Patents Assigned to Sumitomo Chemical Company
  • Patent number: 10938019
    Abstract: The object of the present invention is to provide a positive electrode active material usable for a lithium ion battery capable of high charge/discharge cycle performance and high discharge capacity. The positive electrode active material for a lithium secondary battery has a layered structure and comprises at least nickel, cobalt and manganese. Further, the positive electrode active material satisfies requirements (1) to (3) below: (1) a primary particle size of 0.1 ?m to 1 ?m, and a 50% cumulative particle size D50 of 1 ?m to 10 ?m, (2) a ratio (D90/D10) of volume-based 90% cumulative particle size D50 to volume-based 10% cumulative particle size D10 of 2 to 6, and (3) a lithium carbonate content in a residual alkali on particle surfaces of 0.1% by mass to 0.8% by mass as measured by neutralization titration.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: March 2, 2021
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, TANAKA CHEMICAL CORPORATION
    Inventors: Hiroyuki Kurita, Kenji Takamori, Yuichiro Imanari, Takaaki Masukawa, Daisuke Yamashita, Kimiyasu Nakao
  • Patent number: 10934287
    Abstract: A compound of formula (I) is provided. In the compound of formula (I), Q represents a group represented by formula Q1 or the like and the rest of the variable definitions are as set forth in the specification. The compounds of formula (I) have excellent control efficacy against harmful arthropods.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: March 2, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Takayuki Shioda, Takeshi Tsuruda, Masaru Shimomura
  • Publication number: 20210057196
    Abstract: A sputtering target comprising a target material, wherein a sputtering face of the target material has a ramp provided to reduce a thickness of the target material at a position where erosion concentrates most intensively during sputtering.
    Type: Application
    Filed: November 2, 2020
    Publication date: February 25, 2021
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Toshiaki KURODA, Mikio TAKIGAWA
  • Publication number: 20210054169
    Abstract: The present invention provides a composition capable of reducing adhesion of biofilms and therefore useful for producing a molded body. The composition comprises at least one resin (A) selected from the group consisting of thermoplastic resins and thermosetting resins, and a quorum sensing inhibitor (B), and is configured such that a common logarithm log S of solubility of the quorum sensing inhibitor (B) in water of 25° C. is less than 0.1, and Rai is greater than 3.2 MPa1/2, provided that Rai is a distance between a Hansen solubility parameter of the at least one resin (A) selected from the group consisting of thermoplastic resins and thermosetting resins and a Hansen solubility parameter of the quorum sensing inhibitor (B).
    Type: Application
    Filed: February 12, 2019
    Publication date: February 25, 2021
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kenta SAKURADA, Eiji NITTA, Takaya ICHIMIYA, Shota KONISHI
  • Publication number: 20210055247
    Abstract: A moisture-sensitive film formed from a resin composition and containing a polyimide resin component. The polyimide resin component comprises a fluorinated polyimide resin. The polyimide resin component comprises a phthalimide ring and a benzene ring different from a benzene ring included in the phthalimide ring. Based on a total amount of the polyimide resin component, the benzene ring different from the benzene ring included in the phthalimide ring has a mass fraction W (Be) and the phthalimide ring has a mass fraction W (PhI) satisfying the following formula: W (PhI)/W (Be)?1.2.
    Type: Application
    Filed: March 22, 2019
    Publication date: February 25, 2021
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Megumi HAYASAKA, Yoshifumi KOMATSU, Yoshihiro HARADA
  • Publication number: 20210053828
    Abstract: An object of the present invention is to provide a hydrogen sulfide production method enabling efficient recovery of sulfur. The production method is a method for producing hydrogen sulfide from sulfur and hydrogen comprising (1) a reaction step of reacting sulfur and hydrogen to obtain a crude hydrogen sulfide gas, (2) a purification step of purifying the crude hydrogen sulfide gas by bringing the crude hydrogen sulfide gas into contact with aliphatic lower alcohol in a packed tower to precipitate sulfur contained in the crude hydrogen sulfide gas, (3) a discharge step of discharging from inside the packed tower a suspension of sulfur in aliphatic lower alcohol obtained in the purification step, and (4) a filtration step of filtering the aliphatic lower alcohol suspension of sulfur with a filter to obtain a sulfur cake, and the filter 20 is a rotary filter 22 or a leaf filter.
    Type: Application
    Filed: December 21, 2018
    Publication date: February 25, 2021
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Yoshihiro NAKADA
  • Patent number: 10927225
    Abstract: Aromatic polyether microparticles contain a plurality of particles containing an aromatic polyether in which a content of the particles having a particle diameter equal to or smaller than 50 ?m to a total volume of the aromatic polyether microparticles is equal to or higher than 50% by volume. The aromatic polyether microparticles contain phenolic hydroxyl groups in a content equal to or greater than 80 ?mol/g.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: February 23, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Shinji Ohtomo, Yoshio Shoda
  • Publication number: 20210046454
    Abstract: Provided is a powder inorganic oxide containing Al, Ce and Zr as constituent elements, that affords a molded product with a density of 1.0 to 1.3 g/ml by placing 4.0 g of the inorganic oxide in a cylindrical container having diameter 20 mm and performing uniaxial molding under conditions of room temperature and pressure of 29.4 MPa for 30 sec., and achieves an average shrinkage percentage of not more than 14.0% as calculated by the following formula: average shrinkage percentage (%)=100×{(1?(c)/(a))+(1?(d)/(b))}/2 wherein each symbol is as defined in the DESCRIPTION.
    Type: Application
    Filed: February 15, 2019
    Publication date: February 18, 2021
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Yoshitaka KAWAKAMI, Hiroyuki ANDO
  • Publication number: 20210047449
    Abstract: A copolymer useful as an ingredient of a colored resin composition, comprising a structural unit derived from an aromatic carboxylic acid having an ethylenically unsaturated bond, a structural unit (Ab) represented by formula (Z), and a structural unit (Ac) derived from an unsaturated compound having a cyclic ether structure having 2 to 4 carbon atoms, wherein L represents a single bond or a divalent linking group, A represents a phenyl group optionally having a substituent other than a carboxy group or a naphthyl group optionally having a substituent other than a carboxy group, Ra represents a hydrogen atom, or an alkyl group having 1 to 4 carbon atoms, and a hydrogen atom contained in the alkyl group is optionally replaced by a hydroxy group.
    Type: Application
    Filed: February 19, 2019
    Publication date: February 18, 2021
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Yutaka KAWANISHI
  • Patent number: 10920034
    Abstract: Provided is a resin composition from which a heat dissipation sheet having high effect to suppress temperature elevation due to heat generated by electronic parts (elements) can be obtained. Specifically provided is a resin composition containing: a polymer (1) whose enthalpy of fusion observed within a temperature range of 10° C. or higher and lower than 60° C. in differential scanning calorimetry is 30 J/g or more; and a thermally conductive material (3) whose thermal conductivity is 1 W/(m·K) or higher, wherein the content of the thermally conductive material (3) is 1 part by weight or more and 80 parts by weight or less, with respect to 100 parts by weight of the total amount of polymer components contained in the resin composition.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: February 16, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Kohei Ueda
  • Patent number: 10923719
    Abstract: A positive-electrode active material for a lithium secondary battery includes: a secondary particle in which a plurality of primary particles of a lithium composite metal oxide are aggregated, in which the secondary particle has a void formed therein, and a through-hole that connects the void to a surface of the secondary particle, and satisfies predetermined requirements (i) to (iii).
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: February 16, 2021
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, TANAKA CHEMICAL CORPORATION
    Inventors: Jun-ichi Kageura, Ryota Kobayashi
  • Publication number: 20210040444
    Abstract: The present invention provides a method of obtaining aggregates containing a rostral hypothalamus tissue and a rostral head ectodermal tissue, a hypophysis precursor tissue and a hypophysis hormone producing cell, by using a serum-free medium (preferably substantially free of growth factor and insulins), forming homogeneous aggregates of stem cells from pluripotent stem cells such as ES cell and the like, which are plated at a high cell concentration, and subjecting the formed aggregates to floating-culture.
    Type: Application
    Filed: October 16, 2020
    Publication date: February 11, 2021
    Applicants: RIKEN, Sumitomo Chemical Company, Limited
    Inventors: Yoshiki SASAI, Hidetaka SUGA
  • Publication number: 20210043859
    Abstract: An object of the present invention is to provide a laminate film excellent in heat resistance. The present invention relates to a laminate film including: a second primer layer, a flexible substrate, a first primer layer, a first organic layer, and a first inorganic thin film layer in this order, in which the first primer layer and the second primer layer each have a softening temperature of 130° C. or higher; when a thermal expansion displacement in the MD is defined as A (?m) and a heating temperature is defined as T (° C.) when the laminate film is heated while being pulled at a tensile load of 29.4 mN and a temperature elevation rate of 20° C./min, the laminate film constantly satisfies a relationship dA/dT>0 where T is 50 to 200° C.; and a dimensional change rate in the MD when the laminate film is heated from 25° C. to 200° C., left to stand at 200° C. for 20 minutes, and cooled to 25° C. is ?0.3 to 0.5%.
    Type: Application
    Filed: March 22, 2019
    Publication date: February 11, 2021
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yasuhiro YAMASHITA, Hidenori HANAOKA, Shohei YAMAKAWA
  • Publication number: 20210040525
    Abstract: A manufacturing method for a single-stranded RNA includes a step of causing an RNA ligase to act on a first single-stranded RNA having a phosphate group at the 5? end and a second single-stranded RNA having a hydroxyl group at the 3? end to link the first single-stranded RNA and the second single-stranded RNA. The first single-stranded RNA is a single-stranded RNA consisting of an X1 region and a Z region in order from the 5? end; the second single-stranded RNA is a single strand consisting of an X2 region, a Y2 region, a Ly linker region, and a Y1 region in order from the 5? end; the X1 region and the X2 region have nucleotide sequences which are complementary to each other, have a length of at least two nucleotides, and have the same number of nucleotides; and the Y1 region and the Y2 region have nucleotide sequences which are complementary to each other, have a length of at least two nucleotides, and have the same number of nucleotides.
    Type: Application
    Filed: February 4, 2019
    Publication date: February 11, 2021
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Akihiro SAKATA
  • Patent number: 10916706
    Abstract: A composition having excellent dischargeability by an ink jet method and reduced clogging of an ink jet apparatus is provided. The composition contains a fluorinated alcohol A represented by the formula (1) and having a boiling point of 50° C. or more and less than 150° C., a fluorinated alcohol B represented by the formula (1) and having a boiling point of 150° C. or more and less than 300° C., and a charge transportable compound, in which the ratio rate of the fluorinated alcohol B with respect to 100 parts by mass of the sum of the fluorinated alcohol A and the fluorinated alcohol B is 10 parts by mass to 90 parts by mass: CnFH2nF+1-mFFnFOH ??(1) In formula (1), nF is an integer of 1 to 12 and mF is an integer of 1 to 25, provided that 2nF+1?mF.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: February 9, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masanobu Tanaka, Motoo Noda
  • Patent number: 10916720
    Abstract: An organic photoelectric conversion device having an anode, a cathode, an active layer disposed between the anode and the cathode, and a hole injection layer disposed between the anode and the active layer, wherein the anode is an electrode containing an electrically conductive nanosubstance and the hole injection layer is a layer showing a of 80% or more in measurement of the residual film rate after a water rinse treatment.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: February 9, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Yasunori Uetani
  • Patent number: 10912410
    Abstract: An ovenware is a molded article of a resin composition containing a liquid crystalline polyester resin, an inorganic filler, and a fatty acid compound, in which, when the ovenware is heated at 250° C., a total generated concentration of notional and decanal derived from the fatty acid compound is 1 vol ppb or less.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: February 9, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Shintaro Saito
  • Patent number: 10912304
    Abstract: A composition for controlling plant diseases comprising Paecilomyces fumosoroseus, and one or more nematicidal active ingredients selected from specific groups has an excellent controlling effect on plant diseases.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: February 9, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Ryo Ishikawa, Shinji Isayama
  • Patent number: 10916755
    Abstract: The present invention provides a nonaqueous electrolyte secondary battery insulating porous layer having an excellent withstand voltage property and an excellent leakage resistance characteristic. The nonaqueous electrolyte secondary battery insulating porous layer having a trabecular structure including voids, which trabecular structure has an anisotropy value of 1.30 to 2.10, the anisotropy value being calculated from a three-dimensional image showing a void part and a solid content part on respective two gradation levels, the three-dimensional image being prepared by analyzing images of cross sections obtained by making observation at intervals of 20 nm in a thickness direction from a surface of the nonaqueous electrolyte secondary battery insulating porous layer with use of a FIB-SEM having a magnification of 6500 times.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: February 9, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Ichiro Arise, Syusaku Hara, Junji Suzuki, Hiroki Hashiwaki
  • Patent number: 10915022
    Abstract: A photoresist composition comprising a resin which comprises a structural unit represented by the formula (I): and a salt represented by the formula (B1):
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: February 9, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Katsuhiro Komuro, Shingo Fujita, Koji Ichikawa