Patents Assigned to Hitachi Chemical Company, Ltd.
  • Patent number: 10662315
    Abstract: An epoxy resin molding material for sealing includes (A) an epoxy resin, (B) a curing agent, (C) a curing accelerator, (D) an inorganic filler, (E1) an arylamino group-containing alkoxysilane compound, and (E2) an epoxy group-containing alkoxy silane compound.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: May 26, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Mitsuyoshi Hamada, Fumio Furusawa, Ryoichi Ikezawa, Keizo Takemiya, Toru Baba
  • Patent number: 10662279
    Abstract: Provided is an epoxy resin composition including an epoxy resin and a curing agent, in which the epoxy resin contains a multimeric compound having at least one selected from the group consisting of a structural unit represented by the following Formula (IA) and a structural unit represented by the following Formula (IB), the multimeric compound contains a dimeric compound containing two structural units represented by the following Formula (II) in one molecule, and a ratio of the dimeric compound is from 15% by mass to 28% by mass with respect to the epoxy resin as a whole.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: May 26, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Yuka Yoshida, Kenji Tanaka, Hideyuki Katagi, Yoshihiro Amano, Shinichi Kosugi, Haruaki Sue, Yoshitaka Takezawa
  • Patent number: 10656521
    Abstract: A photosensitive resin composition comprises: a resin having a phenolic hydroxyl group; a photosensitive acid generator; a compound having at least one selected from the group consisting of an aromatic ring, a heterocycle and an alicycle, and at least one selected from the group consisting of a methylol group and an alkoxyalkyl group; and an aliphatic compound having two or more functional groups, the functional groups being at least one functional group selected from the group consisting of an acryloyloxy group, a methacryloyloxy group, a glycidyloxy group, an oxetanyl alkyl ether group, a vinyl ether group and a hydroxyl group, wherein the photosensitive acid generator is a sulfonium salt containing an anion having at least one skeleton selected from the group consisting of a tetraphenylborate skeleton, an alkylsulfonate skeleton having 1 to 20 carbon atoms, a phenylsulfonate skeleton and a 10-camphorsulfonate skeleton.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: May 19, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Tetsuya Kato, Kenichi Iwashita, Akihiro Nakamura, Akio Nakano, Hiroshi Ono
  • Publication number: 20200152398
    Abstract: One aspect of the present invention provides an electrolytic solution comprising a compound represented by the following formula (1): wherein R1 to R3 each independently represent an alkyl group or a fluorine atom, R4 represents an alkylene group, and R5 represents an organic group containing a sulfur atom.
    Type: Application
    Filed: May 31, 2018
    Publication date: May 14, 2020
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Kaoru KONNO, Kumpei YAMADA, Ryuichiro FUKUTA
  • Patent number: 10646851
    Abstract: The present invention provides a separation material comprising porous polymer particles that comprise a styrene-based monomer as a monomer unit; and a coating layer that comprises a macromolecule having hydroxyl groups and covers at least a portion of the surface of the porous polymer particles, wherein the rupture strength is 10 mN or higher.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: May 12, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Masaru Watanabe, Tomoko Higashiuchi, Fumihiko Kawauchi, Yasushi Gotoh, Michio Butsugan
  • Patent number: 10651458
    Abstract: A negative electrode for a lithium secondary battery includes a layer of a mixture containing graphite powder and an organic binder on a current collector, wherein a diffraction intensity ratio (002)/(110) measured by X-ray diffractometry of the layer of a mixture is 500 or less. A lithium secondary battery includes the negative electrode for a lithium secondary battery, and a positive electrode that includes a lithium compound. This results in less deterioration in the rapid charge and discharge characteristics and the cycle characteristics when the density of the negative electrode is made higher, thereby providing a high capacity lithium secondary battery having the improved energy density per unit volume of the secondary battery.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: May 12, 2020
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Yoshito Ishii, Souichirou Suda, Tatsuya Nishida
  • Patent number: 10645804
    Abstract: An adhesive film according to the present invention includes a resin composition layer (layer A) for an interlayer insulating layer, a thermosetting resin composition layer (layer B), and a support film (layer C), and the layer C, the layer A, and the layer B are sequentially arranged in this order. The layer A is a resin composition which contains a thermosetting resin (a1) and an inorganic filler (b1) having a specific surface area of 20 m2/g or more, and the mass ratio of the thermosetting resin (a1) to the inorganic filler (b1) is within the range from 30:1 to 2:1. The layer B contains a thermosetting resin composition which is in a solid state at a temperature lower than 40° C. but melts at a temperature of 40° C. or higher but lower than 140° C.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: May 5, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Masaharu Matsuura, Nobuyuki Ogawa, Hiroaki Fujita, Hiroyuki Fukai
  • Patent number: 10633249
    Abstract: A method for simultaneously producing carbon nanotubes and hydrogen according to the present invention is a method for simultaneously producing carbon nanotubes and hydrogen, in which using a carbon source containing carbon atoms and hydrogen atoms and being decomposed in a heated state, and a catalyst for producing carbon nanotubes and H2 from the carbon source, the above carbon nanotubes are synthesized on a support in a heated state, placed in a reactor, and simultaneously, the above H2 is synthesized from the above carbon source, the method comprising a synthesis step of flowing a source gas comprising the above carbon source over the above support, on which the above catalyst is supported, to synthesize the above carbon nanotubes on the above support and simultaneously synthesize the above H2 in a gas flow.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: April 28, 2020
    Assignees: The University of Tokyo, Hitachi Chemical Company, Ltd.
    Inventors: Suguru Noda, Dong Young Kim, Toshio Osawa, Hisashi Sugime, Kei Hasegawa, Eisuke Haba
  • Patent number: 10626934
    Abstract: A non-asbestos frictional material composition is provided, which is capable of provide a frictional material with low environmental load and with excellent friction coefficient, anti-crack properties, and abrasion resistance compared with conventional ones. Furthermore, a frictional material and a friction member formed by using this non-asbestos frictional material composition are provided. The non-asbestos frictional material composition containing a binder, an organic filler, an inorganic filler, and a fiber base material, includes: copper in a content of 5 mass % or less as a copper element; a metal fiber other than a copper fiber and a copper alloy fiber in a content of 0.5 mass % or less; cashew dust in a content of 1.5-4.5 mass % as the organic filler; zirconium oxide with a particle size of 30 ?m or less in a content of 30-45 mass % but not containing zirconium oxide with a particle size of more than 30 ?m as the inorganic filler.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: April 21, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Takashi Kikudome, Mitsuo Unno, Kazuya Baba
  • Patent number: 10629457
    Abstract: Provided is a method for manufacturing a semiconductor device through which improvement of production efficiency can be achieved. In the method of manufacturing the semiconductor device (1), a sealing material (7) is attached to seal a semiconductor element (3), a release film (F) is provided in a mold facing the semiconductor element (3), and the sealing material (7) is cured by an upper mold (22) and a lower mold (24). A metal layer (9) that shields electromagnetic waves is previously provided on a side of the release film (F) coming in contact with the sealing material (7). In the curing of the sealing material (7), the metal layer (9) is transferred to the sealing material (7).
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: April 21, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Takashi Kawamori, Naoya Suzuki
  • Publication number: 20200119399
    Abstract: The present invention provides, as one aspect, an electrolytic solution comprising a compound represented by the following formula (1) and a compound represented by the following formula (2): wherein R1 to R3 each independently represent an alkyl group or a fluorine atom, R4 represents an alkylene group, and R5 represents an organic group comprising a sulfur atom and not comprising a nitrogen atom; and wherein R6 to R8 each independently represent an alkyl group or a fluorine atom, R9 represents an alkylene group, and R10 represents an organic group comprising a nitrogen atom and not comprising a sulfur atom.
    Type: Application
    Filed: April 3, 2018
    Publication date: April 16, 2020
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Kaoru KONNO, Kumpei YAMADA, Ryuichiro FUKUTA
  • Patent number: 10612614
    Abstract: Provided is a friction material composition capable of giving friction materials which, although low in copper or copper-alloy content, have excellent fade resistance at high temperature and give a satisfactory pedal feeling during braking. The friction material composition has a binder, a fibrous base material, an inorganic filler, and an organic filler, and contains no copper or has a copper content of 0.5 mass or less. The inorganic filler contains two ?-alumina powders, i.e., a first ?-alumina powder, which has a median diameter (D50) of 0.8-60 ?m, and a second ?-alumina powder, which has a median diameter (D50) of 80-400 ?m.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: April 7, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Shouqi Sun, Akihito Magara
  • Publication number: 20200102419
    Abstract: An object of the present invention is to improve the service life of an organic light emitting element. In order to solve the above problem, a curable polymer according to the present invention includes a macromolecule including a main chain having a conjugating monomer and a side chain having a crosslinking group, and the macromolecule is doped with holes.
    Type: Application
    Filed: June 1, 2018
    Publication date: April 2, 2020
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Akihiro SANO, Yuki YOSHINARI
  • Patent number: 10604641
    Abstract: The present invention provides a thermosetting resin composition comprising (A) a metal salt of disubstituted phosphinic acid, (B) a maleimide compound having a N-substituted maleimide group in a molecule, (C) a 6-substituted guanamine compound or dicyandiamide and (D) an epoxy resin having at least two epoxy groups in a molecule and a prepreg and a laminated plate which are prepared by using the same. The prepregs obtained by impregnating or coating a base material with the thermosetting resin compositions of the present invention and the laminated plates produced by laminating and molding the above prepregs are balanced in all of a copper foil adhesive property, a glass transition temperature, a solder heat resistance, a moisture absorption, a flame resistance, a relative dielectric constant and a dielectric loss tangent, and they are useful as a printed wiring board for electronic instruments.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: March 31, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Shinji Tsuchikawa, Masanori Akiyama, Tomohiko Kotake
  • Patent number: 10609823
    Abstract: A method for manufacturing a multilayer wiring board includes a step (1) and a step (2). The step (1) disposes a hole for through-hole, a squirt of metal foils, and a lower space. The squirt of the metal foils on both the sides of the insulating layer is formed at an opening of the hole for through-hole. The lower space is formed between the squirt of the metal foils and an inner wall of the hole for through-hole. The step (2) plugs up the hole for through-hole by forming an electrolytic filled plating layer at an inside of the hole for through-hole and on the metal foils on both the sides of the insulating layer. The plugging of the hole for through-hole in the step (2) is performed by once decreasing a current density of an electrolytic filled plating in a middle of the electrolytic filled plating and then increasing the current density again.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: March 31, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventor: Nobuyuki Yoshida
  • Patent number: 10598622
    Abstract: A permeability evaluation method for evaluating permeability of heavy metal ions through a specimen, comprising a step of, in a state in which a first liquid containing heavy metal ions and a second liquid containing water and an organic solvent are separated by a specimen, applying a voltage between a positive electrode provided on the side of the first liquid and a negative electrode provided on the side of the second liquid and measuring the value of the current flowing between the positive electrode and the negative electrode, wherein the specimen contains an insulating material used in semiconductor production, and the heavy metal ion concentration of the first liquid is 0.5 mg/kg or more.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: March 24, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Koji Suzumura, Kazuhiro Yamamoto, Tomoko Murahashi
  • Patent number: 10597485
    Abstract: A production method for a glassy liquid-crystalline epoxy resin, comprising a process of cooling a liquid-crystalline epoxy resin to cause transition into a glassy state.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: March 24, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Shingo Tanaka, Tomoko Higashiuchi, Naoki Maruyama, Kazumasa Fukuda, Yoshitaka Takezawa, Fusao Hojo
  • Patent number: 10601044
    Abstract: A negative electrode material for a lithium-ion secondary battery, in which the negative electrode material includes a composite particle including a spherical graphite particle and plural graphite particles that have a compressed shape and that aggregate or are combined so as to have nonparallel orientation planes, and the negative electrode material has an R-value in a Raman measurement of from 0.03 to 0.10, and has a pore volume as obtained by mercury porosimetry of from 0.2 mL/g to 1.0 mL/g in a pore diameter range of from 0.1 ?m to 8 ?m.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: March 24, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Hideyuki Tsuchiya, Takashi Sakamoto, Takeshi Masayoshi
  • Publication number: 20200088731
    Abstract: A method for detecting HER2-positive cancer cells, comprising steps of: (a) fixing and then permeabilizing cells; (b) contacting a primary antibody that recognizes an intracellular epitope of HER2 with the cells and then contacting a secondary antibody that recognizes the primary antibody and is labeled with a fluorescent dye; and (c) irradiating the cells with excitation light for the fluorescent dye and detecting fluorescence emitted from the cells is provided. According to such a method, HER2-positive cancer cells can be detected with high sensitivity.
    Type: Application
    Filed: December 22, 2016
    Publication date: March 19, 2020
    Applicant: Hitachi Chemical Company, Ltd.
    Inventors: Seita Nakamura, Satomi Yagi, Katsuya Endo, Masayuki Higuchi
  • Patent number: 10590001
    Abstract: The invention relates to an aerogel composite comprising an aerogel component and a silica particle, and being superior in thermal insulation properties and flexibility.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: March 17, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Tomohiko Kotake, Masato Miyatake, Hikari Murai