Patents by Inventor Han-Shin Jung

Han-Shin Jung 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: 9228162
    Abstract: The present invention relates to a transparent solid cleaning agent that is convenient to carry because it has solid pen shape, and has no concern of contents flowing because it is a solid. According to one aspect of the invention, a transparent solid cleaning agent comprising 10 to 70 wt % of gel forming material including alkali metal salt or ammonium salt of C8-36 aliphatic carboxylic acid, 2 to 30 wt % of a transparency agent, 2 to 30 wt % of a subsidiary transparency agent, 0.1 to 10 wt % of orange oil, and 0.5 to 20 wt % of anionic surfactant is provided. The transparent solid cleaning agent according to the present invention is convenient to carry because it has a solid pen shape, has no concern of contents flowing because it is a solid, prevents collapse or bending, and has an excellent sense of beauty because the contents are transparent.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: January 5, 2016
    Assignee: DONG-A TEACHING MATERIALS CO., LTD.
    Inventors: Hak Jae Kim, Han Shin Jung
  • Patent number: 9109298
    Abstract: Provided is a new-concept crystal growing ornament that may change in size due to a recrystallization phenomenon by supplying a growth liquid, thereby reducing repugnance or an artificial impression and arousing curiosity or interest. The crystal growing ornament includes a basic material made of a porous material and formed in a predetermined shape; a growth liquid formed to be absorbed into the basic material and evaporating after being absorbed into the basic material to generate a recrystallization phenomenon; a growth liquid supply unit connected to the basic material and formed to supply the growth liquid to the basic material after receiving the growth liquid; and a crystal growing body integrally formed outside the basic material due to the recrystallization phenomenon of the growth liquid.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: August 18, 2015
    Assignee: DONG-A TEACHING MATERIALS CO., LTD.
    Inventors: Hak-Jae Kim, Han-Shin Jung
  • Patent number: 9074068
    Abstract: A bar type clay member for craft includes a body formed by heating and melting 50 wt % to 80 wt % of wax, adding 10 wt % to 40 wt % of body pigment and 1 wt % to 10 wt % of a colorant to the melted wax, and then melting and dispersing the body pigment and colorant in the wax, wherein the body has a thickness ranging from 0.3 mm to 10 mm and has a bar-like shape.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: July 7, 2015
    Assignee: DONG-A TEACHING MATERIALS CO., LTD.
    Inventors: Hak-Jae Kim, Han-Shin Jung, Ji Eun Lee
  • Patent number: 9068079
    Abstract: Bar type clay for craft including 50 wt % to 80 wt % of wax, 10 wt % to 40 wt % of body pigment, and 1 wt % to 10 wt % of a colorant, and formed to have a bar-like shape is provided.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: June 30, 2015
    Assignee: DONG-A TEACHING MATERIALS CO., LTD.
    Inventors: Hak-Jae Kim, Han-Shin Jung, Ji Eun Lee
  • Publication number: 20140135249
    Abstract: The present invention relates to a transparent solid cleaning agent that is convenient to carry because it has solid pen shape, and has no concern of contents flowing because it is a solid. According to one aspect of the invention, a transparent solid cleaning agent comprising 10 to 70 wt % of gel forming material including alkali metal salt or ammonium salt of C8-36 aliphatic carboxylic acid, 2 to 30 wt % of a transparency agent, 2 to 30 wt % of a subsidiary transparency agent, 0.1 to 10 wt % of orange oil, and 0.5 to 20 wt % of anionic surfactant is provided. The transparent solid cleaning agent according to the present invention is convenient to carry because it has a solid pen shape, has no concern of contents flowing because it is a solid, prevents collapse or bending, and has an excellent sense of beauty because the contents are transparent.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 15, 2014
    Applicant: Dong-A Teaching Materials Co., Ltd.
    Inventors: Hak Jae KIM, Han Shin JUNG
  • Patent number: 8425675
    Abstract: A recrystallization type of ink composition comprises a solvent, a crystalline material, and a colorant. When the recrystallization type of ink composition is applied to a non-absorption surface such as a whiteboard, a glass surface, and a plastic surface, it is recrystallized to provide a visual effect of a metal sense at the applied part.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: April 23, 2013
    Assignee: Dong-A Teaching Materials Co., Ltd.
    Inventors: Chung Kyung Kim, Han-Shin Jung
  • Publication number: 20120237413
    Abstract: Provided is a new-concept crystal growing ornament that may change in size due to a recrystallization phenomenon by supplying a growth liquid, thereby reducing repugnance or an artificial impression and arousing curiosity or interest. The crystal growing ornament includes a basic material made of a porous material and formed in a predetermined shape; a growth liquid formed to be absorbed into the basic material and evaporating after being absorbed into the basic material to generate a recrystallization phenomenon; a growth liquid supply unit connected to the basic material and formed to supply the growth liquid to the basic material after receiving the growth liquid; and a crystal growing body integrally formed outside the basic material due to the recrystallization phenomenon of the growth liquid.
    Type: Application
    Filed: February 14, 2012
    Publication date: September 20, 2012
    Applicant: DONG-A TEACHING MATERIALS CO., LTD
    Inventors: Hak-Jae KIM, Han-Shin JUNG
  • Publication number: 20110303118
    Abstract: A recrystallization type of ink composition comprises a solvent, a crystalline material, and a colorant. When the recrystallization type of ink composition is applied to a non-absorption surface such as a whiteboard, a glass surface, and a plastic surface, it is recrystallized to provide a visual effect of a metal sense at the applied part.
    Type: Application
    Filed: June 9, 2010
    Publication date: December 15, 2011
    Applicant: Dong-A Teaching Materials Co., Ltd.
    Inventors: Chung Kyung Kim, Han-shin Jung
  • Publication number: 20110171470
    Abstract: A bar type clay member for craft includes a body formed by heating and melting 50 wt % to 80 wt % of wax, adding 10 wt % to 40 wt % of body pigment and 1 wt % to 10 wt % of a colorant to the melted wax, and then melting and dispersing the body pigment and colorant in the wax, wherein the body has a thickness ranging from 0.3 mm to 10 mm and has a bar-like shape.
    Type: Application
    Filed: January 4, 2011
    Publication date: July 14, 2011
    Applicant: DONG-A TEACHING MATERIALS CO., LTD.
    Inventors: Hak-Jae KIM, Han-Shin Jung, Ji Eun Lee
  • Publication number: 20110168054
    Abstract: Bar type clay for craft including 50 wt % to 80 wt % of wax, 10 wt % to 40 wt % of body pigment, and 1 wt % to 10 wt % of a colorant, and formed to have a bar-like shape is provided.
    Type: Application
    Filed: January 5, 2011
    Publication date: July 14, 2011
    Applicant: DONG-A TEACHING MATERIALS CO., LTD.
    Inventors: Hak-Jae Kim, Han-Shin Jung, Ji Eun Lee
  • Patent number: 7682437
    Abstract: There is provided a transparent solid marker that has high bending strength and low writing resistance as stick-formed goods, is difficult to break or bend, generates few remnants while coating is carried out, and does not cause spreading of a writing surface even if it is coated on a surface which is written on by oily or aqueous writing implements. There is provided a transparent solid marker that is obtained by heating and mixing a composition including a gel forming material that includes an alkali metal salt or ammonium salt of an aliphatic carboxylic acid having 8 to 36 carbon atoms, a transparency agent, a subsidiary transparency agent, hydrogenated glucose syrup, a basic pigment, and oil, and cooling it.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: March 23, 2010
    Assignee: Dong-A Teaching Materials Co., Ltd.
    Inventors: Hak-Jae Kim, Han-Shin Jung
  • Publication number: 20090293767
    Abstract: There is provided a transparent solid marker that has high bending strength and low writing resistance as stick-formed goods, is difficult to break or bend, generates few remnants while coating is carried out, and does not cause spreading of a writing surface even if it is coated on a surface which is written on by oily or aqueous writing implements. There is provided a transparent solid marker that is obtained by heating and mixing a composition including a gel forming material that includes an alkali metal salt or ammonium salt of an aliphatic carboxylic acid having 8 to 36 carbon atoms, a transparency agent, a subsidiary transparency agent, hydrogenated glucose syrup, a basic pigment, and oil, and cooling it.
    Type: Application
    Filed: May 21, 2009
    Publication date: December 3, 2009
    Applicant: DONG-A TEACHING MATERIALS CO., LTD.
    Inventors: HAK-JAE KIM, HAN-SHIN JUNG
  • Publication number: 20030230642
    Abstract: Disclosed is a sprayer with removable ink to be sprayed onto the non-absorptive surface of a car or a glass when it is needed to make various designs thereon, and removed when it is no longer required. The sprayer includes a barrel-shaped pressure vessel, a spray nozzle mounted at the top of the pressure vessel, an absorption tube connected to the spray nozzle while being placed within the pressure vessel, a push button placed over the pressure vessel to open or close the spray nozzle, a gas charged into the pressure under a predetermined degree of pressure, and a removal ink charged into the pressure vessel while containing a solvent, a resin dissolved in the solvent, an exfoliation agent, and a coloring agent. The amount of the solvent is established to be 10-80 wt %, the amount of the exfoliation agent to be 0.5-20 wt % and the amount of the coloring agent to be 1-50 wt %.
    Type: Application
    Filed: March 31, 2003
    Publication date: December 18, 2003
    Inventor: Han-Shin Jung
  • Publication number: 20020132879
    Abstract: A tacky ink includes a solvent, a coloring agent, and additives with a tackiness agent. The tackiness agent is to impart tackiness to the ink composition. The tackiness agent is polyethylene oxide with the following structural formula: HO—(CH2CH2O)n—CH2CH2OH where n is ranged from 400 to 1,000,000.
    Type: Application
    Filed: February 21, 2002
    Publication date: September 19, 2002
    Inventor: Han-Shin Jung
  • Publication number: 20010009934
    Abstract: A tacky ink includes a solvent, a coloring agent, and additives with a tackiness agent. The tackiness agent is to impart tackiness to the ink composition. The tackiness agent is polyethylene oxide with the following structural formula: HO—(CH2CH2O)n—CH2CH2OH where n is ranged from 400 to 1,000,000.
    Type: Application
    Filed: January 17, 2001
    Publication date: July 26, 2001
    Applicant: Dong-A Pencil Co., Ltd.
    Inventor: Han-Shin Jung