Patents by Inventor Jiaqing Yu

Jiaqing Yu 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).

  • Publication number: 20200099125
    Abstract: An antenna and a mobile terminal are provided. At least two slots are disposed in a metal bezel of the mobile terminal, and the two slots divide the metal bezel into three metal sections. A radiating element of the antenna includes a second metal section located between the two slots, a first conductor, and a second conductor. The first conductor and the second conductor are separately connected to the second metal section. A feed point is connected to the first conductor by using a matching network. A ground point is connected to the second conductor to form a loop antenna. An electrical length path of a current from the feed point to the second metal section is not equal to an electrical length path of a current from the ground point to the second metal section.
    Type: Application
    Filed: September 16, 2017
    Publication date: March 26, 2020
    Inventors: Lijun YING, Hanyang WANG, Liang XUE, Jiaqing YOU, Chien-Ming LEE, Xiaoli YANG, Dong YU, Lei WANG
  • Publication number: 20190345775
    Abstract: The present application discloses a drill bit nozzle, which includes a nozzle body, a channel in the nozzle body, and a nozzle outlet arranged at an end of the nozzle body and in communication with the channel. The nozzle outlet is a strip-shaped outlet configured to eject a sheet-like jet flow. Since the nozzle outlet of the drill bit nozzle is a strip-shaped outlet, the nozzle outlet is able to eject a sheet-like jet flow. When the drill bit nozzle is applied to a PDC drill bit, the drill bit nozzle can uniformly eject a drilling fluid onto each cutting tooth, which ensures that the cutting teeth in the drill bit may obtain good cooling and chip removal effects, while avoiding excessive concentration of the jet flow from the drill bit nozzle which may erode the cutting teeth, thereby prolonging the service life of the drill bit.
    Type: Application
    Filed: October 10, 2018
    Publication date: November 14, 2019
    Applicant: SEED TECHNOLOGIES CORP., LTD.
    Inventors: Yuehua XU, Jiaqing YU, Weixiong WANG, Jianghe LUO, Runan ZHANG
  • Patent number: 9850717
    Abstract: Embodiments disclosed herein relate to a method for analyzing a fixed cutter drill bit, said method including selecting a cutter; selecting an earth formation; simulating drilling performance of the fixed cutter bit having at least once cutter thereon; performing finite element analysis using outputs from the simulating; and outputting stress on the at least one cutter.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: December 26, 2017
    Assignee: SMITH INTERNATIONAL, INC.
    Inventors: Zhehua Zhang, Jiaqing Yu
  • Publication number: 20160348440
    Abstract: A drill bit includes a bit body having a longitudinal bit axis extending there through, a plurality of journals extending from the bit body, each journal having a journal axis extending from a base of the journal through the length of the journal, a roller cone rotatably mounted to each of the journals, and at least one blade protruding from the bit body center and extending radially outward to less than an outer diameter of the drill bit.
    Type: Application
    Filed: May 27, 2015
    Publication date: December 1, 2016
    Inventors: Xiaoge Gan, Jiaqing Yu, Yuelin Shen, Youhe Zhang, Yong Zhou, Jian Wu
  • Patent number: 9187962
    Abstract: A cutting element has a sleeve with a first inner diameter and a second inner diameter, where the second inner diameter is larger than the first inner diameter and located at a lower axial position than the first inner diameter. A rotatable cutting element having an axis of rotation extending therethrough is at least partially disposed within the sleeve. The rotatable cutting element has a cutting face and a body extending axially downward from the cutting face, at least one hole extending from an outer surface of the body toward the axis of rotation, and a locking device disposed in each hole. The locking device protrudes from the hole to contact the second inner diameter of the sleeve, thereby retaining the rotatable cutting element within the sleeve.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: November 17, 2015
    Assignee: Smith International, Inc.
    Inventors: Yuri Burhan, Jiaqing Yu, Jonan M. Fulenchek, Youhe Zhang, Yuelin Shen
  • Patent number: 9033070
    Abstract: A cutting element for a drill bit includes an outer support element and an inner rotatable cutting element, a portion of which is disposed in the outer support element, where the inner rotatable cutting element has a body with a non-planar cutting face.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: May 19, 2015
    Assignee: Smith International, Inc.
    Inventors: Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu, Madapusi K. Keshavan
  • Publication number: 20140353046
    Abstract: A drill bit includes a bit body having a longitudinal axis extending there through, a plurality of journals extending downward and radially outward from the bit body, each journal having a journal axis extending from a base of the journal through the length of the journal, wherein the journal axis at the base is at a first radial distance from the longitudinal axis, a roller cone rotatably mounted to each of the journals, and at least one blade protruding from the bit body and extending axially and radially along the bit body from a first end to a second end, wherein the first end is at a second radial distance from the longitudinal axis greater than the first radial distance, and wherein the second end is at a gage region of the drill bit.
    Type: Application
    Filed: May 23, 2014
    Publication date: December 4, 2014
    Applicant: Smith International, Inc.
    Inventors: Zhehua Zhang, Jiaqing Yu, Scott D. McDonough
  • Publication number: 20140345951
    Abstract: A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, wherein the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and wherein a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches is disclosed.
    Type: Application
    Filed: August 11, 2014
    Publication date: November 27, 2014
    Inventors: Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu, Madapusi K. Keshavan
  • Publication number: 20140262537
    Abstract: Cutting elements comprise a body and a polycrystalline diamond table disposed thereon, wherein the diamond table has a thickness of greater than about 2 mm. The body is specially formed from WC—Co and has a Co content of equal to or less than about 10 weight percent based on the total weight of the WC—Co, a coefficient of thermal expansion that is less than about 5×10?6/° C., a Palmqvist toughness greater than about 180 kg/mm, and a hardness equal to or greater than about 88 HRA. In an example, the WC has an average particle size of about 1 to 5 micrometers, the Co content is from about 7 to 9 weight percent, the coefficient of thermal expansion is from about 4 to 5×10?6/° C., the Palmqvist toughness is from about 200 to 300 kg/mm, and the hardness is in the range of from about 88 to 90 HRA.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: SIKE XIA, XIN DENG, JIAQING YU
  • Patent number: 8800691
    Abstract: A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, wherein the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and wherein a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches is disclosed.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: August 12, 2014
    Assignee: Smith International, Inc.
    Inventors: Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu, Madapusi K. Keshavan
  • Publication number: 20140110181
    Abstract: Embodiments disclosed herein relate to a method for analyzing a fixed cutter drill bit, said method including selecting a cutter; selecting an earth formation; simulating drilling performance of the fixed cutter bit having at least once cutter thereon; performing finite element analysis using outputs from the simulating; and outputting stress on the at least one cutter.
    Type: Application
    Filed: October 18, 2013
    Publication date: April 24, 2014
    Applicant: Smith International, Inc.
    Inventors: Zhehua Zhang, Jiaqing Yu
  • Publication number: 20130312480
    Abstract: A method of manufacturing bulk nano-structured low carbon steel includes: preparing a blank of bulk low carbon steel; impacting the blank of bulk low carbon steel by using a compression device, so as to force the blank of bulk low carbon steel to perform a deformation at a high strain rate normally in a range of 102-103/s, so that the microstructure of the blank of bulk low carbon steel is nano-structured, that is, bulk nano-structured low carbon steel is thus manufactured. The bulk nano-structured low carbon steel is a plate having a thickness of not less than 5 mm or a bar having a diameter of not less than 5 mm.
    Type: Application
    Filed: December 20, 2011
    Publication date: November 28, 2013
    Inventors: Lixin Sun, Nairong Tao, Ke Lu, Matthias Kuntz, Jiaqing Yu
  • Patent number: 8413746
    Abstract: A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, wherein the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and wherein a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches is disclosed.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: April 9, 2013
    Assignee: Smith International, Inc.
    Inventors: Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu, Madapusi K. Keshavan
  • Publication number: 20120273281
    Abstract: A cutting element is disclosed that has a sleeve with a first inner diameter and a second inner diameter, wherein the second inner diameter is larger than the first inner diameter and located at a lower axial position than the first inner diameter, a rotatable cutting element having an axis of rotation extending therethrough, the rotatable cutting element at least partially disposed within the sleeve, wherein the rotatable cutting element has a cutting face and a body extending axially downward from the cutting face, at least one hole extending from an outer surface of the body toward the axis of rotation, and a locking device disposed in each hole, wherein the locking device protrudes from the hole to contact the second inner diameter of the sleeve, thereby retaining the rotatable cutting element within the sleeve.
    Type: Application
    Filed: April 26, 2012
    Publication date: November 1, 2012
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Yuri Burhan, Jiaqing Yu, Jonan M. Fulenchek, Youhe Zhang, Yuelin Shen
  • Publication number: 20120073881
    Abstract: A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, wherein the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and wherein a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches is disclosed.
    Type: Application
    Filed: December 6, 2011
    Publication date: March 29, 2012
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu, Madapusi K. Keshavan
  • Patent number: 8091655
    Abstract: A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, wherein the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and wherein a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches is disclosed.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: January 10, 2012
    Assignee: Smith International, Inc.
    Inventors: Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu, Madapusi K. Keshavan
  • Publication number: 20100219001
    Abstract: A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, wherein the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and wherein a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches is disclosed.
    Type: Application
    Filed: March 31, 2010
    Publication date: September 2, 2010
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu, Madapusi K. Keshavan
  • Patent number: 7757789
    Abstract: A rolling cone bit and a cutting insert for a rolling cone are disclosed. The insert includes an undulating cutting surface including a peak, and blades radiating therefrom. The cutting insert may include an ultrahard layer of diamond or other superabrasive material, wherein the outer cutting surface of the layer includes contours that generally correspond to the contours of the interface surface that is between the ultrahard layer and the substrate so as to reduce residual stresses and lessen the likelihood of spalling or delamination of the ultrahard material. The blades radiate from a central peak and may include a sharper and/or higher leading edge as compared to a trailing edge. Valleys between the blades may differ in depth, and the cutting surface may have an undulating perimeter.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: July 20, 2010
    Assignee: Smith International, Inc.
    Inventors: Zhou Yong, Jiaqing Yu, Chris A. Tucker
  • Patent number: RE47369
    Abstract: A cutting element for a drill bit includes an outer support element and an inner rotatable cutting element, a portion of which is disposed in the outer support element, where the inner rotatable cutting element has a body with a non-planar cutting face.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: April 30, 2019
    Assignee: Smith International, Inc.
    Inventors: Yuelin Shen, Youhe Zhang, Zhou Yong, Jiaqing Yu, Madapusi K. Keshavan
  • Patent number: D875147
    Type: Grant
    Filed: August 25, 2018
    Date of Patent: February 11, 2020
    Assignee: SEED TECHNOLOGIES CORP., LTD.
    Inventors: Yuehua Xu, Jiaqing Yu, Weixiong Wang, Jianghe Luo