Patents by Inventor Sota OKOCHI
Sota OKOCHI 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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Publication number: 20230231153Abstract: Provided is an LDH-like compound separator including a porous substrate made of a polymeric material and an LDH-like compound plugging pores in the porous substrate. The LDH-like compound separator has a plurality of remaining flattened pores, longitudinal directions of the pores being non-parallel to a thickness direction of the LDH-like compound separator.Type: ApplicationFiled: March 8, 2023Publication date: July 20, 2023Applicant: NGK INSULATORS, LTD.Inventors: Sota OKOCHI, Shohei YOKOYAMA, Sho YAMAMOTO, Naoko INUKAI
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Publication number: 20230231154Abstract: Provided is an LDH-like compound separator including a porous substrate made of a polymeric material; and a layered double hydroxide (LDH)-like compound with which pores of the porous substrate are plugged. A central region along the thickness of the LDH-like compound separator has a lower mean porosity than peripheral regions along the thickness of the LDH-like compound separator.Type: ApplicationFiled: March 8, 2023Publication date: July 20, 2023Applicant: NGK INSULATORS, LTD.Inventors: Sota OKOCHI, Shohei YOKOYAMA, Sho YAMAMOTO, Naoko INUKAI
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Publication number: 20230207965Abstract: Provided is an LDH-like compound separator for secondary zinc batteries that includes a porous substrate made of a polymer material; and an LDH-like compound plugging pores in the porous substrate. The LDH-like compound separator has a dendrite buffer layer therein, the dendrite buffer layer being at least one selected from the group consisting of: (i) a pore-rich internal porous layer in the porous substrate, the internal porous layer being free from the LDH-like compound or deficient in the LDH-like compound; (ii) a releasable interfacial layer, which is provided by two adjacent layers constituting part of the LDH-like compound separator being in releasable contact with each other; and (iii) an internal gap layer being free from the LDH-like compound and the porous substrate, which is provided by two adjacent layers constituting part of the LDH-like compound separator being formed apart from each other.Type: ApplicationFiled: February 10, 2023Publication date: June 29, 2023Applicant: NGK INSULATORS, LTD.Inventors: Sota OKOCHI, Shohei YOKOYAMA, Naoko INUKAI, Sho YAMAMOTO
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Publication number: 20230198095Abstract: Provided is an LDH-like compound separator that includes a porous substrate made of a polymer material and a layered double hydroxide (LDH)-like compound plugging pores in the porous substrate, and has a linear transmittance of 1% or more at a wavelength of 1000 nm.Type: ApplicationFiled: February 10, 2023Publication date: June 22, 2023Applicant: NGK INSULATORS, LTD.Inventors: Sota OKOCHI, Shohei YOKOYAMA, Naoko INUKAI, Sho YAMAMOTO
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Patent number: 11545719Abstract: Provided is a layered double hydroxide (LDH) separator capable of more effectively restraining short circuiting caused by zinc dendrites. The LDH separator includes a porous substrate made of a polymer material and LDH plugging pores in the porous substrate, and has a linear transmittance of 1% or more at a wavelength of 1000 nm.Type: GrantFiled: May 23, 2019Date of Patent: January 3, 2023Assignee: NGK INSULATORS, LTD.Inventors: Sota Okochi, Shohei Yokoyama
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Patent number: 11532855Abstract: Provided is a layered double hydroxide (LDH) separator including a porous substrate made of a polymeric material; and a hydroxide-ion conductive layered compound being a LDH and/or a LDH-like compound with which pores of the porous substrate are plugged. The LDH separator has a mean porosity of 0.03% to less than 1.0%.Type: GrantFiled: August 25, 2021Date of Patent: December 20, 2022Assignee: NGK Insulators, LTD.Inventors: Sota Okochi, Shohei Yokoyama, Naoko Inukai, Sho Yamamoto
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Patent number: 11335973Abstract: A layered double hydroxide (LDH) separator capable of more effectively restraining short circuiting caused by zinc dendrites. The LDH separator for secondary zinc batteries includes a porous substrate made of a polymer material and a LDH plugging pores in the porous substrate. The LDH separator has a dendrite buffer layer therein, the dendrite buffer layer being at least one selected from the group consisting of: (i) a pore-rich internal porous layer in the porous substrate, the internal porous layer being free from the LDH or deficient in the LDH; (ii) a releasable interfacial layer; which is provided by two adjacent layers constituting part of the LDH separator in releasable contact with each other; and (iii) an internal gap layer free from the LDH and the porous substrate, which is provided by two adjacent layers constituting part of the LDH separator formed apart from each other.Type: GrantFiled: May 23, 2019Date of Patent: May 17, 2022Inventors: Sota Okochi, Shohei Yokoyama
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Publication number: 20210384588Abstract: Provided is a layered double hydroxide (LDH) separator including a porous substrate made of a polymeric material; and a hydroxide-ion conductive layered compound being a LDH and/or a LDH-like compound with which pores of the porous substrate are plugged. The LDH separator has a mean porosity of 0.03% to less than 1.0%.Type: ApplicationFiled: August 25, 2021Publication date: December 9, 2021Applicant: NGK INSULATORS, LTD.Inventors: Sota OKOCHI, Shohei YOKOYAMA, Naoko INUKAI, Sho YAMAMOTO
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Patent number: 11158906Abstract: Provided is a layered double hydroxide (LDH) separator comprising a porous substrate made of a polymeric material; and a LDH with which pores of the porous substrate are plugged. A central region along the thickness of the LDH separator has a lower mean porosity than peripheral regions along the thickness of the LDH separator.Type: GrantFiled: June 17, 2020Date of Patent: October 26, 2021Assignee: NGK Insulators, Ltd.Inventors: Yukihisa Takeuchi, Naohito Yamada, Sota Okochi, Shohei Yokoyama, Naoko Inukai
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Patent number: 11145935Abstract: Provided is a layered double hydroxide (LDH) separator including a porous substrate made of a polymeric material; and a LDH with which pores of the porous substrate are plugged. The LDH separator has a mean porosity of 0.03% to less than 1.0%.Type: GrantFiled: June 17, 2020Date of Patent: October 12, 2021Assignee: NGK Insulators, Ltd.Inventors: Yukihisa Takeuchi, Naohito Yamada, Sota Okochi, Shohei Yokoyama, Naoko Inukai
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Publication number: 20200313137Abstract: Provided is a layered double hydroxide (LDH) separator including a porous substrate made of a polymeric material, and LDH with which pores of the porous substrate are plugged. The LDH separator has a plurality of remaining flattened pores, longitudinal directions of the pores being non-parallel to a thickness direction of the LDH separator.Type: ApplicationFiled: June 17, 2020Publication date: October 1, 2020Applicant: NGK INSULATORS, LTD.Inventors: Yukihisa TAKEUCHI, Naohito YAMADA, Sota OKOCHI, Shohei YOKOYAMA, Naoko INUKAI
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Publication number: 20200313134Abstract: Provided is a layered double hydroxide (LDH) separator comprising a porous substrate made of a polymeric material; and a LDH with which pores of the porous substrate are plugged. A central region along the thickness of the LDH separator has a lower mean porosity than peripheral regions along the thickness of the LDH separator.Type: ApplicationFiled: June 17, 2020Publication date: October 1, 2020Applicant: NGK INSULATORS, LTD.Inventors: Yukihisa TAKEUCHI, Naohito YAMADA, Sota OKOCHI, Shohei YOKOYAMA, Naoko INUKAI
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Publication number: 20200313133Abstract: Provided is a layered double hydroxide (LDH) separator including a porous substrate made of a polymeric material; and a LDH with which pores of the porous substrate are plugged. The LDH separator has a mean porosity of 0.03% to less than 1.0%.Type: ApplicationFiled: June 17, 2020Publication date: October 1, 2020Applicant: NGK INSULATORS, LTD.Inventors: Yukihisa TAKEUCHI, Naohito YAMADA, Sota OKOCHI, Shohei YOKOYAMA, Naoko INUKAI
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Patent number: 10717679Abstract: There is provided a platy zinc oxide sintered compact containing 0.80 wt % or less at least one first dopant element selected from the group consisting of Al, Ga and In, the balance consisting essentially of ZnO and optionally at least one second dopant element selected from the group consisting of Br, Cl, F, Sn, Y, Pr, Ge, B, Sc, Si, Ti, Zr, Hf, Mn, Ta, W, Cu, Ni, Cr, La, Gd, Bi, Ce, Sr and Ba, the second dopant element being optional component, wherein the (002)-plane orientation in the plate surface is 60% or more. The zinc oxide sintered compact of the present invention has excellent properties such as high orientation in addition to transparency and conductivity.Type: GrantFiled: January 30, 2017Date of Patent: July 21, 2020Assignee: NGK Insulators, Ltd.Inventors: Sota Okochi, Jun Yoshikawa, Koichi Kondo
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Patent number: 10442736Abstract: There is provided a platy Mg-containing zinc oxide sintered compact containing 1 to 10 wt % Mg as a first dopant element and 0.005 wt % or more at least one second dopant element selected from the group consisting of Al, Ga and In, the balance consisting essentially of ZnO and optionally at least one third dopant element selected from the group consisting of Br, Cl, F, Sn, Y, Pr, Ge, B, Sc, Si, Ti, Zr, Hf, Mn, Ta, W, Cu, Ni, Cr, La, Gd, Bi, Ce, Sr and Ba, wherein the (002)-plane or (100)-plane orientation in the plate surface is 60% or more. The Mg-containing zinc oxide sintered compact of the present invention has excellent properties such as high orientation despite solid dissolution of Mg.Type: GrantFiled: January 30, 2017Date of Patent: October 15, 2019Assignee: NGK Insulators, Ltd.Inventors: Sota Okochi, Jun Yoshikawa, Koichi Kondo
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Publication number: 20190280271Abstract: Provided is a layered double hydroxide (LDH) separator capable of more effectively restraining short circuit caused by zinc dendrites. The LDH separator includes a porous substrate made of a polymer material and LDH plugging pores in the porous substrate, and has a linear transmittance of 1% or more at a wavelength of 1000 nm.Type: ApplicationFiled: May 23, 2019Publication date: September 12, 2019Inventors: Sota Okochi, Shohei Yokoyama
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Publication number: 20190280272Abstract: Provided is a layered double hydroxide (LDH) separator capable of more effectively restraining short circuit caused by zinc dendrites. The LDH separator for secondary zinc batteries includes a porous substrate made of a polymer material; and a LDH plugging pores in the porous substrate. The LDH separator has a dendrite buffer layer therein, the dendrite buffer layer being at least one selected from the group consisting of: (i) a pore-rich internal porous layer in the porous substrate, the internal porous layer being free from the LDH or deficient in the LDH; (ii) a releasable interfacial layer, which is provided by two adjacent layers constituting part of the LDH separator being in releasable contact with each other; and (iii) an internal gap layer being free from the LDH and the porous substrate, which is provided by two adjacent layers constituting part of the LDH separator being formed apart from each other.Type: ApplicationFiled: May 23, 2019Publication date: September 12, 2019Inventors: Sota OKOCHI, Shohei YOKOYAMA
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Publication number: 20170137326Abstract: There is provided a platy zinc oxide sintered compact containing 0.80 wt % or less at least one first dopant element selected from the group consisting of Al, Ga and In, the balance consisting essentially of ZnO and optionally at least one second dopant element selected from the group consisting of Br, Cl, F, Sn, Y, Pr, Ge, B, Sc, Si, Ti, Zr, Hf, Mn, Ta, W, Cu, Ni, Cr, La, Gd, Bi, Ce, Sr and Ba, the second dopant element being optional component, wherein the (002)-plane orientation in the plate surface is 60% or more. The zinc oxide sintered compact of the present invention has excellent properties such as high orientation in addition to transparency and conductivity.Type: ApplicationFiled: January 30, 2017Publication date: May 18, 2017Applicant: NGK INSULATORS, LTD.Inventors: Sota OKOCHI, Jun YOSHIKAWA, Koichi KONDO
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Publication number: 20170137325Abstract: There is provided a platy Mg-containing zinc oxide sintered compact containing 1 to 10 wt % Mg as a first dopant element and 0.005 wt % or more at least one second dopant element selected from the group consisting of Al, Ga and In, the balance consisting essentially of ZnO and optionally at least one third dopant element selected from the group consisting of Br, CI, F, Sn, Y, Pr, Ge, B, Sc, Si, Ti, Zr, Hf, Mn, Ta, W, Cu, Ni, Cr, La, Gd, Bi, Ce, Sr and Ba, wherein the (002)-plane or (100)-plane orientation in the plate surface is 60% or more. The Mg-containing zinc oxide sintered compact of the present invention has excellent properties such as high orientation despite solid dissolution of Mg.Type: ApplicationFiled: January 30, 2017Publication date: May 18, 2017Applicant: NGK INSULATORS, LTD.Inventors: Sota OKOCHI, Jun YOSHIKAWA, Koichi KONDO