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).
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Patent number: 9228162Abstract: 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: GrantFiled: November 1, 2013Date of Patent: January 5, 2016Assignee: DONG-A TEACHING MATERIALS CO., LTD.Inventors: Hak Jae Kim, Han Shin Jung
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Patent number: 9109298Abstract: 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: GrantFiled: February 14, 2012Date of Patent: August 18, 2015Assignee: DONG-A TEACHING MATERIALS CO., LTD.Inventors: Hak-Jae Kim, Han-Shin Jung
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Patent number: 9074068Abstract: 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: GrantFiled: January 4, 2011Date of Patent: July 7, 2015Assignee: DONG-A TEACHING MATERIALS CO., LTD.Inventors: Hak-Jae Kim, Han-Shin Jung, Ji Eun Lee
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Patent number: 9068079Abstract: 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: GrantFiled: January 5, 2011Date of Patent: June 30, 2015Assignee: DONG-A TEACHING MATERIALS CO., LTD.Inventors: Hak-Jae Kim, Han-Shin Jung, Ji Eun Lee
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Publication number: 20140135249Abstract: 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: ApplicationFiled: November 1, 2013Publication date: May 15, 2014Applicant: Dong-A Teaching Materials Co., Ltd.Inventors: Hak Jae KIM, Han Shin JUNG
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Patent number: 8425675Abstract: 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: GrantFiled: June 9, 2010Date of Patent: April 23, 2013Assignee: Dong-A Teaching Materials Co., Ltd.Inventors: Chung Kyung Kim, Han-Shin Jung
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Publication number: 20120237413Abstract: 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: ApplicationFiled: February 14, 2012Publication date: September 20, 2012Applicant: DONG-A TEACHING MATERIALS CO., LTDInventors: Hak-Jae KIM, Han-Shin JUNG
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Publication number: 20110303118Abstract: 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: ApplicationFiled: June 9, 2010Publication date: December 15, 2011Applicant: Dong-A Teaching Materials Co., Ltd.Inventors: Chung Kyung Kim, Han-shin Jung
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Publication number: 20110171470Abstract: 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: ApplicationFiled: January 4, 2011Publication date: July 14, 2011Applicant: DONG-A TEACHING MATERIALS CO., LTD.Inventors: Hak-Jae KIM, Han-Shin Jung, Ji Eun Lee
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Publication number: 20110168054Abstract: 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: ApplicationFiled: January 5, 2011Publication date: July 14, 2011Applicant: DONG-A TEACHING MATERIALS CO., LTD.Inventors: Hak-Jae Kim, Han-Shin Jung, Ji Eun Lee
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Patent number: 7682437Abstract: 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: GrantFiled: May 21, 2009Date of Patent: March 23, 2010Assignee: Dong-A Teaching Materials Co., Ltd.Inventors: Hak-Jae Kim, Han-Shin Jung
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Publication number: 20090293767Abstract: 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: ApplicationFiled: May 21, 2009Publication date: December 3, 2009Applicant: DONG-A TEACHING MATERIALS CO., LTD.Inventors: HAK-JAE KIM, HAN-SHIN JUNG
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Publication number: 20030230642Abstract: 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: ApplicationFiled: March 31, 2003Publication date: December 18, 2003Inventor: Han-Shin Jung
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Publication number: 20020132879Abstract: 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: ApplicationFiled: February 21, 2002Publication date: September 19, 2002Inventor: Han-Shin Jung
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Publication number: 20010009934Abstract: 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: ApplicationFiled: January 17, 2001Publication date: July 26, 2001Applicant: Dong-A Pencil Co., Ltd.Inventor: Han-Shin Jung