Patents by Inventor Leihua CHEN

Leihua CHEN 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: 11578824
    Abstract: A crimping tool is described comprising a first crimping member, a second crimping member, at least one intermediate crimping member, a first sliding member and a second sliding member. The free ends of the first crimping member and the second crimping member form an opening of the crimping tool. The first crimping member, the at least one intermediate crimping member, and the second crimping member are sequentially hinged together via connecting devices. The first sliding member is slidably disposed on the free end of the first crimping member. The second sliding member is slidably disposed on the free end of the second crimping member. The first sliding member is adjacent to the second sliding member. The inner sides of the first crimping member, the at least one intermediate crimping member, the second crimping member, the first sliding member, and the second sliding member are formed to be pressed with the workpiece to be crimped.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: February 14, 2023
    Assignee: Ridge Tool Company
    Inventors: LeiHua Chen, Qi Zhou
  • Patent number: 11577299
    Abstract: A crimping tool is described comprising a first crimping member, a second crimping member, at least one intermediate crimping member, a first sliding member and a second sliding member. The free ends of the first crimping member and the second crimping member form an opening of the crimping tool. The first crimping member, the at least one intermediate crimping member, and the second crimping member are sequentially hinged together via connecting devices. The first sliding member is slidably disposed on the free end of the first crimping member. The second sliding member is slidably disposed on the free end of the second crimping member. The first sliding member is adjacent to the second sliding member. The inner sides of the first crimping member, the at least one intermediate crimping member, the second crimping member, the first sliding member, and the second sliding member are formed to be pressed with the workpiece to be crimped.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: February 14, 2023
    Assignee: Ridge Tool Company
    Inventors: LeiHua Chen, Qi Zhou
  • Patent number: 11343213
    Abstract: A method for generating a reputation value of a sender includes: obtaining non-spam logs in a specified period; calculating an initial reputation value of a target sender according to sender identifications and recipient identifications of the non-spam logs as well as the number of emails sent by senders of the non-spam logs; calculating a transferred reputation value of the target sender according to the sender identifications of the non-spam logs and the number of the emails sent by the senders of the non-spam logs; and calculating a current reputation value of the target sender according to the initial reputation value and the transferred reputation value of the target sender. The method can accurately calculate the reputation value of the sender without relying on an email sending history of the sender, thereby effectively preventing the reputation value of the sender from being increased by cheating.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: May 24, 2022
    Assignee: LUNKR TECHNOLOGY (GUANGZHOU) CO., LTD.
    Inventors: Leihua Chen, Qingfeng Pan
  • Publication number: 20210199249
    Abstract: The present application discloses an LED flexible filament strip and an LED flexible lamp. Compared with the prior art, the light source is in the form of a flexible strip, realizing omnidirectional light emission through winding, so that various light colors can be more fully mixed and the problem of abrupt color lumps is avoided. The overall light distribution is more uniform, and a multi-angle light supplementing effect is realized, thus solving the problem that the back of a cuboid light source is opaque. Multiple dispersed light sources are concentrated on one flexible light filament, so that the number of solder joints for welding the positive and negative electrodes of the light source is reduced, and the risks of desoldering and faulty soldering are also reduced.
    Type: Application
    Filed: June 12, 2020
    Publication date: July 1, 2021
    Inventors: Leihua CHEN, Qiaoming LIU
  • Patent number: 11047532
    Abstract: The present application discloses an LED flexible filament strip and an LED flexible lamp. Compared with the prior art, the light source is in the form of a flexible strip, realizing omnidirectional light emission through winding, so that various light colors can be more fully mixed and the problem of abrupt color lumps is avoided. The overall light distribution is more uniform, and a multi-angle light supplementing effect is realized, thus solving the problem that the back of a cuboid light source is opaque. Multiple dispersed light sources are concentrated on one flexible light filament, so that the number of solder joints for welding the positive and negative electrodes of the light source is reduced, and the risks of desoldering and faulty soldering are also reduced.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: June 29, 2021
    Assignee: HANGZHOU SKY-LIGHTING CO., LTD
    Inventors: Leihua Chen, Qiaoming Liu
  • Publication number: 20200344191
    Abstract: A method for generating a reputation value of a sender includes: obtaining non-spam logs in a specified period; calculating an initial reputation value of a target sender according to sender identifications and recipient identifications of the non-spam logs as well as the number of emails sent by senders of the non-spam logs; calculating a transferred reputation value of the target sender according to the sender identifications of the non-spam logs and the number of the emails sent by the senders of the non-spam logs; and calculating a current reputation value of the target sender according to the initial reputation value and the transferred reputation value of the target sender. The method can accurately calculate the reputation value of the sender without relying on an email sending history of the sender, thereby effectively preventing the reputation value of the sender from being increased by cheating.
    Type: Application
    Filed: July 9, 2020
    Publication date: October 29, 2020
    Inventors: Leihua Chen, Qingfeng Pan
  • Patent number: 10759037
    Abstract: The present invention relates to a hydraulic tool including a working unit, a driving unit, a connection unit, and a switching device. The working unit is adapted to operate a workpiece. The driving unit is configured to drive the working unit and comprises a housing and a movable part provided in the housing and movable between an initial position and an end position. The connection unit connects the working unit and the driving unit. The switching device can rotate between a first position and a second position. When the switching device is in the first position, the movable part of the driving unit has a first stroke from the initial position to the end position; when the switching device is in the second position, the movable part of the driving unit has a second stroke smaller than the first stroke.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: September 1, 2020
    Assignee: RIDGE TOOL COMPANY
    Inventors: Qi Zhou, Leihua Chen
  • Publication number: 20200271249
    Abstract: A crimping tool is described comprising a first crimping member, a second crimping member, at least one intermediate crimping member, a first sliding member and a second sliding member. The free ends of the first crimping member and the second crimping member form an opening of the crimping tool. The first crimping member, the at least one intermediate crimping member, and the second crimping member are sequentially hinged together via connecting devices. The first sliding member is slidably disposed on the free end of the first crimping member. The second sliding member is slidably disposed on the free end of the second crimping member. The first sliding member is adjacent to the second sliding member. The inner sides of the first crimping member, the at least one intermediate crimping member, the second crimping member, the first sliding member, and the second sliding member are formed to be pressed with the workpiece to be crimped.
    Type: Application
    Filed: May 13, 2020
    Publication date: August 27, 2020
    Inventors: LeiHua CHEN, Qi ZHOU
  • Publication number: 20190291165
    Abstract: A crimping tool is described comprising a first crimping member, a second crimping member, at least one intermediate crimping member, a first sliding member and a second sliding member. The free ends of the first crimping member and the second crimping member form an opening of the crimping tool. The first crimping member, the at least one intermediate crimping member, and the second crimping member are sequentially hinged together via connecting devices. The first sliding member is slidably disposed on the free end of the first crimping member. The second sliding member is slidably disposed on the free end of the second crimping member. The first sliding member is adjacent to the second sliding member. The inner sides of the first crimping member, the at least one intermediate crimping member, the second crimping member, the first sliding member, and the second sliding member are formed to be pressed with the workpiece to be crimped.
    Type: Application
    Filed: January 15, 2019
    Publication date: September 26, 2019
    Inventors: LeiHua CHEN, Qi ZHOU
  • Publication number: 20180345473
    Abstract: The present invention relates to a hydraulic tool including a working unit, a driving unit, a connection unit, and a switching device. The working unit is adapted to operate a workpiece. The driving unit is configured to drive the working unit and comprises a housing and a movable part provided in the housing and movable between an initial position and an end position. The connection unit connects the working unit and the driving unit. The switching device can rotate between a first position and a second position. When the switching device is in the first position, the movable part of the driving unit has a first stroke from the initial position to the end position; when the switching device is in the second position, the movable part of the driving unit has a second stroke smaller than the first stroke.
    Type: Application
    Filed: February 24, 2017
    Publication date: December 6, 2018
    Inventors: Qi ZHOU, Leihua CHEN