Patents by Inventor Sungtae Hong
Sungtae Hong 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: 8361400Abstract: An object of the present invention is to provide a honeycomb structural body which is low in pressure loss and can prolong a period up to a regenerating process. The present invention is directed to a columnar honeycomb structural body comprising a large number of through holes placed in parallel with one another in a length direction with wall portion interposed therebetween, wherein: each of the through holes has one of ends sealed; one end face of the through hole differs in opening area from the other end face thereof; a ceramic material which constitutes the wall portion has an average pore diameter in a range from 5 to 30 ?m; and the rate of capacity of micro pores each having a pore diameter two or more times larger than the average pore diameter is set to 30% or less of the capacity of the entire micro pores.Type: GrantFiled: September 23, 2011Date of Patent: January 29, 2013Assignee: Ibiden Co., Ltd.Inventors: Teruo Komori, Kazushige Ohno, Sungtae Hong
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Patent number: 8246710Abstract: An object of the present invention is to provide a honeycomb structural body with a long service life, which can reduce a pressure loss to a low level upon collecting particulates and maintain the pressure loss at the low level for a long time even after regenerating processes. The honeycomb structural body includes a columnar porous ceramic block in which a large number of through holes are placed in parallel with one another in the length direction with a wall portion interposed therebetween.Type: GrantFiled: June 7, 2004Date of Patent: August 21, 2012Assignee: Ibiden Co., Ltd.Inventors: Teruo Komori, Kazushige Ohno, Sungtae Hong, Yukio Oshimi
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Publication number: 20120031062Abstract: An object of the present invention is to provide a honeycomb structural body which is low in pressure loss and can prolong a period up to a regenerating process. The present invention is directed to a columnar honeycomb structural body comprising a large number of through holes placed in parallel with one another in a length direction with wall portion interposed therebetween, wherein: each of the through holes has one of ends sealed; one end face of the through hole differs in opening area from the other end face thereof; a ceramic material which constitutes the wall portion has an average pore diameter in a range from 5 to 30 ?m; and the rate of capacity of micro pores each having a pore diameter two or more times larger than the average pore diameter is set to 30% or less of the capacity of the entire micro pores.Type: ApplicationFiled: September 23, 2011Publication date: February 9, 2012Applicant: IBIDEN CO., LTD.Inventors: Teruo KOMORI, Kazushige OHNO, Sungtae HONG
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Patent number: 8062603Abstract: An object of the present invention is to provide a honeycomb structural body which is low in pressure loss and can prolong a period up to a regenerating process. The present invention is directed to a columnar honeycomb structural body comprising a large number of through holes placed in parallel with one another in a length direction with wall portion interposed therebetween, wherein: each of the through holes has one of ends sealed; one end face of the through hole differs in opening area from the other end face thereof; a ceramic material which constitutes the wall portion has an average pore diameter in a range from 5 to 30 ?m; and the rate of capacity of micro pores each having a pore diameter two or more times larger than the average pore diameter is set to 30% or less of the capacity of the entire micro pores.Type: GrantFiled: June 23, 2004Date of Patent: November 22, 2011Assignee: Ibiden Co., Ltd.Inventors: Teruo Komori, Kazushige Ohno, Sungtae Hong
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Patent number: 8012234Abstract: A honeycomb structural body includes a columnar honeycomb structural body having large-capacity through holes and small-capacity through holes extending in parallel in a length direction of the columnar structural body. The large-capacity through holes and the small-capacity through holes have a polygonal shape in a cross section perpendicular to the length direction, and the large-capacity through holes and the small-capacity through holes have R-chamfered corner portions or C-chamfered corner portions in the cross section perpendicular to the length direction.Type: GrantFiled: June 21, 2010Date of Patent: September 6, 2011Assignee: Ibiden Co., Ltd.Inventors: Teruo Komori, Kazushige Ohno, Sungtae Hong, Yukio Oshimi
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Patent number: 7857885Abstract: A column shaped filter having a honeycomb structure including a number of through holes extending parallel with one another in the length direction with wall portion interposed therebetween. The through holes are constituted by large-capacity through holes having a relatively larger cross-sectional area in the cross section perpendicular to the length direction and small-capacity through holes having a relatively smaller cross-sectional area in the cross section. The numbers of the two types of through holes are substantially set to the same. The large-capacity through holes are sealed at one end of the filter, while the small-capacity through holes are sealed at the other end of the filter. The large-capacity and small-capacity through holes have a ratio of partition wall length, ?, and an aperture ratio, ?, and ? and ? satisfy ??(20/9)?2+1 (where 0<??1.5 and 1<??6).Type: GrantFiled: June 11, 2007Date of Patent: December 28, 2010Assignee: Ibiden Co., Ltd.Inventors: Sungtae Hong, Teruo Komori, Kazushige Ohno
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Publication number: 20100255250Abstract: A honeycomb structural body includes a columnar honeycomb structural body having large-capacity through holes and small-capacity through holes extending in parallel in a length direction of the columnar structural body. The large-capacity through holes and the small-capacity through holes have a polygonal shape in a cross section perpendicular to the length direction, and the large-capacity through holes and the small-capacity through holes have R-chamfered corner portions or C-chamfered corner portions in the cross section perpendicular to the length direction.Type: ApplicationFiled: June 21, 2010Publication date: October 7, 2010Applicant: IBIDEN CO., LTD.Inventors: Teruo KOMORI, Kazushige OHNO, Sungtae HONG, Yukio OSHIMI
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Patent number: 7766991Abstract: An object of the present invention is to provide a honeycomb structural body (filter) which has a low pressure loss upon collecting particulates, makes it possible to deposit a great amount of particulates and ashes, and is less likely to produce cracks.Type: GrantFiled: December 4, 2007Date of Patent: August 3, 2010Assignee: Ibiden Co., Ltd.Inventors: Teruo Komori, Kazushige Ohno, Sungtae Hong, Yukio Oshimi
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Patent number: 7611764Abstract: It is to provide a honeycomb structural body having an excellent durability, which is large in the catching amount of particulates per unit volume and does not cause uneven accumulation of ash and occurrence of cracks or the like even in use for a long period of time, and there is proposed a honeycomb structural body obtained by assembling one or plural porous ceramic members in which two kinds of through-holes consisting of a group of large volume through-holes and a group of small volume through-holes are arranged side by side in the longitudinal direction through partitions and either one ends of these through-holes are plugged, wherein the ceramic member is made of silicon-ceramic composite material consisting of ceramic and silicon.Type: GrantFiled: June 23, 2004Date of Patent: November 3, 2009Assignee: Ibiden Co., Ltd.Inventors: Teruo Komori, Kazushige Ohno, Sungtae Hong, Hiroki Sato
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Publication number: 20080086993Abstract: An object of the present invention is to provide a honeycomb structural body (filter) which has a low pressure loss upon collecting particulates, makes it possible to deposit a great amount of particulates and ashes, and is less likely to produce cracks.Type: ApplicationFiled: December 4, 2007Publication date: April 17, 2008Applicant: IBIDEN CO., LTD.Inventors: Teruo Komori, Kazushige Ohno, Sungtae Hong, Yukio Oshimi
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Patent number: 7326270Abstract: A filter has a honeycomb structural body having a plurality of large-capacity through holes and small-capacity through holes placed in parallel with one another in a length direction. A total (a) of lengths in the cross section of wall surfaces of one large-capacity through hole, the wall surfaces being shared by the one large-capacity through hole and adjacent large-capacity through holes to a total (b) of lengths in the cross section of wall surfaces of one large-capacity through hole, the wall surfaces being shared by the one large-capacity through hole and adjacent small-capacity through holes is defined as ?. A ratio (A/B) of the area (A) of the cross section of the one large-capacity through hole to the area (B) of the cross section of one of the adjacent small-capacity through holes is defined as ?. The ? and ? satisfy the relationship represented by the formulas: 0<??1.5 and 2<??2.75, and ??(20/9)?2+.Type: GrantFiled: September 16, 2003Date of Patent: February 5, 2008Assignee: Ibiden Co., Ltd.Inventors: Sungtae Hong, Teruo Komori, Kazushige Ohno
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Patent number: 7316722Abstract: An object of the present invention is to provide a honeycomb structural body (filter) which has a low pressure loss upon collecting particulates, makes it possible to deposit a great amount of particulates and ashes, and is less likely to produce cracks.Type: GrantFiled: September 16, 2003Date of Patent: January 8, 2008Assignee: Ibiden Co., Ltd.Inventors: Teruo Komori, Kazushige Ohno, Sungtae Hong, Yukio Oshimi
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Patent number: 7314496Abstract: A honeycomb structural body which is capable of increasing the limiting collection amount of particulate, reducing the pressure loss in use, and reducing fluctuations in the pressure loss even if the flow rate from an internal combustion engine of exhaust gases fluctuates. The honeycomb structural body is a columnar honeycomb structural body in which a large number of through holes are arranged side by side in the length direction with a partition wall interposed therebetween. The large number of through holes are constituted by a group of large-capacity through holes, with one end thereof sealed to make the total cross-sectional areas perpendicular to the length direction relatively greater, and a group of small-capacity through holes, with the other end thereof sealed to make the total cross-sectional areas relatively smaller. The honeycomb structural body includes a plurality of columnar porous ceramic members.Type: GrantFiled: September 16, 2003Date of Patent: January 1, 2008Assignee: Ibiden Co., Ltd.Inventors: Sungtae Hong, Teruo Komori, Kazushige Ohno
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Publication number: 20070227109Abstract: An object of the present invention is to provide a filter that makes it possible to suppress the initial pressure loss and, also, to reduce the rising rate of the pressure loss that increases as particulates accumulate; therefore, the pressure loss at the time when a prescribed amount of particulates have been collected becomes lower, and the pressure loss from the viewpoint of the period up to the recovery as a whole also becomes lower.Type: ApplicationFiled: June 11, 2007Publication date: October 4, 2007Applicant: IBIDEN CO., LTD.Inventors: Sungtae Hong, Teruo Komori, Kazushige Ohno
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Patent number: D522117Type: GrantFiled: November 29, 2004Date of Patent: May 30, 2006Assignee: Ibiden Co., Ltd.Inventors: Teruo Komori, Sungtae Hong
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Patent number: D523543Type: GrantFiled: November 29, 2004Date of Patent: June 20, 2006Assignee: Ibiden Co., Ltd.Inventors: Teruo Komori, Sungtae Hong
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Patent number: D523544Type: GrantFiled: September 6, 2005Date of Patent: June 20, 2006Assignee: Ibiden Co., Ltd.Inventors: Teruo Komori, Sungtae Hong
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Patent number: D530003Type: GrantFiled: September 6, 2005Date of Patent: October 10, 2006Assignee: Ibiden Co., Ltd.Inventors: Teruo Komori, Sungtae Hong
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Patent number: D534264Type: GrantFiled: September 6, 2005Date of Patent: December 26, 2006Assignee: Ibiden Co., Ltd.Inventors: Teruo Komori, Sungtae Hong
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Patent number: D538911Type: GrantFiled: October 14, 2005Date of Patent: March 20, 2007Assignee: Ibiden Co., Ltd.Inventors: Teruo Komori, Sungtae Hong