Patents Assigned to Tosoh Corporation
  • Publication number: 20200199296
    Abstract: To provide a highly heat resistant flame retardant. A polymer having repeating units represented by the following formula (1), which has a weight average molecular weight as calculated as standard polystyrene of at least 6,000: wherein R is a C1-6 alkylene group, —S— or —SO2—.
    Type: Application
    Filed: July 9, 2018
    Publication date: June 25, 2020
    Applicant: TOSOH CORPORATION
    Inventors: Takeshi KANBARA, Tomohiro ARITA
  • Publication number: 20200191783
    Abstract: To provide a measurement system in which the reaction rate of the antigen-antibody reaction is high, and a B/F separation step can easy be carried out. A method for detecting a substance to be detected, which comprises bringing a) a first recognizing substance bound to a fibrous substance, b) a second recognizing substance which is labeled, and c) a substance to be detected, provided that the first recognizing substance and the second recognizing substance are capable of being bound to the substance to be detected, into contact with one another in a dispersed state so as to form a complex in which the above a, b and c are bound together, separating the complex and an unbound b, and detecting the label of the obtained complex.
    Type: Application
    Filed: August 4, 2017
    Publication date: June 18, 2020
    Applicant: TOSOH CORPORATION
    Inventors: Takao MATSUBA, Ryuji KOBAYASHI, Yu MUTO, Yasutoshi KAWAI
  • Patent number: 10682831
    Abstract: A composite plate has a thickness of 2 mm or less, which is obtained by laminating and closely fixing a zirconia sintered body and a fiber-reinforced plastic with each other, and the thickness ratio of the zirconia sintered body to the fiber-reinforced plastic is 0.01 to 1, and the apparent density of the composite plate is 4.3 g/cm3 or less. A composite plate has a thickness of 2 mm or less, which is obtained by laminating and closely fixing a zirconia sintered body and a fiber-reinforced plastic with each other, and the maximum roughness depth of the surface of the zirconia sintered body is 50 ?m or less per 1 cm2.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: June 16, 2020
    Assignee: TOSOH CORPORATION
    Inventors: Isao Yamashita, Kohei Imai, Shoichi Yamauchi, Koji Tsukuma
  • Patent number: 10676369
    Abstract: Provided is a production method by which an AEI zeolite is obtained without inducing a structural transformation in a crystalline aluminosilicate having a Y-structure and without using fluorine or phosphorus, the method including a crystallization step of crystallizing a composition containing an alumina source, a silica source, a structure directing aunt, a sodium source, and water, a weight proportion of crystalline aluminosilicate relative to a total weight of the alumina source and the silica source being from 0 wt. % to 10 wt. %, and the crystallization step satisfying at least one of the following conditions: a molar ratio of hydroxide ion to silica in the composition is 0.45 or greater, the composition contains a cation represented by (CH3)3RN+ (R represents an alkyl group having from 1 to 4 carbons, and the alkyl group may contain at least one substituent), and the crystallization time is 80 hours or longer.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: June 9, 2020
    Assignee: TOSOH CORPORATION
    Inventors: Tomoya Ishikawa, Hidekazu Aoyama, Takayoshi Mishima
  • Patent number: 10669208
    Abstract: An oxide sintered body is provided which does not splash from the target surface even at the time of high power film formation, has a high film formation rate, and is used in a sputtering target capable of providing a high-refractive-index film. An oxide sintered body is used which contains zinc, niobium, aluminum and oxygen as constituent elements and in which Nb/(Zn+Nb+Al)=0.076 to 0.289 and Al/(Zn+Nb+Al)=0.006 to 0.031, where Zn, Nb and Al denote contents of zinc, niobium and aluminum, respectively.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: June 2, 2020
    Assignee: TOSOH CORPORATION
    Inventors: Kenichi Itoh, Hiroyuki Hara, Shinichi Hara
  • Patent number: 10662277
    Abstract: Provided are: an isocyanate composition for producing a flexible foam that has good vibration absorption as a result of having a low rebound resilience rate and a low hysteresis loss rate even in a low-density area; a composition for forming a flexible foam in which the isocyanate composition is used; and a flexible foam production method in which the composition for forming a flexible foam is used. The composition for forming a flexible foam has a low hysteresis loss rate and high durability in, a high hardness range and in a low density range. The flexible foam production method uses this composition for forming a flexible foam. The flexible foam production method does not cause odor problems or the like, maintains the durability required of a flexible foam even when the density thereof is reduced, and achieves good riding comfort properties and high safety.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: May 26, 2020
    Assignee: TOSOH CORPORATION
    Inventors: Yoshihisa Okiyama, Naoya Yoshii, Keita Ishibashi, Hiroyuki Orito
  • Publication number: 20200140924
    Abstract: The present invention addresses the problem of providing: a reagent for extracting/amplifying a nucleic acid of a nucleic acid extraction target, the reagent being characterized in that a nucleic acid is conveniently extracted quickly and efficiently from the nucleic acid extraction target and inhibition of a nucleic acid amplification reaction is minimized, and the problem of providing a method for extracting or amplifying a nucleic acid using said reagent. The problems are solved by using a kit for extracting and amplifying a nucleic acid of a nucleic acid extraction target from a sample containing the nucleic acid extraction target, the kit including (i) a nucleic acid extraction reagent containing at least a surfactant having a steroid skeleton, (ii) ?-cyclodextrin having a C1-4 hydroxyalkyl group, and (iii) a nucleic acid amplification reagent.
    Type: Application
    Filed: March 7, 2018
    Publication date: May 7, 2020
    Applicant: TOSOH CORPORATION
    Inventor: Hiroshi SATO
  • Patent number: 10611817
    Abstract: The present invention addresses the first problem of providing an Fc-binding protein having improved stability, especially stability to heat and acid, of the Fc-binding protein, a method for producing this protein, and an antibody adsorbent using this protein. The present invention also addresses the second problem of providing a method that makes it possible to identify the presence or absence of glycosylation of an antibody, and a material to be used in this method. The first problem is solved by an Fc-binding protein having improved stability to heat and acid obtained by substituting amino acid residues at specific positions in the extracellular domain within human Fc?RIIIa with other specific amino acids, a method for producing this protein, and an antibody adsorbent using this protein. The second problem is solved by using an adsorbent capable of specifically adsorbing an antibody having a sugar chain, the adsorbent being obtained by immobilizing human Fc?RIIIa on an insoluble carrier.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: April 7, 2020
    Assignee: TOSOH CORPORATION
    Inventors: Yoshiharu Asaoka, Toru Tanaka, Teruhiko Ide
  • Patent number: 10603652
    Abstract: Provided are: a silver-carrying zeolite molded article in which aggregation of silver is inhibited and which has excellent capability of dispersing silver, when compared to conventional silver-carrying zeolite molded articles; and a method for producing the silver-carrying zeolite molded article. In the silver-carrying zeolite molded article, the molar ratio of Si/Al2 is 2.0-3.0, the molar ratio of (alkali metal+Ag)/Al is 0.9-1.1, the total amount of SiO2, Al2O3, Ag2O, and alkali metal oxides is 90 wt % or more, the contained amount of silver ions is 5 wt % or more, and only a single type of zeolite is contained. The molded article can be produced by subjecting a zeolite molded article having zeolite purity of 90% or more to an ion exchange treatment using a silver-containing aqueous solution.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: March 31, 2020
    Assignee: TOSOH CORPORATION
    Inventors: Keisuke Tokunaga, Shigeru Hirano, Yoju Shimizu, Hajime Funakoshi
  • Publication number: 20200095358
    Abstract: A novel copolymer suitable for an optical film which is excellent in optical characteristics and has high retardation even in a thin film state, and an optical film containing the same are provided. A copolymer excellent in optical characteristics and easy to form a composite with a different polymer, and an optical film composed of the same are also provided.
    Type: Application
    Filed: December 4, 2017
    Publication date: March 26, 2020
    Applicant: TOSOH CORPORATION
    Inventors: Yasuyoshi FUJII, Saki ITO
  • Publication number: 20200095405
    Abstract: To provide a resin composition comprising a cyclic polyolefin and an ethylene polymer, having excellent impact resistance and having high transparency maintained. A resin composition comprising from 5 to 95 parts by weight of a cyclic polyolefin (A) and from 5 to 95 parts by weight of an ethylene polymer (B) which satisfies the following requirements (a) to (d) (the total amount of (A) and (B) is 100 parts by weight): (a) the density is from 930 to 960 kg/m3; (b) MFR is from 0.1 to 15.0 g/10 min; (c) in molecular weight measurement by gel permeation chromatography, two peaks are observed, and the ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) is within a range of from 3.0 to 7.0; and (d) a fraction having Mn of at least 100,000 as obtained by molecular weight fractionation, has at least 0.15 long-chain branches per 1,000 carbon atoms of the main chain.
    Type: Application
    Filed: March 27, 2018
    Publication date: March 26, 2020
    Applicant: TOSOH CORPORATION
    Inventor: Shimpei HAMA
  • Publication number: 20200061225
    Abstract: To provide an aldehyde scavenger and a method for removing aldehydes by using the same, for quickly and continuously capturing aldehydes. An aldehyde scavenger comprising at least one O-substituted hydroxylamine or at least one chemically acceptable salt thereof, is used against an aldehyde generation source.
    Type: Application
    Filed: December 27, 2017
    Publication date: February 27, 2020
    Applicants: TOSOH CORPORATION, Sagami Chemical Research Institute
    Inventors: Yukinori SUDO, Takahiro MASUDA, Osamu KOBAYASHI, Takuri OZAKI, Kenji HIRAI
  • Patent number: 10555795
    Abstract: A zirconia sintered body is provided having a color tone equivalent to the color tone guides of various natural teeth and having the same aesthetics as a natural front tooth. The present invention provides a colored translucent zirconia sintered body comprising zirconia containing greater than 4.0 mol % and not greater than 6.5 mol % of yttria, less than 0.25 mol % of erbia, less than 2,000 ppm of iron oxide in terms of Fe2O3, less than 0.01 wt. % of cobalt oxide in terms of CoO, and less than 0.1 wt. % of alumina; the zirconia sintered body having a relative density of not less than 99.90%, a total light transmittance of not less than 25% and less than 40% for light having a wavelength of 600 nm at a sample thickness of 1.0 mm, and a strength of not less than 500 MPa.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: February 11, 2020
    Assignee: TOSOH CORPORATION
    Inventors: Hiroyuki Fujisaki, Kiyotaka Kawamura
  • Patent number: 10556802
    Abstract: Provided is a method for producing an AEI zeolite without the use of a zeolite Y and a raw material containing fluorine and phosphorus, the method including a crystallization step of crystallizing a composition containing a structure directing agent, a sodium source, water, and a zeolite having at least one of the following structures as a silica alumina source.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: February 11, 2020
    Assignee: TOSOH CORPORATION
    Inventors: Yasuyuki Takamitsu, Tomoya Ishikawa, Mitsuaki Yoshimitsu
  • Patent number: 10550040
    Abstract: Provided is a zirconia sintered body that uses coloring of cerium oxide, the zirconia sintered body exhibiting a bright red color. The zirconia sintered body includes an oxide of cerium is an amount of 0.5% by mole or more and less than 4% by mole in terms of CeO2, yttria in an amount of 2% by mole or more and less than 6% by mole, an oxide of aluminum in an amount of 0.1% by weight or more and less than 2% by weight, and the balance being zirconia. The oxide of cerium contains trivalent cerium, and the zirconia has a crystal structure including a tetragonal phase.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: February 4, 2020
    Assignee: TOSOH CORPORATION
    Inventors: Shoichi Yamauchi, Takeshi Ito, Satoshi Tsuchiya
  • Patent number: 10513439
    Abstract: Provided is a production method by which an AEI zeolite is obtained without inducing a structural transformation in a crystalline aluminosilicate having a Y-structure and without using fluorine or phosphorus, the method including a crystallization step of crystallizing a composition containing an alumina source, a silica source, a structure directing agent, a sodium source, and water, a weight proportion of crystalline aluminosilicate relative to a total weight of the alumina source and the silica source being from 0 wt. % to 10 wt. %, and the crystallization step satisfying at least one of the following conditions: a molar ratio of hydroxide ion to silica in the composition is 0.45 or greater, the composition contains a cation represented by (CH3)3RN+ (R represents an alkyl group having from 1 to 4 carbons, and the alkyl group may contain at least one substituent), and the crystallization time is 80 hours or longer.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: December 24, 2019
    Assignee: TOSOH CORPORATION
    Inventors: Tomoya Ishikawa, Hidekazu Aoyama, Mitsuaki Yoshimitsu, Seiji Maehama, Takayoshi Mishima, Yasuyuki Takamitsu
  • Publication number: 20190336938
    Abstract: A xenon adsorbent capable of efficiently adsorbing xenon, even at a low concentration, from a mixture gas is Provided. A xenon adsorbent comprising a zeolite having a pore size in the range of 3.5 to 5 ? and a silica alumina molar ratio in the range of 10 to 30.
    Type: Application
    Filed: December 26, 2017
    Publication date: November 7, 2019
    Applicant: TOSOH CORPORATION
    Inventors: Shigeru HIRANO, Keisuke TOKUNAGA, Hiroshi OKANIWA, Megu FUKUI
  • Publication number: 20190337813
    Abstract: Provided is a production method by which an AEI zeolite is obtained without inducing a structural transformation in a crystalline aluminosilicate having a Y-structure and without using fluorine or phosphorus, the method including a crystallization step of crystallizing a composition containing an alumina source, a silica source, a structure directing aunt, a sodium source, and water, a weight proportion of crystalline aluminosilicate relative to a total weight of the alumina source and the silica source being from 0 wt. % to 10 wt. %, and the crystallization step satisfying at least one of the following conditions: a molar ratio of hydroxide ion to silica in the composition is 0.45 or greater, the composition contains a cation represented by (CH3)3RN+ (R represents an alkyl group having from 1 to 4 carbons, and the alkyl group may contain at least one substituent), and the crystallization time is 80 hours or longer.
    Type: Application
    Filed: July 12, 2019
    Publication date: November 7, 2019
    Applicant: TOSOH CORPORATION
    Inventors: Tomoya ISHIKAWA, Hidekazu AOYAMA, Takayoshi MISHIMA
  • Publication number: 20190300763
    Abstract: To provide an adhesive excellent in adhesion to a thermoplastic resin and an ethylene/vinyl alcohol copolymer. An adhesive comprising a hydrolyzate of a resin composition containing a thermoplastic resin (A), a copolymer (B) of ethylene and a vinyl ester and/or an acrylic acid ester having a vinyl ester and/or acrylic acid ester content higher by at least 5 mol % than (A); and a modified product having (A) grafted by (B), and an adhesive resin composition comprising it.
    Type: Application
    Filed: May 17, 2017
    Publication date: October 3, 2019
    Applicant: TOSOH CORPORATION
    Inventors: Daisuke KAWATO, Midori TAKAYAMA, Makoto OODAKE, Shingo KOUDA
  • Publication number: 20190300438
    Abstract: A zirconia sintered body contains aluminum, cobalt, and manganese and a remaining portion consisting of yttria-containing zirconia. In an oxide exchange, aluminum content is 5.0 wt % or more and 30.0 wt % or less, cobalt content is 0.1 wt % or more and 2.0 wt % or less, and manganese content is 0.5 wt % or more and 7.0 wt % or less.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 3, 2019
    Applicant: TOSOH CORPORATION
    Inventors: Hitoshi NAGAYAMA, Hajime FUNAKOSHI, Hiroyuki FUJISAKI