Patents by Inventor Ren-De Sun
Ren-De Sun 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: 20240043691Abstract: The present invention provides a near-infrared transmitting black material that can sufficiently absorb visible light and sufficiently inhibit the absorption of near-infrared light. Provided is a near-infrared transmitting black material containing an oxazine resin.Type: ApplicationFiled: August 31, 2021Publication date: February 8, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Mikitoshi SUEMATSU, Ren-de SUN, Hiroji FUKUI, Masahiro ISHII
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Publication number: 20220411553Abstract: The present invention provides black particles that have high electrical insulation and that can achieve high blackness in the visible light region, as well as a black coating material, a coating film, and a black matrix for a color filter each containing the black particles. Provided are black particles containing a copolymer including a structural unit derived from a pyrrole compound and a structural unit derived from a quinone compound, the black particles having an aqueous dispersion number average particle size of 100 nm or less and a zeta potential of ?5 mV or less.Type: ApplicationFiled: November 17, 2020Publication date: December 29, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Masahiro ISHII, Ren-de SUN, Hiroji FUKUI
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Publication number: 20220266222Abstract: The present invention provides a column filler for liquid chromatography that has a great adsorption capacity, adjustable adsorption selectivity, and high shape retainability and therefore is usable for measurement of various substances and capable of achieving excellent separation performance and a high filling rate in a column when used as a column filler for liquid chromatography. Provided is a column filler for liquid chromatography including carbon-coated porous particles, the carbon-coated porous particles including porous particles each having a coating layer containing an amorphous carbon on a surface.Type: ApplicationFiled: May 13, 2022Publication date: August 25, 2022Applicants: SEKISUI CHEMICAL CO., LTD., NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITYInventors: Ren-de SUN, Shoji NOZATO, Akira NAKASUGA, Hirotaka IHARA, Makoto TAKAFUJI, Yutaka KUWAHARA, Hiroki NOGUCHI, Tianhang LIU
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Patent number: 11404686Abstract: The present invention provides a negative electrode active material for lithium ion batteries which has high adhesiveness and followability to a negative electrode active material in volume expansion and contraction during charging and discharging, excellent contact and adhesiveness to a conductive aid, a binder, and a current collector, and a high suppressing effect on decomposition of an electrolyte solution. Due to these features, the negative electrode active material for lithium ion batteries is capable of achieving excellent cycle characteristics and rate characteristics and high coulombic efficiency. The present invention also provides a negative electrode for lithium ion secondary batteries and a lithium ion secondary battery each including the negative electrode active material for lithium ion batteries, and a method for producing a negative electrode active material for lithium ion batteries.Type: GrantFiled: April 26, 2018Date of Patent: August 2, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Ren-de Sun, Shoji Nozato, Akira Nakasuga
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Publication number: 20220169864Abstract: The present invention provides a resin composition having a high optical density and capable of providing a high-quality color filter excellent in long-term stability and insulation properties. The present invention also provides a cured product of the resin composition, a black matrix, a color filter, a liquid crystal display device, an organic electroluminescent display device, and a method for producing the resin composition. Provided is a resin composition including: amorphous carbon-containing black particles; and a curable compound, the black particles having a specific gravity of 1.75 or lower and an oil absorption as set forth in JIS K 51C1-13-1 of 30 ml/100 g or higher and 120 ml/100 g or lower.Type: ApplicationFiled: February 20, 2020Publication date: June 2, 2022Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Ren-de SUN, Masahiro ISHII, Hiroji FUKUI, Akira NAKASUGA
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Publication number: 20210408544Abstract: The present invention provides an active material for all-solid-state batteries that enables production of all-solid-state batteries having excellent battery characteristics. The present invention also provides an electrode for all-solid-state batteries and an all-solid-state battery each including the active material for all-solid-state batteries. Provided is an active material for all-solid-state batteries, including: an active material; and a coating layer containing amorphous carbon and coating a surface of the active material, the coating layer coating at least part of the surface of the active material.Type: ApplicationFiled: November 21, 2019Publication date: December 30, 2021Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Ren-de SUN, Hiroji FUKUI, Akira NAKASUGA, Yuuki SAWADA
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Publication number: 20210283576Abstract: The present invention provides a column filler for liquid chromatography that has a great adsorption capacity, adjustable adsorption selectivity, and high shape retainability and therefore is usable for measurement of various substances and capable of achieving excellent separation performance and a high filling rate in a column when used as a column filler for liquid chromatography. Provided is a column filler for liquid chromatography including carbon-coated porous particles, the carbon-coated porous particles including porous particles each having a coating layer containing an amorphous carbon on a surface.Type: ApplicationFiled: November 11, 2017Publication date: September 16, 2021Applicants: SEKISUI CHEMICAL CO., LTD., NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITYInventors: Ren-de SUN, Shoji NOZATO, Akira NAKASUGA, Hirotaka IHARA, Makoto TAKAFUJI, Yutaka KUWAHARA, Hiroki NOGUCHI, Tianhang LIU
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Publication number: 20200388826Abstract: The present invention provides a negative electrode active material for lithium ion batteries which has high adhesiveness and followability to a negative electrode active material in volume expansion and contraction during charging and discharging, excellent contact and adhesiveness to a conductive aid, a binder, and a current collector, and a high suppressing effect on decomposition of an electrolyte solution. Due to these features, the negative electrode active material for lithium ion batteries is capable of achieving excellent cycle characteristics and rate characteristics and high coulombic efficiency. The present invention also provides a negative electrode for lithium ion secondary batteries and a lithium ion secondary battery each including the negative electrode active material for lithium ion batteries, and a method for producing a negative electrode active material for lithium ion batteries.Type: ApplicationFiled: April 26, 2018Publication date: December 10, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Ren-de SUN, Shoji NOZATO, Akira NAKASUGA
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Patent number: 10741832Abstract: A positive electrode active material for a lithium ion battery includes a coating layer comprising amorphous carbon on a surface of a positive electrode active material, wherein the amorphous carbon is derived from carbon contained in an oxazine resin, a ratio of a peak intensity of a G band to a peak intensity of a D band is 1.0 or greater when the amorphous carbon is measured by Raman spectroscopy, an average film thickness of the coating layer is 100 nm or less, and a coefficient of variation (CV value) of a film thickness of the coating layer is 10% or less.Type: GrantFiled: March 27, 2017Date of Patent: August 11, 2020Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Ren-de Sun, Shoji Nozato, Akira Nakasuga, Masanori Nakamura
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Patent number: 10647912Abstract: A carbon-coated vanadium dioxide particle includes a vanadium dioxide particle; and a coating layer containing amorphous carbon on a surface of the vanadium dioxide particle, the amorphous carbon being derived from carbon contained in an oxazine resin, and having a peak intensity ratio of a G band to a band of 1.5 or greater as determined from a Raman spectrum. The coating layer has an average thickness of 50 nm or less. The coating layer has a coefficient of variation (CV value) of thickness of 7% or less.Type: GrantFiled: March 22, 2017Date of Patent: May 12, 2020Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Ren-de Sun, Shoji Nozato, Akira Nakasuga, Masanori Nakamura, Naoyuki Nagatani, Keigo Oowashi
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Publication number: 20180354798Abstract: The present invention provides black particles having high electrical insulation properties, high blackness in a visible light region, and excellent dispersibility, and a method for producing the black particles. The present invention relates to black particles containing amorphous carbon, the amorphous carbon being derived from carbon contained in an oxazine resin, the black particles having a specific gravity of 1.8 g/cm3 or less, a zeta potential of ?70 to +80 mV, an average total light reflectance measured at a wavelength of 400 to 800 nm of 5% or less, and a peak intensity ratio between G band and D band as determined from a Raman spectrum of 1.2 or more.Type: ApplicationFiled: February 17, 2017Publication date: December 13, 2018Applicants: SEKISUI CHEMICAL CO., LTD., NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITYInventors: Ren-de SUN, Shoji NOZATO, Akira NAKASUGA, Hirotaka IHARA, Makoto TAKAFUJI, Yutaka KUWAHARA, Akiko MURAKAMI
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Patent number: 10121717Abstract: A carbon-coated thermal conductive material includes a coating layer comprising amorphous carbon on a surface of a thermal conductive material, wherein the thermal conductive material comprises a metal oxide, a metal nitride, a metal material, or a carbon-based material having a thermal conductivity of 10 W/mK or greater, the amorphous carbon is derived from carbon contained in an oxazine resin, a ratio of a peak intensity of a G band to a peak intensity of a D band is 1.0 or greater when the amorphous carbon is measured by Raman spectroscopy, an average film thickness of the coating layer is 500 nm or less, and a coefficient of variation (CV value) of a film thickness of the coating layer is 15% or less.Type: GrantFiled: March 27, 2017Date of Patent: November 6, 2018Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Ren-de Sun, Shoji Nozato, Akira Nakasuga, Masanori Nakamura
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Publication number: 20170200945Abstract: A positive electrode active material for a lithium ion battery includes a coating layer comprising amorphous carbon on a surface of a positive electrode active material, wherein the amorphous carbon is derived from carbon contained in an oxazine resin, a ratio of a peak intensity of a G band to a peak intensity of a D band is 1.0 or greater when the amorphous carbon is measured by Raman spectroscopy, an average film thickness of the coating layer is 100 nm or less, and a coefficient of variation (CV value) of a film thickness of the coating layer is 10% or less.Type: ApplicationFiled: March 27, 2017Publication date: July 13, 2017Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Ren-de Sun, Shoji Nozato, Akira Nakasuga, Masanori Nakamura
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Publication number: 20170200663Abstract: A carbon-coated thermal conductive material includes a coating layer comprising amorphous carbon on a surface of a thermal conductive material, wherein the thermal conductive material comprises a metal oxide, a metal nitride, a metal material, or a carbon-based material having a thermal conductivity of 10 W/mK or greater, the amorphous carbon is derived from carbon contained in an oxazine resin, a ratio of a peak intensity of a G band to a peak intensity of a D band is 1.0 or greater when the amorphous carbon is measured by Raman spectroscopy, an average film thickness of the coating layer is 500 nm or less, and a coefficient of variation (CV value) of a film thickness of the coating layer is 15% or less.Type: ApplicationFiled: March 27, 2017Publication date: July 13, 2017Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Ren-de Sun, Shoji Nozato, Akira Nakasuga, Masanori Nakamura
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Publication number: 20170190964Abstract: A carbon-coated vanadium dioxide particle includes a vanadium dioxide particle; and a coating layer containing amorphous carbon on a surface of the vanadium dioxide particle, the amorphous carbon being derived from carbon contained in an oxazine resin, and having a peak intensity ratio of a G band to a band of 1.5 or greater as determined from a Raman spectrum. The coating layer has an average thickness of 50 nm or less. The coating layer has a coefficient of variation (CV value) of thickness of 7% or less.Type: ApplicationFiled: March 22, 2017Publication date: July 6, 2017Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Ren-de Sun, Shoji Nozato, Akira Nakasuga, Masanori Nakamura, Naoyuki Nagatani, Keigo Oowashi
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Publication number: 20160129673Abstract: The present invention provides an interlayer film for laminated glass that can maintain excellent thermochromic properties for a long period of time and have appropriate adhesiveness to laminated glass components, and also a laminated glass including the interlayer film for laminated glass. The present invention relates to an interlayer film for laminated glass. The interlayer film includes a first resin layer containing a thermoplastic resin, a thermochromic layer, a second resin layer containing a thermoplastic resin. The layers are laminated in the stated order in the thickness direction. The thermochromic layer contains a thermoplastic resin and vanadium dioxide particles and has a water content of less than 0.4% by mass. Each of the first resin layer and the second resin layer has a water content that is higher than that of the thermochromic layer.Type: ApplicationFiled: August 29, 2014Publication date: May 12, 2016Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Keigo OOWASHI, Naoyuki NAGATANI, Ren-de SUN
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Publication number: 20150107673Abstract: The present invention aims to provide a sulfide semiconductor-forming coating liquid capable of easily forming a sulfide semiconductor having a large area, the sulfide semiconductor being useful as a semiconductor material for photoelectric conversion materials. The present invention also aims to provide a sulfide semiconductor thin film produced using the sulfide semiconductor-forming coating liquid; and a thin film solar cell. The present invention provides a sulfide semiconductor-forming coating liquid, the coating liquid containing a complex containing a metal element of group 15 of the periodic table and sulfur.Type: ApplicationFiled: April 24, 2013Publication date: April 23, 2015Inventors: Kazushi Ito, Akinobu Hayakawa, Shunji Ohara, Ren-de Sun
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Patent number: 8981226Abstract: The present invention is a conductive particle having a copper layer formed on a surface of a resin particle, wherein in the copper layer, an area ratio of an area corresponding to voids in a cross-section in a thickness direction is 5% or less, and copper composing the copper layer has an average crystallite diameter of 40 nm or more. It is an object of the present invention to provide a conductive particle which has low initial connection resistance and which is hard to increase in connection resistance even when stored for a long period.Type: GrantFiled: October 24, 2008Date of Patent: March 17, 2015Assignee: Sekisui Chemical Co., Ltd.Inventors: Taku Sasaki, Hiroshi Natsui, Shinya Uenoyama, Ren-de Sun
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Publication number: 20150027540Abstract: The present invention aims to provide an organic thin-film solar cell that has a high photoelectric conversion efficiency, little dispersion in the photoelectric conversion efficiency in a photoelectric conversion layer, and excellent durability. The present invention is an organic thin-film solar cell including a photoelectric conversion layer, wherein the photoelectric conversion layer includes a portion containing a sulfide of a Group 15 element in the periodic table and a portion containing an organic semiconductor having a molecular weight of less than 10,000, and the portion containing a sulfide of a Group 15 element in the periodic table and the portion containing an organic semiconductor having a molecular weight of less than 10,000 contact with each other.Type: ApplicationFiled: February 7, 2013Publication date: January 29, 2015Inventors: Akinobu Hayakawa, Kazushi Ito, Ren-de Sun
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Publication number: 20150000745Abstract: The present invention aims to provide an organic thin-film solar cell that has a high photoelectric conversion efficiency and excellent durability. The present invention relates to an organic thin-film solar cell including a photoelectric conversion layer, wherein the photoelectric conversion layer includes a portion containing a sulfide of a Group 15 element in the periodic table and a portion containing a donor-acceptor organic semiconductor, and the portion containing a sulfide of a Group 15 element in the periodic table and the portion containing a donor-acceptor organic semiconductor are in contact with each other.Type: ApplicationFiled: February 7, 2013Publication date: January 1, 2015Inventors: Akinobu Hayakawa, Kazushi Ito, Ren-de Sun