Patents by Inventor Khac Thap BUI

Khac Thap BUI 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).

  • Image reading device and image forming device comprising a drive device configured to selectively apply a driving force to the carriage and the plutality of pairs of conveyance rollers, wherein the device driver includes an abutting member, a motor, a carriage that rotates in conjunction with the motor supports a first main body gear to mesh with a cover input gear and a second main body gear to mesh with a main rack gear
    Patent number: 11438480
    Abstract: One motor is shared for carriage movement and document sheet conveyance. An abutting member stops the carriage, that has moved from a second position located below a first end portion of a platen glass, at a first position located below a contact glass. The carriage supports the motor and first and second main body gears. The main body gears interlock with the motor. A cover input gear meshes with the first main body gear when the carriage is located between the first position and a relay region. A main rack gear meshes with the second main body gear when the carriage is located in a region extending from the relay region to a third position located below a second end portion of the platen glass. A load torque applied to the motor is larger when the carriage is fixed than when the cover input gear is fixed.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: September 6, 2022
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Khac Thap Bui, Danh Hoang Nguyen
  • IMAGE READING DEVICE, IMAGE FORMING APPARATUS
    Publication number: 20220014643
    Abstract: One motor is shared for carriage movement and document sheet conveyance. An abutting member stops the carriage, that has moved from a second position located below a first end portion of a platen glass, at a first position located below a contact glass. The carriage supports the motor and first and second main body gears. The main body gears interlock with the motor. A cover input gear meshes with the first main body gear when the carriage is located between the first position and a relay region. A main rack gear meshes with the second main body gear when the carriage is located in a region extending from the relay region to a third position located below a second end portion of the platen glass. A load torque applied to the motor is larger when the carriage is fixed than when the cover input gear is fixed.
    Type: Application
    Filed: November 7, 2019
    Publication date: January 13, 2022
    Inventors: Khac Thap BUI, Danh Hoang NGUYEN