Patents by Inventor Sunchao LIU

Sunchao LIU 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: 11313825
    Abstract: A gas sensor (1) including a sensor element (10) and a separator (90) having an element hole (90 h), as viewed from one of a forward-end or a rear-end side in the axial direction. The separator has end surfaces (90 e) located axially farthest toward the one of the forward-end or the rear-end side, recess regions (90 h), (90 r 1) and (90 r 2) recessed from the end surfaces, and regions R1 and R2. First regions R1 are determined by eliminating a region SB occupied by the sensor element from a region SA defined by imaginary short-side lines and the outer edge of the separator. Second regions R2 are determined by eliminating the region SB from a region SC defined by imaginary long-side lines and the outer edge of the separator. S2/S1?0.5 is satisfied, where S1 is the total area of R1 and R2, and S2 is the total area of the recess regions.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: April 26, 2022
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Sunchao Liu, Takehiro Oba
  • Publication number: 20210041393
    Abstract: A sensor (1) comprising: a sensor element (10); metal terminals; and a front side separator (90) and a rear side separator (95) to hold the metal terminals, the metal terminals each include a front side metal terminal (30) and a rear side metal terminal (40) respectively held by the front side separator and the rear side separator, a first connection portion (33) is provided on a rear side of the front side metal terminal, a second connection portion (43) is provided on a front side of the rear side metal terminal, and an axis P2 of one of the first and the second connection portion, in all of the plurality of metal terminals, is displaced toward a radially outer side of the sensor element relative to an axis P1 of a counterpart thereof, and the first connection portion and the second connection portion are in contact with each other.
    Type: Application
    Filed: August 6, 2020
    Publication date: February 11, 2021
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Sunchao LIU, Takehiro OBA
  • Publication number: 20210018461
    Abstract: A gas sensor (1) including a sensor element (10) and a separator (90) having an element hole (90h), as viewed from a particular side which is a forward-end side or a rear-end side. The separator has end surfaces (90e) located farthest in an axial direction toward the particular side, recess regions (90h), (90r1) and (90r2) recessed from the end surfaces, and first regions R1 and second regions R2. First regions R1 are determined by eliminating a region SB occupied by the sensor element from a region SA defined by imaginary short-side lines and the outer edge of the separator. Second regions R2 are determined by eliminating the region SB from a region SC defined by imaginary long-side lines and the outer edge of the separator. A relation of S2/S1?0.5 is satisfied, where S1 is the total area of R1 and R2, and S2 is the total area of the recess regions.
    Type: Application
    Filed: June 25, 2020
    Publication date: January 21, 2021
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Sunchao LIU, Takehiro Oba