Patents by Inventor Hakki Han

Hakki Han 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: 20210395044
    Abstract: The present disclosure relates to an elevator having a function of removing dust adhered to an object aboard, including: a car which provides a boarding space, and in which a pair of air holes disposed in a diagonal direction each other at a same height of an inner space are formed; and a pair of fan modules that generates whirlwind rotating in the inner space of the car by ejecting air traveling from one of the pair of air hoes in a direction away from a center of the inner space of the car and ejecting air traveling from the other of the pair of air hoes in a direction away from the center of the inner space of the car, in which dust adhered to the object aboard inside the car is separated from the object aboard by the whirlwind generated inside the car.
    Type: Application
    Filed: May 11, 2021
    Publication date: December 23, 2021
    Inventors: Gum-Gee Lee, Ju Dae Kim, Hyung Seok Kim, Hakki Han
  • Patent number: 10396635
    Abstract: A reflective optical encoder (40) assembly includes a motor and brake assembly at least partially in a motor and brake housing (42). An encoder housing is at least partially received in a cavity (34) of the motor and brake housing. The reflective optical encoder includes an encoder disk (50) and an encoder shaft (44) that rotate with a shaft of the motor. The assembly includes holes (54, 56, 58) in the encoder disk. A seal (80) at an interface between the encoder housing and the encoder shaft to prevent contaminants from the cavity from entering the encoder housing and a packing inside the encoder housing. A packing (84) is situated to prevent any dust or debris associated with the encoder shaft rotating relative to the seal from getting on the encoder disk.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: August 27, 2019
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: HakKi Han
  • Publication number: 20190100412
    Abstract: The present disclosure is directed to an elevator door control system, which can prevent the risk of an obstacle-trapping (e.g. finger-trapping) accident. According to one aspect of the present disclosure, there is provided an elevator door control system comprising: at least a camera module configured to monitor opening/closing of doors of an elevator and analyze the captured video to determine whether there is an obstacle-trapping accident; a data communication part configured to transmit the analyzed video; and a main controller of the elevator configured to control opening/closing of the doors of the elevator based on determination results of the analyzed video transmitted from the data communication part.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 4, 2019
    Inventor: HakKi Han
  • Publication number: 20180212495
    Abstract: A reflective optical encoder (40) assembly includes a motor and brake assembly at least partially in a motor and brake housing (42). An encoder housing is at least partially received in a cavity (34) of the motor and brake housing. The reflective optical encoder includes an encoder disk (50) and an encoder shaft (44) that rotate with a shaft of the motor. The assembly includes holes (54, 56, 58) in the 40 encoder disk. A seal (80) at an interface between the encoder housing and the encoder shaft to prevent contaminants from the cavity from entering the encoder housing and a packing inside the encoder housing. A packing (84) is situated to prevent any dust or debris associated with the encoder shaft rotating relative to the seal from getting on the encoder disk.
    Type: Application
    Filed: August 24, 2016
    Publication date: July 26, 2018
    Inventor: HakKi HAN
  • Patent number: 8776953
    Abstract: An elevator door coupler includes a vane member adapted to be supported on one of a hoistway door or an elevator car door. A magnetic coupler device (500) is adapted to be supported on the other of the hoistway door or the elevator car door to be selectively magnetically coupled with the vane member. The magnetic coupler device includes a plurality of modules (520) each having a core and at least one coil associated with the core. An insulation material (528) occupies a space between the modules for substantially insulating adjacent coils from each other and for maintaining a desired alignment of the modules relative to each other.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: July 15, 2014
    Assignee: Otis Elevator Company
    Inventors: HakKi Han, Zbigniew Piech, David J. Lanesey, Pawel Witczak
  • Publication number: 20100282546
    Abstract: An elevator door coupler includes a vane member adapted to be supported on one of a hoistway door or an elevator car door. A magnetic coupler device (500) is adapted to be supported on the other of the hoistway door or the elevator car door to be selectively magnetically coupled with the vane member. The magnetic coupler device includes a plurality of modules (520) each having a core and at least one coil associated with the core. An insulation material (528) occupies a space between the modules for substantially insulating adjacent coils from each other and for maintaining a desired alignment of the modules relative to each other.
    Type: Application
    Filed: December 19, 2008
    Publication date: November 11, 2010
    Inventors: Hakki Han, Zbigniew Piech, David J. Lanesey, Pawel Witczak