Patents Assigned to Sekisui Chemical Co., Ltd.
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Patent number: 11908629Abstract: The present invention provides an electret sheet that has excellent durability against a pressing force that is repetitively applied, that is, excellent compression recovery properties, and can suppress stuffiness even when used by attaching it to the skin of a human body. The electret sheet of the present invention has an air permeability of 10 to 1,000 sec/100 mL. Thus, the electret sheet has excellent durability against a pressing force that is repetitively applied, that is, excellent compression recovery properties, and can suppress stuffiness even when used by attaching it to the skin of a human body.Type: GrantFiled: August 23, 2019Date of Patent: February 20, 2024Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Tetsuhiro Kato, Nobuto Kamiya, Yasuyuki Shirasaka, Yuuta Katsurayama, Ryousuke Takahashi
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Publication number: 20240052302Abstract: Provided is a cell culture microcarrier capable of suppressing the aggregation of a microcarrier due to cell clumps and enhancing the efficiency of culturing cells. The cell culture microcarrier according to the present invention includes a base particle and a coating layer coating the outer surface of the base particle, and has a specific gravity of 1.10 g/cm3 or more.Type: ApplicationFiled: February 2, 2022Publication date: February 15, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Kenta TAKAKURA, Satoshi HANEDA, Yuuta NAKAMURA
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Publication number: 20240052301Abstract: Provided is a microcarrier for cell culture in which adhesion between microcarriers due to a cell mass can be suppressed. The microcarrier for cell culture according to the present invention includes a base particle and a coating layer covering an outer surface of the base particle, and the coating layer includes a resin having a polyvinyl alcohol derivative skeleton or a poly(meth)acrylic acid ester skeleton and having a peptide moiety, and the microcarrier has an average particle size of 300 ?m or more and a CV value of particle size of 10% or less.Type: ApplicationFiled: February 2, 2022Publication date: February 15, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Satoshi HANEDA, Hiroki IGUCHI
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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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Patent number: 11895762Abstract: An irradiator includes: a first electrode to which a voltage is applied for generating a plasma; and a holding member holding the first electrode; wherein: the holding member has a first member and a second member that are in contact with each other to constitute an accommodation space accommodating the first electrode; and a contact surface between the first member and the second member includes a non-perpendicular contact surface that is non-perpendicular to an axis of the first electrode.Type: GrantFiled: March 17, 2021Date of Patent: February 6, 2024Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Tatsuya Matsuo, Yoshishige Takikawa, Yu Nagahara, Naomichi Saito, Masaki Iwasaki, Takaya Oshita
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Patent number: 11884782Abstract: Provided is a resin particle that can be uniformly brought into contact with an adherend, can effectively enhance adhesion to a conductive portion and impact resistance when electrodes are electrically connected to each other using a conductive particle having the conductive portion formed on a surface thereof, and further can effectively reduce connection resistance. In the resin particle according to the present invention, an exothermic peak is observed when differential scanning calorimetry is performed by heating the resin particle at a temperature rising rate of 5° C./min from 100° C. to 350° C. in an air atmosphere.Type: GrantFiled: March 18, 2020Date of Patent: January 30, 2024Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Hiroyuki Morita, Takeshi Wakiya
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Patent number: 11884039Abstract: Provided is an insulating sheet capable of effectively enhancing thermal conduction and adhesiveness. The insulating sheet according to the present invention contains a thermosetting component and a thermally conductive filler, the thermally conductive filler contains boron nitride, the insulating sheet has a first surface on one side in a thickness direction and a second surface on the other side in the thickness direction, and a first content of the boron nitride in 100% by volume of a region having a thickness of 10% of a thickness of the sheet, from the first surface toward the second surface is smaller than a second content of the boron nitride in 100% by volume of a region having a thickness of 90% of a thickness of the sheet, from the second surface toward the first surface.Type: GrantFiled: May 9, 2018Date of Patent: January 30, 2024Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Masataka Sugimoto, Keigo Oowashi, Kouji Ashiba, Yuko Kawahara
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Publication number: 20240026195Abstract: The present invention aims to provide an adhesive tape for semiconductor device production which exhibits excellent chip component separability and can reduce adhesive deposits on chip components. Provided is an adhesive tape for semiconductor device production, including: a substrate; an ablation layer; a barrier layer; and a first adhesive layer in this order.Type: ApplicationFiled: September 5, 2022Publication date: January 25, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Noriyuki UCHIDA, Takuma GOTOU
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Publication number: 20240017233Abstract: A gas production device and a gas production system capable of continuously and stably manufacturing a produced gas containing carbon monoxide from a raw material gas containing carbon dioxide are provided. A gas production device 1 manufactures a produced gas containing carbon monoxide by bringing a raw material gas containing carbon dioxide into contact with a reducing agent containing a metal oxide that reduces the carbon dioxide.Type: ApplicationFiled: August 4, 2020Publication date: January 18, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yuki NAKAMA, Rasika DASANAYAKE ALUTHGE, Masaki NAKAMURA, Taiyou MORI, Fiona MUKHERJEE
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Publication number: 20240017523Abstract: An interlayer film structure (11) is used with being sandwiched between two transparent panels (12) and (13), and comprises a first light-modulating film (21) capable of switching between light transmission and light scattering, and a second light-modulating film (22) capable of adjusting a visible light transmittance, and the first and second light-modulating films (21) and (22) are arranged in a thickness direction.Type: ApplicationFiled: November 5, 2021Publication date: January 18, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yasuyuki IZU, Daisuke NAKAJIMA, Masashi YANAI
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Patent number: 11873398Abstract: Provided is an interlayer insulating material that can enhance the adhesion between an insulating layer and a metal layer, and can reduce the surface roughness on a surface of the insulating layer. The present invention is an interlayer insulating material used for a multilayer printed wiring board, which contains an epoxy compound, a curing agent, a silica, and a polyimide, and in which the polymide is a reactant of a tetracarboxylic anhydride and a dimer acid diamine, a content of the silica is 30% by weight or more and 90% by weight or less in 100% by weight of components excluding a solvent in the interlayer insulating material, and the total content of the epoxy compound and the curing agent in 100% by weight of components excluding the silica and a solvent in the interlayer insulating material is 65% by weight or more.Type: GrantFiled: September 28, 2017Date of Patent: January 16, 2024Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Tatsushi Hayashi, Takashi Nishimura, Susumu Baba
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Publication number: 20240010500Abstract: A gas production device and a gas production system capable of efficiently manufacturing a produced gas containing carbon monoxide from a raw material gas containing carbon dioxide are provided. The gas production device 1 is an apparatus that manufactures a produced gas containing carbon monoxide by bringing a raw material gas containing carbon dioxide into contact with a reductant that reduces the carbon dioxide.Type: ApplicationFiled: August 4, 2020Publication date: January 11, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yuki NAKAMA, Rasika DASANAYAKE ALUTHGE
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Publication number: 20240011013Abstract: Provided is a nucleic acid purification method capable of efficiently purifying a nucleic acid. The nucleic acid purification method including the steps of: mixing a nucleic acid with an antifoaming agent and a coprecipitation agent; and purifying the nucleic acid, in which the antifoaming agent is at least one of a nonionic surfactant and a silicone antifoaming agent.Type: ApplicationFiled: September 3, 2021Publication date: January 11, 2024Applicants: SEKISUI MEDICAL CO., LTD., SEKISUI CHEMICAL CO., LTD.Inventors: Sou YAMAGUCHI, Katsura UCHIDA, Tatsunori TAKAMATSU, Takamasa KOUNO, Takuya KINOSHITA
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Patent number: 11866574Abstract: The present invention provides a resin composition for molding that can provide a molded body having excellent thermal stability, high impact resistance, and high surface smoothness. The present invention also provides a molded body including the resin composition for molding. Provided is a resin composition for molding including: a chlorinated polyvinyl chloride; an acrylic processing aid; and an impact resistance modifier, the acrylic processing aid containing an acrylic resin having a weight average molecular weight of 500,000 to 5,000,000, the resin composition containing the acrylic processing aid in an amount of 0.2 to 10 parts by mass and the impact resistance modifier in an amount of 0.5 to 8.0 parts by mass relative to 100 parts by mass of the chlorinated polyvinyl chloride.Type: GrantFiled: September 26, 2018Date of Patent: January 9, 2024Assignees: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.Inventors: Hiroshi Taniguchi, Tsukasa Gotou
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Patent number: 11866635Abstract: There is provided a thermosetting material with which the heat-dissipating properties of a cured product can be considerably heightened and the mechanical strength of the cured product can also be heightened. The thermosetting material according to the present invention includes a thermosetting compound, a thermosetting agent, boron nitride nanotubes, and an insulating filler not being a nanotube.Type: GrantFiled: November 10, 2016Date of Patent: January 9, 2024Assignee: SEKISUI CHEMICAL CO., LTD.Inventor: Hiroya Ishida
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Patent number: 11865813Abstract: Provided is an interlayer film for laminated glass capable of suppressing the discoloration by the light and heat in an interlayer film including a resin layer colored with a coloring agent. The interlayer film for laminated glass according to the present invention has an infrared reflective layer, and a first resin layer containing a thermoplastic resin, the first resin layer is arranged on a first surface side of the infrared reflective layer, the infrared reflective layer has a first maximum reflection wavelength at a wavelength of 350 nm to 450 nm, and a second maximum reflection wavelength at a wavelength of 800 nm or more, each of reflectance at the first maximum reflection wavelength and reflectance at the second maximum reflection wavelength is 15% or more, and the first resin layer contains a coloring agent.Type: GrantFiled: March 29, 2019Date of Patent: January 9, 2024Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Atsushi Nohara, Masaki Yamamoto
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Publication number: 20240001646Abstract: Provided is a laminated glass having an achromatic color or a color close to achromatic color despite the use of colored glass. A laminated glass according to the present invention includes: a first lamination glass member which is colored glass; a second lamination glass member; and a colored interlayer film, the colored interlayer film is arranged between the first lamination glass member and the second lamination glass member, and the laminated glass has a color coordinate a* in L*a*b* color system of ?5 or more and 5 or less, and a color coordinate b* in L*a*b* color system of ?5 or more and 5 or less.Type: ApplicationFiled: December 7, 2021Publication date: January 4, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Moyuru OKAJIMA, Kouhei YAMAGUCHI, Koji KIDO, Masaki YAMAMOTO, Sho FUJIOKA
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Publication number: 20240001647Abstract: Provided is an interlayer film for a laminated glass capable of obtaining laminated glass having excellent unity of appearance.Type: ApplicationFiled: November 11, 2021Publication date: January 4, 2024Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Hiroaki INUI, Koji KUMAKURA, Kazuma SHIRAISHI
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Patent number: 11859063Abstract: A polyvinyl alcohol film comprises a vinyl alcohol-based polymer, wherein, when the polyvinyl alcohol film being measured by a solid echo method using pulse NMR at 60° C. for waveform separation of a free induction decay curve of 1H spin-spin relaxation into three curves derived from three components a component A, a component B, and a component C in order of short relaxation time, the component A has a resulting relaxation time of 0.0070 milliseconds or more and 0.0092 milliseconds or less, and a resulting component ratio of 20% or more and 50% or less.Type: GrantFiled: March 28, 2019Date of Patent: January 2, 2024Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Yohei Nishimura, Yasunari Kusaka, Nami Nakajima
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Patent number: 11862798Abstract: A positive electrode (1) for non-aqueous electrolyte secondary batteries, including collector (11) and active material layer (12), wherein: integrated value (a) is 3 to 15% (for frequency of diameters of 1 ?m or less), and frequency (b) is 8 to 20% (for diameter with a maximum frequency). A positive electrode (1) for non-aqueous electrolyte secondary batteries, including collector (11) and active material layer (12), wherein assuming two directions perpendicular to thickness direction of collector (11) and mutually orthogonal as first and second directions, average thickness a1, maximum thickness b1, minimum thickness c1 in thickness distribution in the first direction, and thickness d1 (largest absolute value of difference from a1) satisfy 0.990?(d1/a1)?1.010 and (b1?c1)?5.0 ?m, and average thickness a2, maximum thickness b2, minimum thickness c2 in thickness distribution in the second direction, and thickness d2 (largest absolute value of difference from a2) satisfy 0.990?(d2/a2)?1.010 and (b2?c2)?5.0 ?m.Type: GrantFiled: July 12, 2022Date of Patent: January 2, 2024Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Hikaru Yoshikawa, Yuichi Sabi