Patents by Inventor Soon-Jong Hahn
Soon-Jong Hahn 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: 8309110Abstract: The present invention relates to antibacterial and antifungal compositions having 3-isothiazolone and polyhexamethyleneguanidine phosphate. These new antiseptic compositions demonstrate a superior degree of effectiveness on a wide spectrum of pathogens. The present invention also relates to the use of these new antiseptic compositions to kill and/or restrain the growth of bacteria and fungi in a variety of applications.Type: GrantFiled: September 2, 2004Date of Patent: November 13, 2012Assignee: SK Chemicals Co., Ltd.Inventors: Ki-Seung Choi, Jin-Man Kim, Jeong-Ho Park, Myung-Ho Cho, Soon-Jong Hahn
-
Patent number: 7734501Abstract: The present invention relates, in general, to a method of selling commodities and sharing sales profits using the Internet and, more particularly, to a method of selling commodities and sharing sales profits using the Internet, which not only allows a commodity purchaser to give a predetermined deposit to a commodity seller, to purchase commodities at low prices, and to be issued both a dividend and an award for contribution previously stipulated by the commodity seller, depending on the contribution level of the amount spent purchasing commodities and the deposit after a predetermined period has elapsed, but also allows the commodity seller to finance a business using funds obtained on the basis of the credit thereof, thus maintaining continuous business relations between the commodity purchaser and the commodity seller.Type: GrantFiled: February 24, 2004Date of Patent: June 8, 2010Assignee: SK Chemicals Co., Ltd.Inventors: Soon-Jong Hahn, Shin Hahn
-
Patent number: 7329539Abstract: The present invention relates to a bioreactor for sewage and wastewater treatment, which is capable of agitating and supplying oxygen simultaneously. A bioreactor of the present invention, comprises a culture drum in which microorganisms are cultured; a supplier for supplying a culture solution, and organic and inorganic media to the culture drum, the supplier including a supply tube connected to an upper side of the culture drum, and a pump connected to the supply tube for supplying the culture solution to the culture drum; an agitator for agitating the culture solution by spraying air into the culture solution in the culture drum, the air being supplied from an air blower; and a thermostatic controller for controlling a temperature of the culture solution and disinfecting the interior of the culture drum.Type: GrantFiled: June 3, 2002Date of Patent: February 12, 2008Assignee: SK Chemicals Co., Ltd.Inventors: Wan-Pyo Hong, Jin-Man Kim, Ki-Seung Choi, Hi-Weon Jung, Soon-Jong Hahn, Jong-Taek Kim
-
Publication number: 20070136074Abstract: The present invention relates, in general, to a method of selling commodities and sharing sales profits using the Internet and, more particularly, to a method of selling commodities and sharing sales profits using the Internet, which not only allows a commodity purchaser to give a predetermined deposit to a commodity seller, to purchase commodities at low prices, and to be issued both a dividend and an award for contribution previously stipulated by the commodity seller, depending on the contribution level of the amount spent purchasing commodities and the deposit after a predetermined period has elapsed, but also allows the commodity seller to finance a business using funds obtained on the basis of the credit thereof, thus maintaining continuous business relations between the commodity purchaser and the commodity seller.Type: ApplicationFiled: February 24, 2004Publication date: June 14, 2007Inventors: Soon-Jong Hahn, Shin Hahn
-
Patent number: 7108741Abstract: A novel antifouling paint composition is disclosed. The antifouling paint composition comprises a resin of 5 to 20 wt %, a solvent of 3 to 30 wt %; a polyhexamethyleneguanidine salt of the following chemical formula 1 of 0.05 to 20 wt %, a pigment of 1 to 50 wt %; and cuprous oxide of 22 to 75 wt % and/or zinc pyrithione of the following chemical formula 2 of 0.05 to 20 wt %; wherein in chemical formula 1, X can be the same or different, and at least one of X is an inorganic acid salt or an organic acid salt; R1 can be the same or different, and is a linear or branched alkyl group containing from 1 to 20 carbon atoms, a phenyl group, a chlorophenyl group, a bromophenyl group, an iodophenyl group, a benzyl group, a chlorobenzyl group, a bromobenzyl group, a iodobenzyl group, a phenethyl group, a naphthyl group or a hydrogen; and n is an integer of 1 or more.Type: GrantFiled: October 23, 2003Date of Patent: September 19, 2006Assignee: SK Chemicals Co., Ltd.Inventors: Kyung-Wook Yang, Nam-Sik Park, Ki-Seung Choi, Soon-Jong Hahn, Jin-Man Kim, Wan-Pyo Hong
-
Publication number: 20060137566Abstract: A novel antifouling paint composition is disclosed. The antifouling paint composition comprises a resin of 5 to 20 weight %; a solvent of 3 to 30 weight %; polyhexamethyleneguanidine salt of the following chemical formula 1 of 0.05 to 20 weight %; a pigment of 1 to 50 weight %; and cuprous oxide of 22 to 75 weight % and/or zinc pyrithione of the following chemical formula 2 of 0.05 to 20 weight %. [Chemical formula 1] [Chemical formula 2] In chemical formula 1, at least one of X is an inorganic acid salt or an organic acid salt; R1 is an alkyl group, a phenyl group, a benzyl group, a phenethyl group, a naphthyl group or hydrogen, and n is an integer of 1 or more.Type: ApplicationFiled: October 23, 2003Publication date: June 29, 2006Inventors: Kyung-Wook Yang, Nam-Sik Park, Ki-Seung Choi, Soon-Jong Hahn, Jin-Man Kim, Wan-Pyo Hong
-
Publication number: 20050101648Abstract: The present invention relates to antibacterial and antifungal compositions having 3-isothiazolone and polyhexamethyleneguanidine phosphate. These new antiseptic compositions demonstrate a superior degree of effectiveness on a wide spectrum of pathogens. The present invention also relates to the use of these new antiseptic compositions to kill and/or restrain the growth of bacteria and fungi in a variety of applications.Type: ApplicationFiled: September 2, 2004Publication date: May 12, 2005Inventors: Ki-Seung Choi, Jin-Man Kim, Jeong-Ho Park, Myung-Ho Cho, Soon-Jong Hahn
-
Publication number: 20030175948Abstract: The present invention relates to a bioreactor for sewage and wastewater treatment, which is capable of agitating and supplying oxygen simultaneously. A bioreactor of the present invention, comprises a culture drum in which microorganisms are cultured; a supplier for supplying a culture solution, and organic and inorganic media to the culture drum, the supplier including a supply tube connected to an upper side of the culture drum, and a pump connected to the supply tube for supplying the culture solution to the culture drum; an agitator for agitating the culture solution by spraying air into the culture solution in the culture drum, the air being supplied from an air blower; and a thermostatic controller for controlling a temperature of the culture solution and disinfecting the interior of the culture drum.Type: ApplicationFiled: February 3, 2003Publication date: September 18, 2003Inventors: Wan-Pyo Hong, Jin-Man Kim, Ki-Seung Choi, Hi-weon Jung, Soon-Jong Hahn, Jong-Taek Kim
-
Patent number: 6566382Abstract: The present invention relates to isothiazolone-containing compositions comprising a) 3-isothiazolone compounds; b) a metal nitrate; c) magnesium chloride; d) at least one compound selected from the group consisting of iodic acid, periodic acid, an iodate salt, and a periodate salt; e) chlorite salts; and f) solvents. The invention further provides a method for stabilizing isothiazolone-containing compositions by inhibiting precipitation of by-products formed during production and precipitation of the compounds formed during storage. The compositions of the invention are useful for suppressing the growth of microorganisms.Type: GrantFiled: November 27, 2001Date of Patent: May 20, 2003Assignees: Lonza Inc., SK Chemicals Co., Ltd.Inventors: Miron Gerard Still, Wan Pyo Hong, Jin Man Kim, Ki Seung Choi, Jung Ho Park, Jae Min Ha, Hi Weon Jung, Soon Jong Hahn
-
Patent number: 6534076Abstract: The present invention relates to stabilized isothiazolone compositions and methods of stabilization of isothiazolone, more particularly, to stabilized isothiazolone solutions comprising (a) an isothiazolone composition, (b) sulfuric acid, and (c) solvent.Type: GrantFiled: June 5, 2000Date of Patent: March 18, 2003Assignee: SK ChemicalsInventors: Soon-Jong Hahn, Jin-Man Kim, Ki-Seung Choi, Seung-Hwan Kim, Jung-Ho Park, Jae-Min Ha, Gi-Bae Kim
-
Patent number: 6506904Abstract: A method of preparing N,N-disubstituted 3,3′-dithiodipropionamide of formula (2) is provided. In the method, 3-mercaptopropi-onamide of formula (4) reacts with an aqueous solution of amine to prepare N-substituted-3-mercaptopropionamide of formula (3) and N-substituted-3-mercaptopropionamide reacts with an aqueous solution of hydrogen peroxide. In addition, a method of preparing substituted 3-isothiazolone is provided.Type: GrantFiled: May 21, 2002Date of Patent: January 14, 2003Assignee: SK Chemicals Co., Ltd.Inventors: Seung-Hwan Kim, Jeong-Ho Park, Jin-Man Kim, Soon-Jong Hahn, Ki-Seong Choi, Myung-Ho Cho
-
Publication number: 20030004198Abstract: The present invention relates to isothiazolone-containing compositions comprising a) 3-isothiazolone compounds; b) a metal nitrate; c) magnesium chloride; d) at least one compound selected from the group consisting of iodic acid, periodic acid, an iodate salt, and a periodate salt; e) chlorite salts; and f) solvents. The invention further provides a method for stabilizing isothiazolone-containing compositions by inhibiting precipitation of by-products formed during production and precipitation of the compounds formed during storage. The compositions of the invention are useful for suppressing the growth of microorganisms.Type: ApplicationFiled: November 27, 2001Publication date: January 2, 2003Applicant: LONZA INC.Inventors: Miron Gerard Still, Wan Pyo Hong, Jin Man Kim, Ki Seung Choi, Jung Ho Park, Jae Min Ha, Hi Weon Jung, Soon Jong Hahn
-
Patent number: 6479701Abstract: A method of preparing N,N-disubstituted-3,3′-dithiodipropionamide of formula (2) is provided. In the method, 3-mercaptopropionamide of formula (4) reacts with an aqueous solution of amine to prepare N-substituted-3-mercaptopropionamide of formula (3) and N-substituted-3-mercaptopropionamide reacts with an aqueous solution of hydrogen peroxide. In addition, a method of preparing substituted 3-isothiazolone is provided.Type: GrantFiled: September 28, 2001Date of Patent: November 12, 2002Assignee: SK Chemicals Co., Ltd.Inventors: Seung-Hwan Kim, Jeong-Ho Park, Jin-Man Kim, Soon-Jong Hahn, Ki-Seung Choi, Myung-Ho Cho
-
Patent number: 6399827Abstract: Disclosed is quaternary ammonium phosphate compound having formula (1) and which has an anticorrosive and a biocidal efffect to have a capability of preventing corrosion of various metals including corrosive metal substances, e.g. carbon steels, iron casts, stain steels, coppers, tinning steel plates or alumina and an efficient method of preparing the same. In formula (1), R1 is a straight or a branched alkyl or aryl radical with 1 to 27 carbon atom(s) free of —OH group and may contain hereto-atoms, and both R2 and R3 are methyl groups or R2 and R3 are combined to form a heterocyclic compound with 4 to 6 of carbon atoms containing oxygen and nitrogen.Type: GrantFiled: June 12, 2000Date of Patent: June 4, 2002Assignee: SK ChemicalsInventors: Soon-Jong Hahn, Jeong-Joo Shin, Jae-Min Ha, Chang-Mook Cho, Ki-Man Park, Kwang-Hee Yoo, Dong-Jin Choi, Jun-Weon Park
-
Publication number: 20020065251Abstract: Disclosed is a quaternary ammonium phosphate compound having formula (1) and which has an anticorrosive and a biocidal effect to have a capability of preventing corrosion of various metals including corrosive metal substances, e.g. carbon steels, iron casts, stain steels, coppers, tinning steel plates or alumina and an efficient method of preparing the same. In formula (1), R1 is a straight or a branched alkyl or aryl radical with 1 to 27 carbon atom(s) free of —OH group and may contain hetero-atoms, and both R2 and R3 are methyl groups or R2 and R3 are combined to form a heterocyclic compound with 4 to 6 of carbon atoms containing oxygen and nitrogen.Type: ApplicationFiled: June 12, 2000Publication date: May 30, 2002Inventors: SOON-JONG HAHN, JEONG-JOO SHIN, JAE-MIN HA, CHANG-MOOK CHO, KI-MAN PARK, KWANG-HEE YOO, DONG-JIN CHOI, JUN-WEON PARK
-
Patent number: 6376680Abstract: An impurity-free biologically active mixture of 2-methyl-4-isothiazolin-3-one and 5-chloro-2-methyl-4-isothiazolin-3-one, which is useful as a biocide in various products, can be prepared by reacting N-methyl-3-mercaptopropionamide or N,N′-dimethyl-3,3′-dithiodipropionamide or a mixture thereof dissolved in a first organic solvent with sulfuryl chloride dissolved in a second organic solvent, which is different from the first organic solvent, at a temperature ranging from 5 to 20° C. and, optionally, centrifuging the resulting product mixture to obtain the desired mixture substantially free of 4,5-dichloro-2-methyl-4-isothiazolin-3-one impurity.Type: GrantFiled: May 24, 2001Date of Patent: April 23, 2002Assignee: SK Chemicals Co., Ltd.Inventors: Jin-Man Kim, Jin-Soo Lim, Seung-Hwan Kim, Soon-Jong Hahn
-
Patent number: 6072056Abstract: A method of preparing water free isothiazolone having the steps of obtaining an extract from an aqueous solution containing isothiazolone by using a halogenationed hydrocarbon or nitrated hydrocarbon, removing the halogenationed hydrocarbon or nitrated hydrocarbon from the extract, and adding a organic solvent such as glycol, alcohol and glycol ether provides a water free isothiazolone having a high stability without forming wastes and harmful gas.Type: GrantFiled: June 16, 1998Date of Patent: June 6, 2000Assignee: SK ChemicalInventors: Seung-Hwan Kim, Jeong-Ho Park, Jin-Man Kim, Ki-Seung Choi, Myung-Ho Cho, Soon-Jong Hahn