Patents by Inventor Chang Shin Park

Chang Shin Park 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: 11968156
    Abstract: The present disclosure provides a method for receiving system information in a wireless communication system supporting a TDD narrowband. More specifically, a method performed by a terminal includes receiving first system information from a base station through an anchor carrier, the first system information including operation mode information on an operation mode of the system; determining a location of a non-anchor carrier for receiving second system information based on the operation mode information; and receiving the second system information from the base station through the non-anchor carrier, in which the operation mode information is configured in a guard band or an in-band. In this way, SIB1-NB is also transmitted and received on the non-anchor carrier.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: April 23, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Chang Hwan Park, Seokmin Shin, Seunggye Hwang, Joonkui Ahn, Suckchel Yang
  • Patent number: 8500246
    Abstract: An inkjet print head including a substrate and a first film member stacked on the substrate to form an ink path, and a manufacturing method thereof. The first film member includes a path-defining layer made of a photosensitive material and formed with the ink path, and an adhesive layer made of a photosensitive material and used to stably bond the path-defining layer to the substrate. With this configuration, the path-defining layer and the adhesive layer can be simultaneously stacked on the substrate and also, can be patterned simultaneously.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: August 6, 2013
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Sung Joon Park, Jin Wook Lee, Chang Shin Park, Tae Kyun Kim
  • Patent number: 8297740
    Abstract: A head chip for an inkjet image forming apparatus. The head chip can include a heater formed on a substrate to generate heat, a chamber layer formed on the heater and provided with an ink chamber that receives inks, a nozzle layer formed on the chamber layer and provided with a nozzle in correspondence with the ink chamber, and a heat transfer layer transferring a part of the heat from the heater to the nozzle. According to the head chip, the inks sprayed through the nozzle are heated by the heat transferred through the heat transfer layer. Thus, the viscosity of the inks is reduced, so that the inks can be easily cut into ink droplets having a substantially spherical shape.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: October 30, 2012
    Assignee: Samsung Electronic Co., Ltd.
    Inventors: Jae Sik Min, Ohyun Beak, Chang Shin Park
  • Patent number: 8275280
    Abstract: A print terminal unit includes a storage unit to store a lookup table on which information regarding an image forming apparatus corresponding to at least one type of a document is recorded, a user interface through which at least one type of at least one document to be printed is selected, and a controller to control an image forming apparatus that corresponds to the selected type of the document among the plurality of image forming apparatuses according to the lookup table to print the document. Accordingly, the user easily performs printing operation using an image forming apparatus separately depending on the type of the document.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: September 25, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-gu Kim, Don-seon Lee, Chang-shin Park
  • Patent number: 8197032
    Abstract: A thermal inkjet printhead that includes a substrate, a chamber layer stacked on the substrate, an ink chamber formed in the chamber layer, a heater to heat ink filled in the ink chamber to generate bubbles, and a nozzle layer stacked on the chamber layer, and including a nozzle formed in the nozzle layer, wherein a ratio of the volume of ink ejected through the nozzle with respect to the sum of the volumes of the ink chamber and the nozzle is in the range of approximately 40 to 60%.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: June 12, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-kyun Kim, Chang-shin Park, Myung-song Jung
  • Patent number: 8118403
    Abstract: An inkjet printhead and a method of manufacturing the inkjet printhead. In the inkjet printhead, an anti reflective layer is formed of a material absorbing light on a chamber layer, and a nozzle layer including a plurality of nozzles is formed on the anti reflective layer.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: February 21, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-wook Lee, Chang-shin Park, Sung-jun Park
  • Patent number: 8052277
    Abstract: An inkjet image forming apparatus having an array type print head to stably deliver a printing medium through a printing zone. The inkjet image forming apparatus includes an array type print head including a nozzle part to discharge ink to a printing zone, a first rolling unit having a first nip portion to nip the printing medium, wherein the first nip portion is disposed before the printing zone to deliver the printing medium to the printing zone, and a second rolling unit having a second nip portion to nip the printing medium, wherein the second nip portion is disposed downstream of the first rolling unit in a delivery direction of the printing medium. A distance between the first nip portion and the second nip portion is less than or equal to 3 inches.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: November 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Choon Kim, Heon Soo Park, Chang Shin Park, Karp Sik Youn, Myung Song Jung
  • Patent number: 7988257
    Abstract: An ink cartridge to prevent image degradation due to a misalignment of nozzles in a transfer direction of a printing medium and a transverse direction includes a print head substrate, a first head unit including at least one first print head chip which is disposed on the print head substrate and includes a plurality of first nozzles arranged in plural lines in a second direction perpendicular to a first direction which is a transfer direction of a printing medium, thereby forming a first line in the second direction, and a second head unit including at least one second print head chip which is disposed on the print head substrate and which has an ink jetting area overlapping a predetermined area of the first line, thereby forming an overlapping area, and which includes a plurality of second nozzles arranged in plural lines in the second direction, thereby forming a second line spaced from the first line, and dots formed by the first and the second nozzles, which neighbor each other in the overlapping area whe
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myung-song Jung, Chang-shin Park, Tae-kyun Kim, Jae-cheol Lee, Dong-hwan Kim
  • Patent number: 7955668
    Abstract: An embodiment of a media sheet has a barrier layer formed on a first surface of a substrate. An image-receiving layer is formed on the barrier layer. A porous pigment layer is formed on a second surface of the substrate.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: June 7, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xulong Fu, Chang Shin Park, Ronald J. Selensky
  • Publication number: 20100183321
    Abstract: A print terminal unit includes a storage unit to store a lookup table on which information regarding an image forming apparatus corresponding to at least one type of a document is recorded, a user interface through which at least one type of at least one document to be printed is selected, and a controller to control an image forming apparatus that corresponds to the selected type of the document among the plurality of image forming apparatuses according to the lookup table to print the document. Accordingly, the user easily performs printing operation using an image forming apparatus separately depending on the type of the document.
    Type: Application
    Filed: January 14, 2010
    Publication date: July 22, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Young-gu Kim, Don-seon Lee, Chang-shin Park
  • Publication number: 20100033536
    Abstract: An inkjet printhead and a method of manufacturing the inkjet printhead. In the inkjet printhead, an anti reflective layer is formed of a material absorbing light on a chamber layer, and a nozzle layer including a plurality of nozzles is formed on the anti reflective layer.
    Type: Application
    Filed: January 9, 2009
    Publication date: February 11, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jin-wook Lee, Chang-shin Park, Sung-jun Park
  • Publication number: 20090237451
    Abstract: An inkjet print head including a substrate and a first film member stacked on the substrate to form an ink path, and a manufacturing method thereof. The first film member includes a path-defining layer made of a photosensitive material and formed with the ink path, and an adhesive layer made of a photosensitive material and used to stably bond the path-defining layer to the substrate. With this configuration, the path-defining layer and the adhesive layer can be simultaneously stacked on the substrate and also, can be patterned simultaneously.
    Type: Application
    Filed: October 20, 2008
    Publication date: September 24, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung Joon Park, Jin Wook Lee, Chang Shin Park, Tae Kyun Kim
  • Publication number: 20090195578
    Abstract: An ink cartridge to prevent image degradation due to a misalignment of nozzles in a transfer direction of a printing medium and a transverse direction includes a print head substrate, a first head unit including at least one first print head chip which is disposed on the print head substrate and includes a plurality of first nozzles arranged in plural lines in a second direction perpendicular to a first direction which is a transfer direction of a printing medium, thereby forming a first line in the second direction, and a second head unit including at least one second print head chip which is disposed on the print head substrate and which has an ink jetting area overlapping a predetermined area of the first line, thereby forming an overlapping area, and which includes a plurality of second nozzles arranged in plural lines in the second direction, thereby forming a second line spaced from the first line, and dots formed by the first and the second nozzles, which neighbor each other in the overlapping area whe
    Type: Application
    Filed: September 29, 2008
    Publication date: August 6, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Myung-song Jung, Chang-shin Park, Tae-kyun Kim, Jae-cheol Lee, Dong-hwan Kim
  • Publication number: 20090017394
    Abstract: Hollow toner and a process of preparing the same are provided. The hollow toner has a hollow sphere shape, wherein an outer layer surrounding the hollow sphere includes a polymer, a wax and a pigment. The hollow toner has excellent fixing properties under low energy and low pressure, and can be efficiently used at high-speed fixing. Also, a small amount of the hollow toner is consumed. Thus, the hollow toner can be efficiently applied to various apparatuses of forming an image such as a two-component low-temperature printer and super high-speed printer, and the hollow toner can be prepared by using a relatively simple process.
    Type: Application
    Filed: February 4, 2008
    Publication date: January 15, 2009
    Inventors: Kyeong Pang, Chang-shin Park, Kyung-yol Yon, Min-young Cheong, Hong-chul Shin
  • Publication number: 20090002455
    Abstract: A head chip for an inkjet image forming apparatus. The head chip can include a heater formed on a substrate to generate heat, a chamber layer formed on the heater and provided with an ink chamber that receives inks, a nozzle layer formed on the chamber layer and provided with a nozzle in correspondence with the ink chamber, and a heat transfer layer transferring a part of the heat from the heater to the nozzle. According to the head chip, the inks sprayed through the nozzle are heated by the heat transferred through the heat transfer layer. Thus, the viscosity of the inks is reduced, so that the inks can be easily cut into ink droplets having a substantially spherical shape.
    Type: Application
    Filed: June 3, 2008
    Publication date: January 1, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jae Sik MIN, Ohyun BEAK, Chang Shin PARK
  • Publication number: 20080303874
    Abstract: A thermal inkjet printhead that includes a substrate, a chamber layer stacked on the substrate, an ink chamber formed in the chamber layer, a heater to heat ink filled in the ink chamber to generate bubbles, and a nozzle layer stacked on the chamber layer, and including a nozzle formed in the nozzle layer, wherein a ratio of the volume of ink ejected through the nozzle with respect to the sum of the volumes of the ink chamber and the nozzle is in the range of approximately 40 to 60%.
    Type: Application
    Filed: January 11, 2008
    Publication date: December 11, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Tae-kyun KIM, Chang-shin Park, Myung-song Jung
  • Publication number: 20080090033
    Abstract: An embodiment of a media sheet has a barrier layer formed on a first surface of a substrate. An image-receiving layer is formed on the barrier layer. A porous pigment layer is formed on a second surface of the substrate.
    Type: Application
    Filed: October 12, 2006
    Publication date: April 17, 2008
    Inventors: Xulong Fu, Chang Shin Park, Ronald J. Selensky
  • Patent number: 6902650
    Abstract: The present invention provides a method making stratified paper by redistributing the pulp suspension inside the headbox nozzle using acoustic radiation waves. Acoustic radiation forces fractionate fibers based on fiber radius. The acoustic radiation waves separate the fibers by pushing the coarse and longer fibers to the inner area while fines and smaller fibers remain in the outer area. This has a similar effect of multi-layer stratification headbox, and provides paper with a smoother surface.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: June 7, 2005
    Assignee: International Paper Company
    Inventors: Chang Shin Park, Hanjian Xu
  • Publication number: 20040154775
    Abstract: The present invention provides a method making stratified paper by redistributing the pulp suspension inside the headbox nozzle using acoustic radiation waves. Acoustic radiation forces fractionate fibers based on fiber radius. The acoustic radiation waves separate the fibers by pushing the coarse and longer fibers to the inner area while fines and smaller fibers remain in the outer area. This has a similar effect of multi-layer stratification headbox, and provides paper with a smoother surface.
    Type: Application
    Filed: November 3, 2003
    Publication date: August 12, 2004
    Inventors: Chang Shin Park, Hanjian Xu