Patents by Inventor Xudong Zhang

Xudong Zhang 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: 20180187640
    Abstract: There is provided a manufacturing method of a hollow composite magnetic member having weakened magnetism in a portion of a ferromagnetic hollow member, the method includes: a step of forming a weak-magnetic area having weakened magnetism by melting and mixing a Ni-containing material and the hollow member by continuously supplying the Ni-containing material to a portion of the hollow member and heating the irradiation area having a line segment shape with the laser beam. Accordingly, since it is possible to prevent drop of a local portion of a hollow ferromagnetic pipe from being easily generated by a weak-magnetization treatment, to greatly reduce deformation generated by laser irradiation, and it becomes unnecessary to adjust the shielding gas pressure inside the pipe, the weak-magnetization treatment can be performed with higher efficiency and higher quality.
    Type: Application
    Filed: June 9, 2016
    Publication date: July 5, 2018
    Inventors: Xudong ZHANG, Shinya OKAMOTO, Nobuaki KOBAYASHI, Takahiro SAITO, Akihiro YAMAZAKI
  • Publication number: 20180152355
    Abstract: A method for establishing a neighbor relationship, where corresponding authentication information is added to packets that are sent from a first network device and a second network device to each other. The first network device sends a hello packet to the second network device. The second network device receives the hello packet, performs authentication, and responds to the hello packet using an extended unidirectional link (UDL) link state packet (LSP) when the authentication succeeds. The first network device receives the extended UDL LSP, and performs authentication. When an authentication result includes that both the first network device and the second network device enable authentication and the authentication succeeds, a neighbor relationship between the first network device and the second network device may be established.
    Type: Application
    Filed: January 29, 2018
    Publication date: May 31, 2018
    Inventors: Zhiyu Tang, Wenxia Hou, Xudong Zhang
  • Publication number: 20170330638
    Abstract: A nuclear reactor fuel rod is a fuel rod for a light-water reactor. The nuclear reactor fuel rod includes a fuel cladding tube and an end plug, both of which are formed of a silicon carbide material. A bonding portion between the fuel cladding tube and the end plug is formed by brazing with a predetermined metal bonding material interposed, and/or by diffusion bonding. The predetermined metal bonding material has a solidus temperature of 1200° C. or higher. An outer surface of the bonding portion, and a portion of an outer surface of the fuel cladding tube and the end plug, which is adjacent to the outer surface of the bonding portion are covered by bonding-portion coating formed of a predetermined coating metal. The predetermined metal bonding material and the predetermined coating metal have an average linear expansion coefficient which is less than 10 ppm/K.
    Type: Application
    Filed: November 26, 2014
    Publication date: November 16, 2017
    Applicant: Hitachi, Ltd.
    Inventors: Ryou ISHIBASHI, Kinya AOTA, Xudong ZHANG, Hideki KITA, Seiji YAMASHITA
  • Publication number: 20170317587
    Abstract: A switching regulator with constant on time control adopts a timer to time when the system is in discontinuous current mode (DCM). If the DCM lasted for a set time, a power stage in the switching regulator is controlled to be ON for a minimum on time duration, so as to ensure the switching regulator enters sleep mode.
    Type: Application
    Filed: April 14, 2017
    Publication date: November 2, 2017
    Inventors: Xudong Zhang, Yike Li
  • Publication number: 20170302547
    Abstract: A method for performing bidirectional forwarding detection (BFD) on an aggregated link between a first network device and a second network device, where the first network device sends, to the second network device, information used to establish at least two BFD sessions. The first network device receives information that is used to establish at least two BFD sessions and sent by the second network device. The first network device respectively establishes BFD sessions between at least two pairs of ports according to the stored information and the information sent by the second network device. The first network device determines whether at least one BFD session in the established BFD sessions is up. If at least one BFD session in the established BFD sessions is up, the first network device determines that the aggregated link between the first network device and the second network device is available.
    Type: Application
    Filed: June 30, 2017
    Publication date: October 19, 2017
    Inventors: Zuliang Wang, Xudong Zhang, Yu Liu, Rui Duan
  • Publication number: 20170302567
    Abstract: A bit error information transfer method, a network device, and a communications system are provided, so as to resolve a problem that an existing BFD mechanism cannot be applied to a layer 2 network and cannot be widely applied. In some feasible implementation manners of the application, the method includes: detecting, by a second network device, whether a bit error occurs on a first unidirectional link from a first network device to the second network device; when detecting that a bit error occurs on the first unidirectional link, generating an ISIS packet including bit error information, where the bit error information is used to indicate that the bit error occurs on the first unidirectional link; and sending the ISIS packet to the first network device.
    Type: Application
    Filed: June 28, 2017
    Publication date: October 19, 2017
    Inventors: Ruqin Lan, Wenxia Hou, Zhibo Hu, Xudong Zhang
  • Publication number: 20170301414
    Abstract: Provided herein is a fuel rod and a fuel assembly for light water reactors in which crack penetration to a fuel cladding tube or an end plug can be prevented even when cracking occurs at the joint between the fuel cladding tube and the end plug for which a ceramic base material is used. A fuel rod 10a for light water reactors includes: a cylindrical cladding tube 11 formed of a ceramic base material; a connection 21 formed of the same or similar material to the cladding tube 11; and an end plug 12a having a concave portion 12f of a continuously curved surface shape adapted to house the connection 21. The end plug 12a is formed of the same or similar material to the cladding tube 11. A slanted surface 11a formed at an end portion of the cladding tube 11, and a slanted surface 12d formed at an end portion of the end plug 12a are joined in contact with each other with a metallic joint material 20. The joint is supported by the connection 21.
    Type: Application
    Filed: August 25, 2015
    Publication date: October 19, 2017
    Applicant: Hitachi, Ltd.
    Inventors: Ryou ISHIBASHI, Yoshiyuki TAKAMORI, Xudong ZHANG
  • Publication number: 20170234599
    Abstract: Provided is a reservoir (120) of a dehumidifier (100) comprising an enclosure (121) defining an interior region and an exterior region; a first guide surface operatively engaged with a first counterpart surface of the dehumidifier (100) to define a guide path (140);and a handle (130) engaged with the reservoir (120). The handle (130) comprises a grasping surface adapted for being grasped by a hand of a user. The handle (130) is rotatably movable relative to the reservoir (120) between a first position and a second position. In the first position the handle is positioned to provide means for a user to ergonomically draw the reservoir along the guide path by hand. In the second position, the handle is positioned to provide means for a user to ergonomically carry the reservoir by hand.
    Type: Application
    Filed: October 14, 2014
    Publication date: August 17, 2017
    Applicant: Electrolux (Hangzhou) Home Appliance Co., Ltd.
    Inventors: Yalong DONG, Jianjun CAO, Xudong ZHANG, Zhigang GU
  • Publication number: 20170170013
    Abstract: A display panel and a method for fabricating the display panel are proposed. The method includes steps of forming an amorphous silicon (a-Si) film on a substrate, the a-Si film comprising at least two a-Si layers, and densities of dice of the two adjacent a-Si layers being different; and transforming the a-Si film into a polycrystalline silicon film. The poly-silicon layer have less grain boundaries and larger dice, thereby increasing carrier mobility of the poly-silicon film and correspondingly improving the performance of the display panel.
    Type: Application
    Filed: July 17, 2015
    Publication date: June 15, 2017
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Xudong ZHANG
  • Publication number: 20170095885
    Abstract: An object of the invention is to provide a laser welding quality determination method for improving a determination accuracy of a welding quality which is strongly affected by an inner defect of a welding bead, and a laser welding apparatus which includes a mechanism for performing the quality determination method. There is provided a laser welding quality determination method of determining a welding quality in laser welding, including: capturing an image of a molten pool formed by emitting a laser beam to a welding target material to acquire image data of the molten pool; measuring a width of the molten pool in a direction orthogonal to a welding direction from the acquired image data of the molten pool; calculating a penetration depth from the measured width of the molten pool; and determining the welding quality from the measured width and the calculated penetration depth of the molten pool.
    Type: Application
    Filed: February 3, 2015
    Publication date: April 6, 2017
    Inventors: Xudong ZHANG, Tatsuro KUROKI, Masayuki ICHINOHE
  • Publication number: 20170052135
    Abstract: An impedance spectroscopy biosensor is provided that is fabricated on a stretchable substrate. The stretchable substrate is integrated with an impedance biosensor that undergoes cyclic strain without cracking.
    Type: Application
    Filed: August 19, 2016
    Publication date: February 23, 2017
    Inventors: Ioana Voiculescu, Xudong Zhang
  • Publication number: 20170037519
    Abstract: A Cu-interconnection etching device includes an etching liquid tank containing therein an etching liquid that is a hydrogen peroxide based solution, a first concentration monitoring device receiving the etching liquid from the etching liquid tank and measuring a copper ion concentration of the etching liquid. The etching liquid is supplied through a filter assembly that filters off copper ions contained in the etching liquid so as to provide a filtered etching liquid. The filter etching liquid is supplied through a second concentration monitoring device that measures a copper ion concentration of the filtered etching liquid and conducts the filtered etching liquid back to the etching liquid tank. A variation between the measurements of the first and second concentration monitoring devices is used to control the operation of the filter assembly in order to maintain a proper level of copper ion concentration in the etching liquid.
    Type: Application
    Filed: October 19, 2016
    Publication date: February 9, 2017
    Applicant: Shenzhen China Star Optoelectronics Technology Co. , Ltd.
    Inventor: Xudong ZHANG
  • Patent number: 9565570
    Abstract: In a network constructed according to a network planning parameter, access scheduling is performed on a User Equipment UE in accordance with a type of a service of the UE; statistics on an indicator of performing access scheduling on the UE are acquired; and it is determined whether the indicator meets a requirement in network capacity planning; and when the indicator meets the requirement, a target planning parameter is determined as the network planning parameter; otherwise when the indicator does not meet the requirement, the network planning parameter is adjusted until the indicator meets the requirement in network capacity planning. Network capacity for multiple services is planned according to service features, improving accuracy of network capacity planning.
    Type: Grant
    Filed: June 9, 2013
    Date of Patent: February 7, 2017
    Assignee: ZTE Corporation
    Inventors: Hai Zhang, Jun Gu, Jing Qi, Tao Lu, Jun Yan, Xi Chen, Guotian Fan, Kun Xu, Zhenming Zhu, Xudong Zhang
  • Patent number: 9528188
    Abstract: The present invention provides a method of improving lifetime of etching liquid and yield in Cu-interconnection process and a Cu-interconnection etching device. The method comprises: step 1, providing an etching spray rising tank (1) and an etching liquid tank (2) connected to the etching spray rising tank (1), and the etching liquid tank (2) contains etching liquid; step 2, employing a first concentration monitoring device (4) to measure a copper ion concentration of the etching liquid in the etching liquid tank (2), and employing a filter (5) to perform copper ion filtering to the etching liquid in the etching liquid tank (2); step 3, employing a second concentration monitoring device (6) to measure a copper ion concentration of the etching liquid after filtering in the step 2, and controlling an amount of the filters (5) employed in the step 2 and reflowing the etching liquid after filtering to the etching liquid tank (2).
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: December 27, 2016
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Xudong Zhang
  • Patent number: 9509607
    Abstract: Embodiments of the present invention provide a method, network device, and system for sending and receiving a packet. The method includes fragmenting, by a first network device, a first Hello packet. Each Hello fragment packet has a fragment ID and a content identifier. The first network device sends fragment brief information of the first Hello packet to a second network device. The fragment brief information of the first Hello packet includes fragment information of each Hello fragment packet. The first network device sends the Hello fragment packet corresponding to the first Hello packet if the first network device receives a request packet sent by the second network device.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: November 29, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xudong Zhang, Wenxia Hou, Wei Zeng, Yuefeng Liu
  • Publication number: 20160325377
    Abstract: An object of the present invention is to reduce spatter generation by stabilizing a keyhole in a laser welding method. A welded joint in which a plurality of workpieces are welded by irradiation with a laser beam, wherein the following formulae 1 to 3 are satisfied, b/a?0.6—(formula 1), h/d?1.0—(formula 2), and h/a<3.0—(formula 3), where a is a surface width of a weld bead formed across the plurality of workpieces, h is a maximum penetration depth of the weld bead, b is a penetration width of the weld bead at a position where a penetration depth of the weld bead is h/2, and d is the penetration depth at a center position of the weld bead.
    Type: Application
    Filed: January 17, 2014
    Publication date: November 10, 2016
    Inventors: Xudong ZHANG, Kinya AOTA, Masanori MIYAGI
  • Publication number: 20160258575
    Abstract: At least one embodiment of the present disclosure provides a grip device for a lighting-on device which is used for detecting defects of a display panel. The grip device can grip a display panel by cooperating with a base of a lighting-on machine, so that the inclination angle of the display panel can be 75° to 90° during lighting-on test. Thereby the effective detection of defects can be ensured.
    Type: Application
    Filed: July 21, 2015
    Publication date: September 8, 2016
    Inventors: Xudong Zhang, Ting Cai, Haibin Liu, Zhenshan Lu, Peng Wang
  • Publication number: 20160238943
    Abstract: The present invention provides a photoresist stripping method and photoresist stripping apparatus. The photoresist stripping method includes: step1, providing a substrate with a photoresist layer waiting for stripping; step 2, irradiating the photoresist layer waiting for stripping with an ultraviolet light; step 3, stripping the photoresist on a surface of the substrate by using a stripper in a stripping tank; step 4, removing the stripper remained on the substrate by using an air knife in a buffer area after stripping the photoresist; and step 5, washing out the stripper remained on the substrate in a water washing tank after blowing the air knife. The present invention greatly reduces corrosion on the aluminum and IGZO generated during the photoresist stripping process, and the quality of the flat panel display can be improved.
    Type: Application
    Filed: July 2, 2014
    Publication date: August 18, 2016
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Xudong ZHANG
  • Publication number: 20160177456
    Abstract: The present invention provides a method of improving lifetime of etching liquid and yield in Cu-interconnection process and a Cu-interconnection etching device. The method comprises: step 1, providing an etching spray rising tank (1) and an etching liquid tank (2) connected to the etching spray rising tank (1), and the etching liquid tank (2) contains etching liquid; step 2, employing a first concentration monitoring device (4) to measure a copper ion concentration of the etching liquid in the etching liquid tank (2), and employing a filter (5) to perform copper ion filtering to the etching liquid in the etching liquid tank (2); step 3, employing a second concentration monitoring device (6) to measure a copper ion concentration of the etching liquid after filtering in the step 2, and controlling an amount of the filters (5) employed in the step 2 and reflowing the etching liquid after filtering to the etching liquid tank (2).
    Type: Application
    Filed: February 9, 2015
    Publication date: June 23, 2016
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventor: Xudong ZHANG
  • Patent number: 9112825
    Abstract: A computer-implemented system is provided for monitoring performance of a media player launched by a web browser. The media player is referenced by a document that defines a web page and is implemented as a plug-in to the web browser. Upon accessing the web page, the web browser launches the media player. The media player in turn launches a performance monitor that is implemented as a plug-in to the media player. The performance monitor subscribes to event listener objects exposed by the media player and receives event data that is reported by the event listener objects. Performance metrics pertaining to the media player are derived from the event data.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: August 18, 2015
    Assignee: Dynatrace LLC
    Inventors: Yuejiang Liu, Cheng Tang, Xudong Zhang, Jia Xie, Xiaoqiang Li