li, Senhu Lin, Zhi Yang, Qian Zou, Jingwei Cui, Songtao Wu, Jinghong Wang
  • Publication number: 20200003939
    Abstract: A multilayer thin film that reflects an omnidirectional structural color including a reflective core layer; a dielectric absorbing layer extending across the reflective core layer; a 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 or a dielectric absorbing material, and the multilayer thin film reflects a single narrow band of visible light having a hue between 0° and 120° in the Lab color space, and a color shift less than 30° measured in Lab color space when the multilayer stack is viewed from angles between 0° and 45° relative to a direction normal to an outer surface of the multilayer thin film. The multilayer thin film may include a protective layer positioned between the reflective core layer and the dielectric absorbing layer.
    Type: Application
    Filed: June 29, 2018
    Publication date: January 2, 2020
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.,
    Inventors: Debasish Banerjee, Songtao Wu
  • Publication number: 20200002541
    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: Application
    Filed: January 25, 2019
    Publication date: January 2, 2020
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Songtao Wu, Debasish Banerjee, Hongfei Jia, Krishna Reddy Gunugunuri
  • Patent number: 10479276
    Abstract: A cloaking device includes an object-side, an image-side, a cloaked region (CR) between the object-side and the image-side. An object-side CR reflection boundary, an object-side half-mirror, and an object-side multiband dichroic color filter are positioned on the object side and an image-side CR reflection boundary, an image-side half-mirror, and an image-side multiband dichroic color filter are positioned on the image-side. The object-side half-mirror and the object-side multiband dichroic color filter are spaced apart from and positioned generally parallel to the object-side CR reflection boundary, and the image-side half-mirror and the image-side multiband dichroic color filter are spaced apart from and positioned generally parallel to the image-side CR reflection boundary. Light from an object located on the object-side of the cloaking device and obscured by the CR propagates via three optical paths to form an image of the object on the image-side of the cloaking device.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: November 19, 2019
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Chengang Ji, Kyu-Tae Lee, Songtao Wu, Debasish Banerjee
  • Publication number: 20190346952
    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: Application
    Filed: May 11, 2018
    Publication date: November 14, 2019
    Inventor: Songtao Wu
  • Publication number: 20190322218
    Abstract: A cloaking device comprises an object-side, an image-side, a cloaked region between the object-side and the image-side. An object-side optical component and an object-side tilt correction (TC) component are positioned on the object-side, and an image-side optical component and an image-side TC component are positioned on the image-side. The cloaking device is tilted relative to an object positioned on the object-side such that light from the object is incident on the cloaking device at an acute angle. The object-side TC component redirects light from the object incident on the cloaking device such that the light propagates through the cloaking device generally normal to the object-side and image-side optical components. The image-side TC component redirects light propagating through the cloaking device back to normal to the object to form an image of the object on the image-side of the cloaking device which, if not for the TC components, would be distorted.
    Type: Application
    Filed: April 23, 2018
    Publication date: October 24, 2019
    Inventors: Kyu-Tae Lee, Songtao Wu, Debasish Banerjee
  • Publication number: 20190308557
    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: Application
    Filed: April 5, 2018
    Publication date: October 10, 2019
    Inventors: Kyu-Tae Lee, Mindy Zhang, Debasish Banerjee, Songtao Wu
  • Publication number: 20190310450
    Abstract: A cloaking device includes an object-side, an image-side, a cloaked region (CR) between the object-side and the image-side. An object-side CR reflection boundary, an object-side half-mirror, and an object-side multiband dichroic color filter are positioned on the object side and an image-side CR reflection boundary, an image-side half-mirror, and an image-side multiband dichroic color filter are positioned on the image-side. The object-side half-mirror and the object-side multiband dichroic color filter are spaced apart from and positioned generally parallel to the object-side CR reflection boundary, and the image-side half-mirror and the image-side multiband dichroic color filter are spaced apart from and positioned generally parallel to the image-side CR reflection boundary. Light from an object located on the object-side of the cloaking device and obscured by the CR propagates via three optical paths to form an image of the object on the image-side of the cloaking device.
    Type: Application
    Filed: April 4, 2018
    Publication date: October 10, 2019
    Inventors: Chengang Ji, Kyu-Tae Lee, Songtao Wu, Debasish Banerjee
  • Patent number: 10351062
    Abstract: A cloaking device includes an object-side, an image-side, and a cloaked region (CR) between the object-side and the image-side. An object-side CR reflection boundary, an object-side half-mirror, and an object-side external reflection boundary are positioned on the object-side, and an image-side CR reflection boundary, an image-side half-mirror, and an image-side external reflection boundary are positioned on the image-side. The object-side half-mirror and the object-side external reflection boundary are spaced apart and generally parallel to the object-side CR reflection boundary, and the image-side half-mirror and the image-side external reflection boundary are spaced apart and generally parallel to the image-side CR reflection boundary. Light from an object located on the object-side of the cloaking device and obscured by the CR is redirected around the CR via two optical paths to form an image of the object on the image-side of the cloaking device.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: July 16, 2019
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Kyu-Tae Lee, Chengang Ji, Songtao Wu, Debasish Banerjee
  • Patent number: 10345605
    Abstract: A cloaking device includes an object-side, an image-side and a cloaked region between the object-side and the image-side. An object-side polyhedron with an entrance side and an exit side parallel to the entrance side is positioned on the object-side and an image-side polyhedron with an entrance side and an exit side parallel to the entrance side is positioned on the image-side. The entrance side of the object-side polyhedron is oriented relative to a reference optical axis extending between the object-side and the image-side at an acute angle ? and the exit side of the image-side polyhedron is oriented relative to the reference optical axis at an oblique angle equal to 180°??. Light from an object positioned on the object-side of the cloaking device is redirected around the cloaked region, without total internal reflection of the light within the object-side polyhedron or the image-side polyhedron.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: July 9, 2019
    Assignee: Toyota Motor Engineering & Manufacturing North America
    Inventors: Kyu-Tae Lee, Chengang Ji, Songtao Wu, Debasish Banerjee
  • Publication number: 20190153360
    Abstract: A liquid coating material and processes of its use are provided that includes an enzyme with enzymatic activity toward a component of a biological stain and a polymeric material. Also provided are processes for facilitating the removal of a biological stain wherein an inventive liquid coating material including an enzyme is capable of enzymatically degrading of one or more components of the biological stain to facilitate biological stain removal from a substrate or coating upon which the biological stain is contacting.
    Type: Application
    Filed: January 26, 2019
    Publication date: May 23, 2019
    Inventors: Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
  • Publication number: 20190153359
    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: January 26, 2019
    Publication date: May 23, 2019
    Inventors: Andreas Buthe, Ping Wang, Songtao Wu, Hongfei Jia, Masahiko Ishii, Minjuan Zhang
  • Publication number: 20190144710
    Abstract: 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: January 26, 2019
    Publication date: May 16, 2019
    Inventors: Hongfei Jia, Ping Wang, Liting Zhang, Andreas Buthe, Xueyan Zhao, Songtao Wu, Masahiko Ishii, Minjuan Zhang
  • Publication number: 20190144711
    Abstract: Bioactive coatings suitable for facilitating removal of a fingerprint when contacting the coating 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. Also provided are processes of facilitating fingerprint removal.
    Type: Application
    Filed: January 26, 2019
    Publication date: May 16, 2019
    Inventors: Hongfei Jia, Ping Wang, Liting Zhang, Andreas Buthe, Xueyan Zhao, Songtao Wu, Masahiko Ishii, Minjuan Zhang
  • Publication number: 20190144709
    Abstract: 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: January 26, 2019
    Publication date: May 16, 2019
    Inventors: Hongfei Jia, Ping Wang, Liting Zhang, Andreas Buthe, Xueyan Zhao, Songtao Wu, Masahiko Ishii, Minjuan Zhang
  • Publication number: 20190146229
    Abstract: A cloaking device includes an object-side, an image-side and a cloaked region between the object-side and the image-side. An object-side polyhedron with an entrance side and an exit side parallel to the entrance side is positioned on the object-side and an image-side polyhedron with an entrance side and an exit side parallel to the entrance side is positioned on the image-side. The entrance side of the object-side polyhedron is oriented relative to a reference optical axis extending between the object-side and the image-side at an acute angle ? and the exit side of the image-side polyhedron is oriented relative to the reference optical axis at an oblique angle equal to 180°??. Light from an object positioned on the object-side of the cloaking device is redirected around the cloaked region, without total internal reflection of the light within the object-side polyhedron or the image-side polyhedron.
    Type: Application
    Filed: November 15, 2017
    Publication date: May 16, 2019
    Inventors: Kyu-Tae Lee, Chengang Ji, Songtao Wu, Debasish Banerjee
  • Publication number: 20190146196
    Abstract: A cloaking device includes an object-side, an image-side, and a cloaked region (CR) between the object-side and the image-side. An object-side CR reflection boundary, an object-side half-mirror, and an object-side external reflection boundary are positioned on the object-side, and an image-side CR reflection boundary, an image-side half-mirror, and an image-side external reflection boundary are positioned on the image-side. The object-side half-mirror and the object-side external reflection boundary are spaced apart and generally parallel to the object-side CR reflection boundary, and the image-side half-mirror and the image-side external reflection boundary are spaced apart and generally parallel to the image-side CR reflection boundary. Light from an object located on the object-side of the cloaking device and obscured by the CR is redirected around the CR via two optical paths to form an image of the object on the image-side of the cloaking device.
    Type: Application
    Filed: November 15, 2017
    Publication date: May 16, 2019
    Inventors: Kyu-Tae Lee, Chengang Ji, Songtao Wu, Debasish Banerjee