Patents by Inventor Dong Sik Han

Dong Sik 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).

  • Patent number: 11958341
    Abstract: A vehicular air-conditioning apparatus includes a photocatalytic module in which light is radiated on a photocatalytic filter to sterilize the photocatalytic filter. In particular, vehicular air-conditioning apparatus incudes: a duct to allow conditioned air to flow therethrough; the photocatalytic filter mounted in the duct and coated with a photocatalytic material to remove harmful substances in reaction to light energy; and a rotation unit rotatably mounted in the duct. In particular, the rotation unit is provided with a light source to radiate light toward the photocatalytic filter. When the rotation unit is rotated, a position of the light source is changed in a rotational direction of the rotation unit such that the light is radiated on the photocatalytic filter over an increased range. Thus, a filter sterilization effect is improved over the entire area of the photocatalytic filter with reduced number of light sources.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: April 16, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jae Seung Lee, Gee Young Shin, Dae Hee Lee, Dong Ho Kwon, Seung Sik Han, Myung Hoe Kim
  • Patent number: 11680710
    Abstract: A fuel nozzle, a fuel nozzle module having the same, and a combustor are provided. The fuel nozzle includes a nozzle cylinder having a space through which fuel flows and a plurality of fuel holes through which the fuel flows in a surface, a shroud spaced apart from the nozzle cylinder and formed to surround the nozzle cylinder in a longitudinal direction of the nozzle cylinder, and a mixing flow path formed between the nozzle cylinder and the shroud to mix the fuel supplied through the plurality of fuel holes and compressed air supplied from a compressor.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: June 20, 2023
    Assignee: DOOSAN ENERBILITY CO., LTD.
    Inventor: Dong Sik Han
  • Publication number: 20220221152
    Abstract: A fuel nozzle, a fuel nozzle module having the same, and a combustor having the same, which can solve a problem of combustion instability due to a high-frequency resonance generated by fuel containing hydrogen are provided. The fuel nozzle includes a fuel flow path through which a fuel flows, and a plurality of fuel plenums including a plurality of micro-mixers including a mixing flow path through which a fluid in which the fuel and compressed air are mixed flows and a fuel supply hole for supplying the fuel to the mixing flow path, wherein the plurality of fuel plenums are formed in the fuel flow path to be spaced apart from each other.
    Type: Application
    Filed: December 14, 2021
    Publication date: July 14, 2022
    Inventor: Dong Sik HAN
  • Publication number: 20220214043
    Abstract: A fuel nozzle, a fuel nozzle module having the same, and a combustor are provided. The fuel nozzle includes a nozzle cylinder having a space through which fuel flows and a plurality of fuel holes through which the fuel flows in a surface, a shroud spaced apart from the nozzle cylinder and formed to surround the nozzle cylinder in a longitudinal direction of the nozzle cylinder, and a mixing flow path formed between the nozzle cylinder and the shroud to mix the fuel supplied through the plurality of fuel holes and compressed air supplied from a compressor.
    Type: Application
    Filed: December 14, 2021
    Publication date: July 7, 2022
    Inventor: Dong Sik HAN
  • Patent number: 7450564
    Abstract: A head end apparatus is used in a VoIP (voice over Internet protocol) network providing a VoIP service to subscribers by using an MGCP (media gateway control protocol, the VoIP network employing data communication terminals together with VoIP terminals. The head end apparatus allows the VoIP network to provide data communication service as well as VoIP service to the subscribers by minimizing lack of authorized IP (Internet protocol) addresses. The head end apparatus having an MGCP network address translator (NAT) router establishes a second path for VoIP communication between a VoIP terminal and an IP (Internet protocol) network which is separated from a first path for data communication established between a data communication terminal and the IP network by a contemporary router.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: November 11, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-Sik Han
  • Patent number: 6891947
    Abstract: A multifunctional analog TRK circuit board is designed so as to serve as both loop, ground start, DID, E&M, ring down and both way TRK. Thus, the various analog TRK circuits are embodied in a single TRK board, thereby increasing productivity compared to the conventional system requiring separate TRK circuit boards. The multifunctional TRK circuit is selectively controlled to provide desired TRK functions.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: May 10, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung-Hwan Kim, Dong-Sik Han
  • Patent number: 6871359
    Abstract: The present invention relates to an inner cloth for a glove which is inserted between a lining material contacting with a user's skin and an outer skin exposed to the outside and includes a certain connection member for thereby being fixed together with a lining material and an outer skin based on a sewing operation, so that it is possible to implement good moisture penetration, anti-cold, and waterproof functions. The inner cloth for a glove includes a pair of hand-shaped panel members which each include a certain size or area and an edge portion connected at a certain width, and a connection member which is arranged at a certain position of the pair of the panel members and is integrally formed when the panel members are connected, and is formed in a certain shape. The glove implements good moisture penetration, anti-cold and waterproof functions using the inner cloth of the present invention.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: March 29, 2005
    Inventor: Dong Sik Han
  • Publication number: 20030219011
    Abstract: A head end apparatus is used in a VoIP (voice over Internet protocol) network providing a VoIP service to subscribers, that uses data communication terminals together with VoIP terminals, by using an MGCP (media gateway control protocol). The head end apparatus allows the VoIP network to provide data communication service as well as VoIP service to the subscribers while minimizing lack of authorized IP (Internet protocol) addresses.
    Type: Application
    Filed: May 9, 2003
    Publication date: November 27, 2003
    Inventor: Dong-Sik Han
  • Publication number: 20030167555
    Abstract: The present invention relates to an inner cloth for a glove which is inserted between a lining material contacting with a user's skin and an outer skin exposed to the outside and includes a certain connection member for thereby being fixed together with a lining material and an outer skin based on a sewing operation, so that it is possible to implement good moisture penetration, anti-cold, and waterproof functions. The inner cloth for a glove includes a pair of hand-shaped panel members which each include a certain size or area and an edge portion connected at a certain width, and a connection member which is arranged at a certain position of the pair of the panel members and is integrally formed when the panel members are connected, and is formed in a certain shape. The glove implements good moisture penetration, anti-cold and waterproof functions using the inner cloth of the present invention.
    Type: Application
    Filed: September 4, 2002
    Publication date: September 11, 2003
    Inventor: Dong Sik Han
  • Patent number: 5991397
    Abstract: A method for automatically providing voice paging information of a caller in a switching system having an automatic attendant function. The method includes the steps of controlling an automatic answering machine equipped in the switching system upon receiving an incoming call, thereby outputting an announcement message containing a voice paging announcement message, and waiting for input data from the caller. When voice paging request data is received during the waiting for the input data, the automatic answering machine is controlled to output a voice paging announcement message, thereby establishing a voice paging channel. The switching system also broadcasts a voice paging signal received from the caller, waits for a response of an extension subscriber, and establishes a channel for the incoming call when the extension subscriber responds, thereby executing a call service associated with the incoming call.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: November 23, 1999
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Dong-Sik Han