Patents by Inventor Sachiko ISHIDA
Sachiko ISHIDA 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: 11759741Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion, wherein the partition wall is composed of a material containing cordierite as a main component thereof, porosity of the partition wall measured by a mercury press-in method is 60 to 68%, an average pore diameter of the partition wall measured by a mercury press-in method is 13 to 18 ?m, and in a pore diameter distribution indicating a cumulative pore volume of the partition wall measured by a mercury press-in method, with a pore diameter (?m) on an abscissa axis and a log differential pore volume (cm3/g) on an ordinate axis, a first peak including a maximum value of the log differential pore volume has a pore diameter value of 15 ?m or less, the pore diameter value corresponding to a ? value width of the maximum value.Type: GrantFiled: January 18, 2021Date of Patent: September 19, 2023Assignee: NGK INSULATORS, LTD.Inventors: Fumihiko Yoshioka, Yuji Sasaki, Kimiko Kishine, Sachiko Ishida, Kyohei Kato
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Patent number: 11759740Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion, wherein the partition wall is composed of a material containing cordierite as a main component thereof, porosity of the partition wall measured by a mercury press-in method is 60 to 68%, an average pore diameter of the partition wall measured by a mercury press-in method is 8 to 12 and in a pore diameter distribution which indicates a cumulative pore volume of the partition wall measured by a mercury press-in method, with a pore diameter (?m) on an abscissa axis and a log differential pore volume (cm3/g) on an ordinate axis, a first peak that includes a maximum value of the log differential pore volume has a pore diameter value of 10 ?m or less, the pore diameter value corresponding to a ? value width of the maximum value.Type: GrantFiled: January 18, 2021Date of Patent: September 19, 2023Assignee: NGK INSULATORS, LTD.Inventors: Fumihiko Yoshioka, Yuji Sasaki, Kimiko Kishine, Sachiko Ishida, Kyohei Kato
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Patent number: 11571688Abstract: A honeycomb filter includes a honeycomb structure having a porous partition wall disposed to surround a plurality of cells; and a plugging portion provided at one end of the cell, wherein the honeycomb structure has an inflow side region including a range of up to at least 30% with respect to the total length of the honeycomb structure with the inflow end face as the starting point and an outflow side region including a range of up to at least 20% with respect to the total length of the honeycomb structure with the outflow end face as the starting point, in the extending direction of the cell of the honeycomb structure, an average pore diameter of the partition wall in the inflow side region is 9 to 14 ?m and an average pore diameter of the partition wall in the outflow side region is 15 to 20 ?m.Type: GrantFiled: December 15, 2021Date of Patent: February 7, 2023Assignee: NGK Insulators, Ltd.Inventors: Sachiko Ishida, Fumihiko Yoshioka
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Publication number: 20220305422Abstract: A honeycomb filter includes a honeycomb structure having a porous partition wall disposed to surround a plurality of cells; and a plugging portion provided at one end of the cell, wherein the honeycomb structure has an inflow side region including a range of up to at least 30% with respect to the total length of the honeycomb structure with the inflow end face as the starting point and an outflow side region including a range of up to at least 20% with respect to the total length of the honeycomb structure with the outflow end face as the starting point, in the extending direction of the cell of the honeycomb structure, an average pore diameter of the partition wall in the inflow side region is 15 to 20 ?m and an average pore diameter of the partition wall in the outflow side region is 9 to 14 ?m.Type: ApplicationFiled: December 22, 2021Publication date: September 29, 2022Applicant: NGK Insulators, Ltd.Inventors: Fumihiko YOSHIOKA, Sachiko ISHIDA
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Publication number: 20220305478Abstract: A honeycomb filter includes a honeycomb structure having a porous partition wall disposed to surround a plurality of cells; and a plugging portion provided at one end of the cell, wherein the honeycomb structure has an inflow side region including a range of up to at least 30% with respect to the total length of the honeycomb structure with the inflow end face as the starting point and an outflow side region including a range of up to at least 20% with respect to the total length of the honeycomb structure with the outflow end face as the starting point, in the extending direction of the cell of the honeycomb structure, an average pore diameter of the partition wall in the inflow side region is 9 to 14 ?m and an average pore diameter of the partition wall in the outflow side region is 15 to 20 ?m.Type: ApplicationFiled: December 15, 2021Publication date: September 29, 2022Applicant: NGK Insulators, Ltd.Inventors: Sachiko ISHIDA, Fumihiko YOSHIOKA
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Patent number: 11274588Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion, wherein the partition wall is composed of a material containing cordierite as a main component thereof, porosity of the partition wall measured by a mercury press-in method is 60 to 68%, an average pore diameter of the partition wall measured by a mercury press-in method is 19 to 26 ?m, and in a pore diameter distribution indicating a cumulative pore volume of the partition wall measured by a mercury press-in method, with a pore diameter (?m) on an abscissa axis and a log differential pore volume (cm3/g) on an ordinate axis, a first peak including a maximum value of the log differential pore volume has a pore diameter value of 18 ?m or less, the pore diameter value corresponding to a ? value width of the maximum value.Type: GrantFiled: January 18, 2021Date of Patent: March 15, 2022Assignee: NGK Insulators, Ltd.Inventors: Fumihiko Yoshioka, Yuji Sasaki, Kimiko Kishine, Sachiko Ishida, Kyohei Kato
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Publication number: 20210268423Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion, wherein the partition wall is composed of a material containing cordierite as a main component thereof, porosity of the partition wall measured by a mercury press-in method is 60 to 68%, an average pore diameter of the partition wall measured by a mercury press-in method is 8 to 12 and in a pore diameter distribution which indicates a cumulative pore volume of the partition wall measured by a mercury press-in method, with a pore diameter (?m) on an abscissa axis and a log differential pore volume (cm3/g) on an ordinate axis, a first peak that includes a maximum value of the log differential pore volume has a pore diameter value of 10 ?m or less, the pore diameter value corresponding to a ? value width of the maximum value.Type: ApplicationFiled: January 18, 2021Publication date: September 2, 2021Applicant: NGK Insulators, Ltd.Inventors: Fumihiko YOSHIOKA, Yuji SASAKI, Kimiko KISHINE, Sachiko ISHIDA, Kyohei KATO
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Publication number: 20210270172Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion, wherein the partition wall is composed of a material containing cordierite as a main component thereof, porosity of the partition wall measured by a mercury press-in method is 60 to 68%, an average pore diameter of the partition wall measured by a mercury press-in method is 19 to 26 ?m, and in a pore diameter distribution indicating a cumulative pore volume of the partition wall measured by a mercury press-in method, with a pore diameter (?m) on an abscissa axis and a log differential pore volume (cm3/g) on an ordinate axis, a first peak including a maximum value of the log differential pore volume has a pore diameter value of 18 ?m or less, the pore diameter value corresponding to a ? value width of the maximum value.Type: ApplicationFiled: January 18, 2021Publication date: September 2, 2021Applicant: NGK Insulators, Ltd.Inventors: Fumihiko YOSHIOKA, Yuji SASAKI, Kimiko KISHINE, Sachiko ISHIDA, Kyohei KATO
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Publication number: 20210268424Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion, wherein the partition wall is composed of a material containing cordierite as a main component thereof, porosity of the partition wall measured by a mercury press-in method is 60 to 68%, an average pore diameter of the partition wall measured by a mercury press-in method is 13 to 18 ?m, and in a pore diameter distribution indicating a cumulative pore volume of the partition wall measured by a mercury press-in method, with a pore diameter (?m) on an abscissa axis and a log differential pore volume (cm3/g) on an ordinate axis, a first peak including a maximum value of the log differential pore volume has a pore diameter value of 15 ?m or less, the pore diameter value corresponding to a ? value width of the maximum value.Type: ApplicationFiled: January 18, 2021Publication date: September 2, 2021Applicant: NGK Insulators, Ltd.Inventors: Fumihiko YOSHIOKA, Yuji SASAKI, Kimiko KISHINE, Sachiko ISHIDA, Kyohei KATO
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Publication number: 20170113172Abstract: An intake duct structure for an internal combustion engine includes an intake duct and an adsorption filter. The intake duct has an extendable-contractible portion, which is extendable and contractible in an axial direction, and the adsorption filter is arranged on the inner wall surface of the extendable-contractible portion. The adsorption filter includes an adsorption sheet. The adsorption sheet includes an adsorbent that adsorbs fuel vapor and a folding structure that is extendable and contractible in the axial direction.Type: ApplicationFiled: October 13, 2016Publication date: April 27, 2017Applicants: TOYOTA BOSHOKU KABUSHIKI KAISHA, MEIJI UNIVERSITYInventors: Tomohiro YOSHIDA, Tetsuya KUNO, Junji HATTORI, Yoshinori INUDUKA, Sachiko ISHIDA