Patents by Inventor Khoa Vo

Khoa Vo 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: 10917657
    Abstract: A method is provided for encoding at least one current image. The method implements, at an image capturing terminal, for at least one portion to be encoded of the current image: determining a piece of information related to manipulation of the terminal by a user, in relation with the at least one captured current image; obtaining at least one piece of data related to the current image by transforming the determined piece of information; and from the obtained piece of data, implementing at least one of the following acts: predicting a piece of movement information associated with the at least one portion of the current image, and determining at least one characteristic of an encoding mode associated with the at least one portion of the current image.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: February 9, 2021
    Assignee: ORANGE
    Inventors: Joel Jung, Dang Khoa Vo Nguyen
  • 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
  • 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
  • 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
  • Publication number: 20190006961
    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: Application
    Filed: June 30, 2017
    Publication date: January 3, 2019
    Inventors: Songtao Wu, Khoa Vo, Chi-Ming Wang, Debasish Banerjee, Ercan Mehmet Dede, Shailesh Joshi
  • Publication number: 20180205327
    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: Application
    Filed: February 15, 2017
    Publication date: July 19, 2018
    Inventors: Songtao Wu, Chi-Ming Wang, Khoa Vo, Debasish Banerjee, Ercan Mehmet Dede
  • Patent number: 10011222
    Abstract: A system includes a shell at least partially formed in a shape of a steering wheel and having a first layer and a second layer spaced apart from one another. The system further includes an LED coupled to the shell or the steering wheel. The system also includes a positive triboelectric material coupled to the first layer of the shell and that loses electrons in response to friction. The system further includes a negative triboelectric material coupled to the second layer of the shell and that gains electrons in response to friction. The system further includes an electrical connector coupled to the LED and at least one of the positive triboelectric material or the negative triboelectric material. Current flows through the electrical connector to illuminate the LED when force is being applied to the shell causing the positive triboelectric material to contact the negative triboelectric material.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: July 3, 2018
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Songtao Wu, Chi-Ming Wang, Khoa Vo, Debasish Banerjee, Ercan M. Dede
  • Publication number: 20180179389
    Abstract: A multi-layered pigment includes a metal core such as Al—SiO2. A high refractive index layer such as TiO2 is applied by an aqueous organic two-phase process to and surrounding the metal core. The high refractive index layer has a thickness greater than 120 nm wherein the high refractive index layer is uniform and crack-free.
    Type: Application
    Filed: February 23, 2018
    Publication date: June 28, 2018
    Inventors: Khoa Vo, Songtao Wu, Debasish Banerjee, Masahiko Ishii
  • Patent number: 9932480
    Abstract: A process of forming a multi-layered pigment includes the steps of: providing a metal core material; dispersing the metal core material in a first solvent and organic binder mixture; depositing a high refractive index material onto the metal core material; drying the deposited high refractive index and metal core material wherein the high refractive index layer is uniform and crack-free.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: April 3, 2018
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Khoa Vo, Songtao Wu, Debasish Banerjee, Masahiko Ishii
  • Publication number: 20170134744
    Abstract: A method is provided for encoding at least one current image. The method implements, at an image capturing terminal, for at least one portion to be encoded of the current image: determining a piece of information related to manipulation of the terminal by a user, in relation with the at least one captured current image; obtaining at least one piece of data related to the current image by transforming the determined piece of information; and from the obtained piece of data, implementing at least one of the following acts: predicting a piece of movement information associated with the at least one portion of the current image, and determining at least one characteristic of an encoding mode associated with the at least one portion of the current image.
    Type: Application
    Filed: June 15, 2015
    Publication date: May 11, 2017
    Inventors: Joel Jung, Dang Khoa Vo Nguyen
  • Patent number: 9359504
    Abstract: A process of forming a multi-layered pigment comprising the steps of: providing a metal core material; treating the metal core material with an acid, depositing a passivation layer onto the metal core material; densifying the metal core material having the passivation layer reducing a pore size of the passivation layer; and depositing a high refractive index material onto the sintered material wherein the high refractive index layer is uniform and crack free.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: June 7, 2016
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Songtao Wu, Khoa Vo, Debasish Banerjee, Masahiko Ishii
  • Publication number: 20160002469
    Abstract: A process of forming a multi-layered pigment comprising the steps of: providing a metal core material; treating the metal core material with an acid, depositing a passivation layer onto the metal core material; densifying the metal core material having the passivation layer reducing a pore size of the passivation layer; and depositing a high refractive index material onto the sintered material wherein the high refractive index layer is uniform and crack free.
    Type: Application
    Filed: July 3, 2014
    Publication date: January 7, 2016
    Inventors: Songtao Wu, Khoa Vo, Debasish Banerjee, Masahiko Ishii
  • Publication number: 20160002432
    Abstract: A process of forming a multi-layered pigment includes the steps of: providing a metal core material; dispersing the metal core material in a first solvent and organic binder mixture; depositing a high refractive index material onto the metal core material; drying the deposited high refractive index and metal core material wherein the high refractive index layer is uniform and crack-free.
    Type: Application
    Filed: July 3, 2014
    Publication date: January 7, 2016
    Inventors: Khoa Vo, Songtao Wu, Debasish Banerjee, Masahiko Ishii
  • Publication number: 20150138642
    Abstract: A hybrid omnidirectional structural color pigment. The pigment exhibits a visible color to the human eye and has a very small or non-noticeable color shift when exposed to broadband electromagnetic radiation (e.g. white light) and viewed from angles between 0 and 45° relative to the normal of an outer surface of the pigment. The pigment is in the form or a multilayer stack that has a reflective core layer and at least two high index of refraction (nh) layers. One of the nh layers can be a dry deposited nh dielectric layer that extends across the reflective core layer and one of the layers can be a wet deposited nh outer protective coating layer. An absorber layer that extends between the dry deposited nh dielectric layer and the wet deposited nh outer protective layer can also be included.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 21, 2015
    Inventors: Debasish Banerjee, Songtao Wu, Khoa Vo
  • Publication number: 20150033988
    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: Application
    Filed: August 15, 2014
    Publication date: February 5, 2015
    Inventors: Songtao Wu, Khoa Vo, Debasish Banerjee, Masahiko Ishii