Patents Assigned to Tosoh Corporation
  • Patent number: 10815564
    Abstract: An oxide sintered body containing indium, hafnium, tantalum, and oxygen as constituent elements, in which when indium, hafnium, and tantalum are designated as In, Hf, and Ta, respectively, the atomic ratio of Hf/(In+Hf+Ta) is equal to 0.002 to 0.030, and the atomic ratio of Ta/(In+Hf+Ta) is equal to 0.0002 to 0.013.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: October 27, 2020
    Assignee: TOSOH CORPORATION
    Inventors: Ryo Akiike, Yuya Tsuchida, Hideto Kuramochi
  • Patent number: 10815289
    Abstract: Provided are: an Fc-binding protein having improved stability, particularly to heat and acid; a method for producing the protein; an antibody adsorbent using the protein; and a method for separating the antibodies using the adsorbent. Specifically provided are: an Fc-binding protein having improved stability to heat and acid, achieved by substituting an amino-acid residue in a specific position in the extracellular region of human FcyRIIIa with another specific amino acid; a method for producing the protein; an antibody adsorbent using the protein; and a method for separating the antibodies using the adsorbent.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: October 27, 2020
    Assignee: TOSOH CORPORATION
    Inventors: Yoshiharu Asaoka, Toru Tanaka, Yosuke Terao, Naoki Yamanaka, Natsuko Kizu, Masaru Aoki, Teruhiko Ide
  • Publication number: 20200283779
    Abstract: The present invention addresses the problem of providing FcRn having improved stability with respect to heat and acids, a method for producing said FcRn, an antibody adsorbent in which said FcRn is used, and an antibody isolation method in which said adsorbent is used. The above problem is solved by substituting an amino acid residue at a specific position in an extracellular region of a human FcRn ? chain and/or a ?2 microglobulin region of a human FcRn ? chain by another specific amino acid.
    Type: Application
    Filed: April 13, 2018
    Publication date: September 10, 2020
    Applicant: TOSOH CORPORATION
    Inventors: Yosuke TERAO, Naoki YAMANAKA, Natsuko KIZU, Satoshi ENDO, Seigo OE
  • Publication number: 20200283341
    Abstract: There is provided at least any of a layered body which has a change in color tone and in which it is unnecessary to select a colorant and the content of the colorant in consideration of a difference in the sintering behavior between layers, a precursor thereof, or a method for producing these. Provided is a layered body which has a structure, in which two or more layers containing stabilizer-containing zirconia and a colorant are layered, and in which types and contents of the colorants contained in the layers are equal to each other, the layered body including at least: a first layer containing a colorant and zirconia which has a stabilizer content of higher than or equal to 3.3 mol %; and a second layer containing a colorant and zirconia which has a stabilizer content different from that of the zirconia contained in the first layer.
    Type: Application
    Filed: February 26, 2020
    Publication date: September 10, 2020
    Applicant: TOSOH CORPORATION
    Inventors: Yuki USHIO, Yuuki ITO, Sho AZECHI, Hiroyuki FUJISAKI
  • Publication number: 20200283343
    Abstract: Provided is at least any of a layered body, which has a change in texture derived from zirconia, particularly a change in translucency and is suitable as a dental prosthetic member, a precursor thereof, or a method for producing these. There is provided a layered body having a structure in which two or more layers containing zirconia containing a stabilizer are layered, the layered body including at least: a first layer containing zirconia having a stabilizer content of higher than or equal to 4 mol %; and a second layer containing zirconia having a stabilizer content different from that of the zirconia contained in the first layer.
    Type: Application
    Filed: February 26, 2020
    Publication date: September 10, 2020
    Applicant: TOSOH CORPORATION
    Inventors: Yuki USHIO, Akiko ITO, Sho AZECHI, Hiroyuki FUJISAKI
  • Patent number: 10752977
    Abstract: To provide a palladium separating agent capable of separating palladium ions from a solution containing palladium ions of a low concentration to a high concentration in a short time with a high selectivity, and a method for separating palladium. A palladium separating agent having a functional group represented by the formula (1) bonded to a carrier: —Z—(CH2)n-S—R??(1) wherein R is a C1-18 chain hydrocarbon group, a C3-10 alicyclic hydrocarbon group, a C6-14 aromatic hydrocarbon group, a carboxymethyl group or a carboxyethyl group, n is an integer of from 1 to 4, and Z is an amide bond.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: August 25, 2020
    Assignee: TOSOH CORPORATION
    Inventors: Yukinori Sudo, Takahiro Masuda, Setsuo Yoshida
  • Publication number: 20200262759
    Abstract: A zirconia sintered body comprising 3.0 wt % or more and 30.0 wt % or less of aluminum in terms of Al2O3 and a remainder is zirconia containing 2 mol % or more and 4 mol % or less of erbia, in which the zirconia sintered body includes grains of aluminum oxide, and a total light transmittance with respect to a D65 light source at a sample thickness of 1.0 mm is 10% or less.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 20, 2020
    Applicant: TOSOH CORPORATION
    Inventors: Hitoshi NAGAYAMA, Hajime FUNAKOSHI, Hiroyuki FUJISAKI, Takashi TSUKIMORI
  • Patent number: 10749178
    Abstract: Provided is a production method for a composite active material for lithium secondary batteries which enables production of an electrode material in which volume expansion is suppressed even after repeated charging and discharging, and enables production of a lithium secondary battery exhibiting excellent cycle characteristics. A composite active material for lithium secondary batteries is produced using a mixing step of mixing graphite having a specific surface area of not less than 30 m2/g, silicon monoxide, and a carbon precursor to obtain a mixture; a conglobation step of performing conglobation treatment on the mixture and obtaining a spherical mixture; and a heating step of heat-treating the spherical mixture and producing a substantially spherical composite active material for lithium secondary batteries.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: August 18, 2020
    Assignee: TOSOH CORPORATION
    Inventor: Ryo Tamaki
  • Publication number: 20200256872
    Abstract: The present invention provides a method for detecting cancer in a simple and highly accurate manner, and a reagent that can be used in the method. According to the present invention, cancer (excluding castration-resistant prostate cancer) is detected by measuring the intact growth and differentiation factor (GDF15) propeptide level, the GDF15 propeptide fragment level, or the total of the intact GDF15 propeptide level and the GDF15 propeptide fragment level, in a sample. The above described method for detecting cancer includes a method for detecting one or more selected from the group consisting of stomach cancer, pancreatic cancer, colorectal cancer, lung cancer, breast cancer and esophageal cancer, and a method for distinguishing and detecting non-small cell lung cancer and small cell lung cancer. Further, a reagent for detecting cancer includes an antibody that specifically recognizes GDF15 propeptide.
    Type: Application
    Filed: August 22, 2018
    Publication date: August 13, 2020
    Applicant: TOSOH CORPORATION
    Inventors: Shohei MYOBA, Norihisa OHTAKE
  • Publication number: 20200223756
    Abstract: Provided are a zirconia sintered body capable of being widely used as a dental material, in particular, a zirconia sintered body capable of being applied to both a dental material for a back tooth and a dental material for a front tooth and a simple and easy method for manufacturing the zirconia sintered body. The method for manufacturing a zirconia sintered body includes a molding step of molding a powder composition that has an yttria content of more than 3% by mole and 5.2% by mole or less and that contains a first zirconia powder having an yttria content of 2% by mole or more and 4% by mole or less and a second zirconia powder having an yttria content of more than 4% by mole and 6% by mole or less to obtain a green body, and a sintering step of sintering the green body to obtain a sintered body.
    Type: Application
    Filed: March 19, 2018
    Publication date: July 16, 2020
    Applicant: TOSOH CORPORATION
    Inventors: Kiyotaka KAWAMURA, Akiko ITO, Hiroyuki FUJISAKI, Sho AZECHI
  • Publication number: 20200223885
    Abstract: The present application addresses the problem of providing an Fc-binding protein having an improved antibody separation ability. The present application also addresses the problem of providing a high-accuracy antibody separation method using an insoluble carrier having the protein immobilized thereon. The problems can be solved by: an Fc-binding protein in which at least an amino acid substitution at a specific position therein occurs and which has reduced affinity for an antibody; and an antibody separation method including allowing an equilibration buffer solution to pass through a column in which an insoluble carrier having the protein immobilized thereon is filled to equilibrate the column, adding a solution containing an antibody to cause the adsorption of the antibody onto the carrier, and eluting the antibody adsorbed on the carrier using an elution solution.
    Type: Application
    Filed: February 7, 2018
    Publication date: July 16, 2020
    Applicant: TOSOH CORPORATION
    Inventors: Yosuke TERAO, Yoshiharu ASAOKA, Ryoko OTAKE, Satoshi ENDO, Naoki YAMANAKA, Yukie YAMAMOTO, Seigo OE
  • Patent number: 10696022
    Abstract: A composite plate having a thickness of no more than 2 mm, and having laminated therein a zirconia sintered body, an adhesive layer, and a base material, the elasticity of the base material being no more than 100 GPa, and the apparent density of the composite plate being no more than 4.3 g/cm3.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: June 30, 2020
    Assignee: TOSOH CORPORATION
    Inventors: Isao Yamashita, Kohei Imai, Shoichi Yamauchi, Koji Tsukuma
  • Patent number: 10696767
    Abstract: To provide vinyl chloride-vinyl acetate copolymer particles, which have a small change with time in sol viscosity when kneaded together with a plasticizer and are excellent in the mechanical strength during low temperature processing, and applications represented by a coating agent, particularly an automobile underbody coating or an automotive sealant. Vinyl chloride-vinyl acetate copolymer particles comprising a vinyl chloride-vinyl acetate copolymers in which a vinyl acetate residue unit content is continuously distributed in a range of 0 to 30% by weight and the distribution has one local maximum, and which has an average polymerization degree of 1,500 to 3,000 and an average vinyl acetate residue unit content of 5 to 15% by weight, and wherein an average diameter of a primary particle of the vinyl chloride-vinyl acetate copolymers is from 1 to 2 ?m.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: June 30, 2020
    Assignee: TOSOH CORPORATION
    Inventor: Kazunori Watanabe
  • 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