Patents by Inventor Dong Ryu

Dong Ryu 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: 7245943
    Abstract: An apparatus and method are provided for inputting a character in a mobile communication terminal which displays character items representing types of characters on a screen of the mobile communication terminal in order for a user to select a type of character to be input in a character input mode. The apparatus and method comprise mapping each of the character items to each of predetermined keys included in a keypad and displaying mapped items, when the mobile communication terminal enters the character input mode; and setting predetermined characters to be display characters for displaying on the screen when a predetermined key signal is input while a preset key signal is input, the predetermined characters being included in a character item corresponding to the predetermined key signal, the predetermined key signal corresponding to one of the displayed character items.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: July 17, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Shin-Dong Ryu
  • Publication number: 20070055023
    Abstract: The present invention provides a polymeric composite binder which comprises binder polymer and a dispersant chemically bound to the surface of the binder polymer, as well as an electrode slurry, electrode and secondary battery using the same. By virtue of the dispersant chemically bound to the binder polymer surface, the present invention achieves an improvement in the stability of binder latex, an improvement in the dispersion and coating properties of electrode slurry, and also an improvement in the capacity and cycle characteristic of a battery.
    Type: Application
    Filed: May 31, 2004
    Publication date: March 8, 2007
    Inventors: Chang Han, Hae Kim, Ju Kim, Dong Ryu
  • Publication number: 20060275661
    Abstract: Disclosed is an electrochemical device, which comprises: (A) a binder comprising polymer particles obtained from the polymerization of: (a) 20-70 parts by weight of a (meth)acrylic acid ester monomer; (b) 20-60 parts by weight of a vinyl monomer; and (c) 0.01-30 parts by weight of an unsaturated carboxylic acid monomer, based on 100 parts by weight of a binder polymer; and (B) electrochemical cells stacked multiply by using the binder, wherein the binder allows electrode active material particles in an electrode to be fixed and interconnected among themselves and between the electrode active material and a collector, and the electrode and a separator that is in contact with the electrode are bonded to each other by way of hot fusion. The binder is also disclosed. The binder has excellent adhesion and thermal bonding characteristics, and thus is useful for an electrochemical device comprising multiply stacked electrochemical cells, and can improve the overall quality of a battery.
    Type: Application
    Filed: May 17, 2006
    Publication date: December 7, 2006
    Inventors: Byoung Kim, Dong Ryu, Ju Kim, Chang Han, Eun Goh, Hyang Lee
  • Publication number: 20060257739
    Abstract: Disclosed is a binder, which comprises polymer particles obtained by polymerization of: (a) 1˜80 parts by weight of a (meth)acrylic acid ester monomer; (b) 1˜20 parts by weight of an unsaturated carboxylic acid monomer; and (c) 0.001˜40 parts by weight of a vinyl monomer, based on 100 parts by weight of the binder polymer, and which allows electrode active material particles capable of lithium intercalation/deintercalation to be fixed and linked among themselves, and between the particles and a collector. An electrode comprising the binder, and a lithium secondary battery having the electrode are also disclosed. Further, a method for evaluating interrelation between wettability of a binder to an electrolyte and quality of a battery comprising the binder is disclosed. The binder shows excellent adhesion as well as excellent wettability to an electrolyte, and thus can improve rate characteristics and lifespan characteristics of a battery, when used in an electrode for a lithium secondary battery.
    Type: Application
    Filed: April 7, 2006
    Publication date: November 16, 2006
    Inventors: Dong Ryu, Cha Ku, Chang Han, Byoung Kim, Ju Kim, Chang Koo
  • Publication number: 20060248465
    Abstract: A method and mobile communication terminal for storing phone book data in the mobile communication terminal are provided in which phone book data can be registered group-by-group, where a predetermined is selected group among the registered groups in response to a user's request, and at least one of phone book data stored in the selected group is moved and stored into a group assigned by the user when a phone book data movement request is input by the user. Accordingly, a plurality of phone book data stored in a predetermined group among phone book data stored in a group basis in a mobile communication terminal can be easily moved and stored into another group. In addition, since the user can easily store phone book data whose group is not identified in a predetermined group, user convenience improves.
    Type: Application
    Filed: March 3, 2006
    Publication date: November 2, 2006
    Inventors: Shin-Dong Ryu, Dong-Wook Kwon
  • Publication number: 20060216728
    Abstract: Provided is a method of fabricating a biochip using microspotting, the method including immobilizing probes or probe-attached beads on a surface of a substrate using an adhesive.
    Type: Application
    Filed: December 13, 2005
    Publication date: September 28, 2006
    Inventors: Youngduk Kim, Eunjeong Lee, Dong Ryu, Jae Kim, Jaeyoung Jang
  • Publication number: 20060173043
    Abstract: The present invention is related to novel use of 2-oxo-heterocyclic compounds having anticancer activity and the process for preparing them and a pharmaceutical composition comprising the same.
    Type: Application
    Filed: July 15, 2004
    Publication date: August 3, 2006
    Inventors: Gyoon Han, Hwan Kim, Song Park, Chang-Woo Lee, Sang Han, Ki Lee, Yung Kho, Jin Yang, Bum Park, Hyang Lee, Jeung Han, Dong Ryu, Jin Lee, Tae Chun, Yong Kim, Hee Lee, Bong Lee, Jeom Kim, Ji Kim, Kyunga Yu, Sun Kim
  • Publication number: 20060111152
    Abstract: An apparatus and method are provided for inputting a character in a mobile communication terminal which displays character items representing types of characters on a screen of the mobile communication terminal in order for a user to select a type of character to be input in a character input mode. The apparatus and method comprise mapping each of the character items to each of predetermined keys included in a keypad and displaying mapped items, when the mobile communication terminal enters the character input mode; and setting predetermined characters to be display characters for displaying on the screen when a predetermined key signal is input while a preset key signal is input, the predetermined characters being included in a character item corresponding to the predetermined key signal, the predetermined key signal corresponding to one of the displayed character items.
    Type: Application
    Filed: March 30, 2005
    Publication date: May 25, 2006
    Inventor: Shin-Dong Ryu
  • Publication number: 20060058462
    Abstract: Disclosed is a binder comprising composite polymer particles having a structure formed of two or more phases different in terms of cell property, adhesive strength and/or coating property. The binder provides excellent cell property, adhesive strength and coating property, and thus the binder is used in an electrode of a lithium secondary battery to improve the cell performance.
    Type: Application
    Filed: March 2, 2004
    Publication date: March 16, 2006
    Inventors: Hae Kim, Dong Ryu, Ju Kim, Chang Han
  • Publication number: 20050001299
    Abstract: Disclosed is a substrate for semiconductor package and a wire bonding method using thereof. The substrate is provided with at least one reference mark on its surface to check a loading position and a shift state of a solder mask. The reference mark is composed of a combination of a reference pattern and a solder mask opening and is positioned in any location on an outer peripheral edge of a die attachment region. The reference mark may take various shapes. A method for checking a solder mask shift using the reference mark includes comparing a design value of the reference pattern and the solder mask opening with the reference pattern and the solder mask opening, which are formed in an actual material. After the solder mask shift is calculated, a wire bonding coordinate is newly constructed in consideration of the solder mask shift. This minimizes the wire bonding error.
    Type: Application
    Filed: July 1, 2004
    Publication date: January 6, 2005
    Applicant: Amkor Technology, Inc.
    Inventors: Dong Ryu, Doo Park, Ho Kim