Patents by Inventor Chien Nguyen

Chien Nguyen 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: 11929205
    Abstract: The invention offers an ultracapacitor-based power system solution with four main functional blocks which are power conditioning block, monitoring block, charge-discharge block and protection block. The proposed system has the advantage of working well in the environment of vibration, high temperature, has a large capacity to provide a large amount and radiates less heat compared to systems using traditional batteries. In addition, the system has functions to protect and stabilize the output voltage, and the operating parameters of the system is monitored continuously.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: March 12, 2024
    Assignee: VIETTEL GROUP
    Inventors: Truong Giang Duong, Canh Duong Nguyen, Duc Anh Nguyen, Xuan Chien Vuong, Phuong Nam Tran
  • Patent number: 11882392
    Abstract: A sound output device according to an exemplary embodiment of the present invention includes: a first housing; a second housing; a substrate; a light emitting unit; and a sound output unit, in which the second housing is connected with the first housing, the substrate is disposed inside the first housing or the second housing, the sound output unit is connected with the substrate, the light emitting unit is connected with the substrate, and the second housing selectively transmits light emitted by the light emitting unit based on a wavelength thereof.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: January 23, 2024
    Assignee: IRTRONIX, INC.
    Inventors: Danny Oh, Chien Nguyen
  • Patent number: 11863697
    Abstract: Provided is an electronic device including: a housing; a camera module oriented in a first direction inside the housing; a camera window arranged in front of the camera module in the first direction; a cover including an opening into which the camera window is insertable, the cover coupled to the housing; and a window frame supporting the camera window and mounted on the cover. The window frame includes: a frame body including a support portion arranged in the opening and supporting the camera window, and a mounting portion extending from the support portion in a second direction that is perpendicular to the first direction and overlapped by the cover in the first direction; a retention member retaining a first gap between the mounting portion and the cover in the first direction; and a waterproof body configured to be elastically deformed while arranged between the mounting portion and the cover.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: January 2, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hoang Nguyen Van, Tri Bui Dac, Tung Dong Manh, Quy Hoang Kim, Kyoungsun Lee, Thang Ngo Van, Chien Nguyen Quoc, Thanh Tran Quoc
  • Publication number: 20230400793
    Abstract: A toner container includes a container body, a cylindrical portion and a cap. The container body has a toner filling port. The cylindrical portion is provided around the filling port. The cap is detachable and closes an opening of the cylindrical portion. The cap includes: claw parts provided deformably and insertable into the cylindrical portion to be engaged with an edge of the filling port; a link piece connecting tip ends of the claw parts; a disk part having an opening; a closing plate capable of closing the opening of the disk part; and a fixing member which fixes the closing plate to the disk part. The closing plate is fixed to the disk part with the fixing member and the claw parts are engaged with the edge of the filling opening, so that the opening of the cylindrical is closed by the closing plate.
    Type: Application
    Filed: June 7, 2023
    Publication date: December 14, 2023
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Danh Chien NGUYEN
  • Patent number: 11780692
    Abstract: An image forming apparatus includes a main body housing, an openable/closable part, a sheet feeding tray, an image forming device, a sheet feeding roller, a first coupling, a drive gear, a second coupling, a biasing member, and a link mechanism. The first coupling is provided in the sheet feeding roller. The second coupling is provided coaxially with the drive gear, rotatable following the drive gear, slidable relative to the drive gear in an axial direction and capable of fitting to the first coupling. The biasing member biases the second coupling to the first coupling to connect the second coupling to the first coupling. The link mechanism disconnects the second coupling from the first coupling against a biasing force of the biasing member so as to block a transmission of the drive force with an opening of the openable/closable part.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: October 10, 2023
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Danh Chien Nguyen
  • Patent number: 11744665
    Abstract: A modular workspace platform system for providing a mobile work surface for a user includes a workspace platform attachable to a location specified by the user. The workspace platform includes a compact work surface for use in performing at least one manual task including temporarily storing a material, mixing two or more materials, temporarily supporting a tool, and providing a tool cleaning surface. In an embodiment, the compact work surface includes at least one of a trough, a tapered channel, a tool insertion slot, a wipe holder, a textured surface configured as the tool cleaning surface, a mixing surface a ruler holder, and a matrix ring holder.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: September 5, 2023
    Assignee: The Quick Co, LLC
    Inventors: Jack Chien Nguyen, Marc Andrew Hanchak, Peter Schuyler Livingston
  • Publication number: 20230116144
    Abstract: Provided is a vertical-cavity surface-emitting semiconductor laser diode, including a substrate and an epitaxial stack structure disposed on the substrate. The epitaxial stack structure includes an active region, a current confinement layer and a mode filter layer. The mode filter layer includes an optical aperture, and the mode filter layer is able to be oxidized. Accordingly, the optical aperture of the mode filter layer is formed by oxidizing the mode filter layer.
    Type: Application
    Filed: October 13, 2022
    Publication date: April 13, 2023
    Inventors: Van-Truoung Dai, Yu-Chung Chin, Chao-Hsing Huang, Van-Chien Nguyen
  • Patent number: 11577530
    Abstract: An image forming apparatus includes a cover portion and an auxiliary tray. The cover portion is displaced between a closing position for closing the supply port and an opening position for opening the supply port. The auxiliary tray is attached to a sheet stack surface of the cover portion, and supports the sheet, together with the cover portion at the opening position. The auxiliary tray is, either in a first attachment state or in a second attachment state, attached to the cover portion. In the first attachment state, a longitudinal direction of the auxiliary tray extends along a width direction that crosses a sheet insertion direction and the auxiliary tray is stored in the sheet stack surface. In the second attachment state, the longitudinal direction extends along the sheet insertion direction, and the auxiliary tray extends out from the cover portion toward an upstream in the sheet insertion direction.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: February 14, 2023
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Danh Chien Nguyen
  • Publication number: 20220349475
    Abstract: Systems and methods include providing a seal for an assembly. The seal includes a jacket having a base, an inner sealing leg, and an outer sealing leg, and further includes a spring disposed within the jacket between and in contact with the inner sealing leg and the outer sealing leg. The spring includes a metallic annular body comprising an inner diameter and an outer diameter, and a plurality of radially cut perforations disposed about at least one of the inner diameter and the outer diameter of the metallic annular body.
    Type: Application
    Filed: April 27, 2022
    Publication date: November 3, 2022
    Inventors: Chien NGUYEN, Xiang YAN
  • Publication number: 20220250911
    Abstract: Provided is a method of forming black phosphorus (BP) with a high purity and a high electrical conductivity. The method includes the steps of performing a milling process and a sintering process on red phosphorus (RP) and adding tin (Sn) while performing a milling process and a sintering process on red phosphorus (RP).
    Type: Application
    Filed: July 15, 2020
    Publication date: August 11, 2022
    Inventors: Jae Yong SONG, Ho Sun SHIN, Viet Chien NGUYEN
  • Patent number: 11346447
    Abstract: A seal assembly for high pressure equipment is disclosed and can include a back-up ring having a head and an extension extending from the head. The extension can include an interior surface that extends axially away from and radially inwardly from the head. The seal assembly can also include a spring energized seal having a jacket having a sealing portion with an annular spring disposed within the sealing portion of the jacket. At least a portion of the jacket fits around the extension of the back-up ring and wherein the back-up ring has a minimum inner diameter, IDBUR, the spring energized seal has a minimum inner diameter, IDSES, and IDSES is less than IDBUR.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: May 31, 2022
    Assignee: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Chien Nguyen, Xiang Yan, Van Duong
  • Publication number: 20220143236
    Abstract: In a sterilization apparatus and a sterilization container using the same according to an embodiment of the present invention, provided is a sterilization apparatus including: an accommodation unit accommodating an object therein, and having an entrance through which the object enters and exits formed on one side and a connector formed on the other side; a coupling unit supporting the accommodation unit provided in the connector; and a sterilization unit disposed adjacent to the accommodation unit by the coupling unit, and irradiating light to the inside of the accommodation unit through the connector to sterilize the object.
    Type: Application
    Filed: February 11, 2020
    Publication date: May 12, 2022
    Inventors: Danny OH, Chien NGUYEN
  • Publication number: 20220097987
    Abstract: An image forming apparatus includes a main body housing, an openable/closable part, a sheet feeding tray, an image forming device, a sheet feeding roller, a first coupling, a drive gear, a second coupling, a biasing member, and a link mechanism. The first coupling is provided in the sheet feeding roller. The second coupling is provided coaxially with the drive gear, rotatable following the drive gear, slidable relative to the drive gear in an axial direction and capable of fitting to the first coupling. The biasing member biases the second coupling to the first coupling to connect the second coupling to the first coupling. The link mechanism disconnects the second coupling from the first coupling against a biasing force of the biasing member so as to block a transmission of the drive force with an opening of the openable/closable part.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 31, 2022
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Danh Chien NGUYEN
  • Publication number: 20220086547
    Abstract: A sound output device according to an exemplary embodiment of the present invention includes: a first housing; a second housing; a substrate; a light emitting unit; and a sound output unit, in which the second housing is connected with the first housing, the substrate is disposed inside the first housing or the second housing, the sound output unit is connected with the substrate, the light emitting unit is connected with the substrate, and the second housing selectively transmits light emitted by the light emitting unit based on a wavelength thereof.
    Type: Application
    Filed: January 17, 2020
    Publication date: March 17, 2022
    Inventors: Danny OH, Chien NGUYEN
  • Publication number: 20220053076
    Abstract: Provided is an electronic device including: a housing; a camera module oriented in a first direction inside the housing; a camera window arranged in front of the camera module in the first direction; a cover including an opening into which the camera window is insertable, the cover coupled to the housing; and a window frame supporting the camera window and mounted on the cover. The window frame includes: a frame body including a support portion arranged in the opening and supporting the camera window, and a mounting portion extending from the support portion in a second direction that is perpendicular to the first direction and overlapped by the cover in the first direction; a retention member retaining a first gap between the mounting portion and the cover in the first direction; and a waterproof body configured to be elastically deformed while arranged between the mounting portion and the cover.
    Type: Application
    Filed: October 29, 2021
    Publication date: February 17, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hoang NGUYEN VAN, Tri BUI DAC, Tung DONG MANH, Quy HOANG KIM, Kyoungsun LEE, Thang NGO VAN, Chien NGUYEN QUOC, Thanh TRAN QUOC
  • Patent number: 11208278
    Abstract: A sheet feed device includes a sheet storage portion, a first regulation portion, a feed portion, and a second regulation portion. The sheet storage portion is attached to an apparatus main body in a detachable manner. A sheet is stored in the sheet storage portion. The first regulation portion stands on a bottom surface of the sheet storage portion and regulates a position of the sheet in a predetermined width direction by externally abutting on a first side of the sheet in the width direction. The feed portion is provided in the apparatus main body and feeds the sheet in a feed direction perpendicular to the width direction. The second regulation portion is provided in the apparatus main body and regulates a position of the sheet by externally abutting on the first side at a downstream of the first regulation portion in the feed direction.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: December 28, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Danh Chien Nguyen
  • Publication number: 20210187976
    Abstract: An image forming apparatus includes a cover portion and an auxiliary tray. The cover portion is displaced between a closing position for closing the supply port and an opening position for opening the supply port. The auxiliary tray is attached to a sheet stack surface of the cover portion, and supports the sheet, together with the cover portion at the opening position. The auxiliary tray is, either in a first attachment state or in a second attachment state, attached to the cover portion. In the first attachment state, a longitudinal direction of the auxiliary tray extends along a width direction that crosses a sheet insertion direction and the auxiliary tray is stored in the sheet stack surface. In the second attachment state, the longitudinal direction extends along the sheet insertion direction, and the auxiliary tray extends out from the cover portion toward an upstream in the sheet insertion direction.
    Type: Application
    Filed: December 16, 2020
    Publication date: June 24, 2021
    Inventor: Danh Chien Nguyen
  • Patent number: 10996619
    Abstract: An image forming apparatus includes an apparatus body, an image forming unit, a covering member, and a light emitting unit. The apparatus body has an opening through which an internal space is exposed. The image forming unit includes an image carrier to form an image on a sheet. The covering member has a closing face capable of closing the opening of the apparatus body from above. The covering member is pivotally supported on the apparatus body to pivot between a close position where the closing face closes the internal space and an open position where a portion of the image forming unit is exposed to the outside. The light emitting unit is attached to the closing face, and emits a light to the circumferential surface of the image carrier to form the electrostatic latent image in a state where the covering member is at the close position.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: May 4, 2021
    Inventor: Danh Chien Nguyen
  • Publication number: 20200310337
    Abstract: An image forming apparatus includes an apparatus body, an image forming unit, a covering member, and a light emitting unit. The apparatus body has an opening through which an internal space is exposed. The image forming unit includes an image carrier to form an image on a sheet. The covering member has a closing face capable of closing the opening of the apparatus body from above. The covering member is pivotally supported on the apparatus body to pivot between a close position where the closing face closes the internal space and an open position where a portion of the image forming unit is exposed to the outside. The light emitting unit is attached to the closing face, and emits a light to the circumferential surface of the image carrier to form the electrostatic latent image in a state where the covering member is at the close position.
    Type: Application
    Filed: March 23, 2020
    Publication date: October 1, 2020
    Inventor: Danh Chien Nguyen
  • Patent number: D992752
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: July 18, 2023
    Assignee: IRTronix, Inc.
    Inventors: Danny Oh, Chien Nguyen