Patents Assigned to Tosoh Corporation
  • Publication number: 20230068345
    Abstract: Provided is a method of stabilizing a perfluorodioxolane compound, which includes having a quinone compound present in a composition containing a perfluorodioxolane compound, wherein the perfluorodioxolane compound is one or more perfluorodioxolane compounds selected from the group consisting of a perfluorodioxolane compound denoted by general formula (1) and a perfluorodioxolane compound denoted by general formula (2).
    Type: Application
    Filed: December 25, 2020
    Publication date: March 2, 2023
    Applicants: TOSOH CORPORATION, TOSOH FINECHEM CORPORATION
    Inventors: Daisuke INOUE, Yusuke SESOKO, Hiroshi MATSUO, Hiroki TAKAMIYA, Hideyuki MIMURA, Tomoya SHIMONO, Tomonari NAGAI
  • Publication number: 20230053846
    Abstract: A problem to be addressed by the present invention is to provide: a method for detecting bone metastasis of cancer (excluding castration resistant prostate cancer) in a simple and highly accurate manner; and a reagent that can be used in the method. Bone metastasis of cancer (excluding castration resistant prostate cancer) is detected by measuring an intact growth and differentiation factor 15 (GDF15) propeptide level, a GDF15 propeptide fragment level, and the total of an intact GDF15 propeptide level and a GDF15 propeptide fragment level in a sample. The above described method for detecting bone metastasis of cancer includes a method for detecting bone metastasis of prostate cancer other than castration resistant prostate cancer, renal cancer, lung cancer, breast cancer, thyroid cancer, pancreatic cancer, bladder cancer, colon cancer, melanoma, myeloma, or lymphoma.
    Type: Application
    Filed: November 13, 2020
    Publication date: February 23, 2023
    Applicants: OSAKA UNIVERSITY, TOSOH CORPORATION
    Inventors: Motohide UEMURA, Norio NONOMURA, Takeshi UJIKE, Shohei MYOBA, Norihisa OHTAKE
  • Publication number: 20230059218
    Abstract: To provide an agent for rapidly capturing aldehydes and carboxylic acids even in a neutral range in the vicinity of pH=7. Against aldehydes and carboxylic acids, a deodorant comprising a carboxy group-containing O-substituted monohydroxylamine or a chemically acceptable salt thereof, and an amine, is used.
    Type: Application
    Filed: February 3, 2021
    Publication date: February 23, 2023
    Applicant: TOSOH CORPORATION
    Inventor: Yukinori SUDO
  • Publication number: 20230047882
    Abstract: A method of detecting a particular protein contained in an extracellular vesicle, the method including the steps of: (A) capturing the extracellular vesicle using a carrier capable of binding to an extracellular-vesicle-specific marker present on the surface of the extracellular vesicle; (B) carrying out membrane permeabilization treatment for the extracellular vesicle captured by the carrier, using a membrane permeabilization treatment agent; and (C) introducing a reagent capable of detecting the particular protein contained in the extracellular vesicle, into the membrane-permeabilized extracellular vesicle; wherein Step (B) is carried out such that the particular protein does not leak to the outside of the extracellular vesicle, and such that the reagent can be introduced into the extracellular vesicle.
    Type: Application
    Filed: December 24, 2020
    Publication date: February 16, 2023
    Applicant: TOSOH CORPORATION
    Inventors: Yasuyuki AKIYAMA, Norihisa OHTAKE
  • Publication number: 20230049879
    Abstract: There are provided an aqueous electrolyte solution having an extended potential window, in particular, an aqueous electrolyte solution whose potential window is further wider than those exhibited by conventional concentrated aqueous electrolyte solutions, and an aqueous electrolyte solution in which the cycle characteristics can be improved. A non-aqueous electrolyte solution capable of achieving a higher energy density is provided, the non-aqueous electrolyte solution containing easily available and inexpensive materials and having further improved characteristics. One aqueous electrolyte solution of the present embodiment contains a salt of at least one selected from the group consisting of sodium, magnesium, potassium and lithium, and a chaotropic additive. One other non-aqueous electrolyte solution of the present embodiment contains a salt of at least one selected from the group consisting of sodium, magnesium, potassium and lithium, and a chaotropic additive.
    Type: Application
    Filed: November 2, 2020
    Publication date: February 16, 2023
    Applicants: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, TOSOH CORPORATION
    Inventors: Shigeto OKADA, Ryo SAKAMOTO, Masato ITO, Kotaro USHIJIMA, Toshiya TAKAHARA, Wataru KOBAYASHI, Masaki OKADA
  • Publication number: 20230028313
    Abstract: A zirconia powder is provided comprising a yttria source and zirconia, wherein a content of the yttria source is 4.5 mol % or more and 6.5 mol % or less and the remainder is zirconia, a ratio of a total of tetragonal and cubic crystals to an entire crystal phase of zirconia is 90% or less, a BET specific surface area is 7.5 m2/g or more and 15 m2/g or less, and an average crystallite size is 325 ? or greater. The powders are useful in producing sintered bodies having the mechanical strength and the translucency desired for use in dental prosthetic materials, and precursors thereof.
    Type: Application
    Filed: September 14, 2022
    Publication date: January 26, 2023
    Applicant: TOSOH CORPORATION
    Inventors: Akiko ITO, Ayako WATANABE, Sho AZECHI, Hitoshi NAGAYAMA, Hiroyuki FUJISAKI
  • Publication number: 20230014792
    Abstract: To provide a sintered body with improved impact resistance due to impact absorption through plastic deformation before brittle fracture for an impact exceeding the fracture resistance of the sintered body, and/or a method for producing the sintered body. A sintered body including: zirconia containing a stabilizer; and a region in which an impact mark is formed when an impact force is applied.
    Type: Application
    Filed: December 8, 2020
    Publication date: January 19, 2023
    Applicant: TOSOH CORPORATION
    Inventors: Taku FUKIAGE, Hitoshi NAGAYAMA, Kenta KAWAMURA, Takashi TSUKIMORI, Hiroyuki FUJISAKI
  • Patent number: 11555093
    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: Grant
    Filed: July 9, 2018
    Date of Patent: January 17, 2023
    Assignee: TOSOH CORPORATION
    Inventors: Takeshi Kanbara, Tomohiro Arita
  • Patent number: 11555807
    Abstract: A method for measuring a proportion of sA1c (%), which includes, when a peak derived from abnormal hemoglobin D, abnormal hemoglobin S or abnormal hemoglobin C is identified, calculation of the peak area, and measurement of the proportion of sA1c (%) corrected by using the calculation results. Results of measurement are obtained, by cation exchange chromatography, of sA1c (%) with a subject who provided a blood sample containing abnormal hemoglobin D, abnormal hemoglobin S or abnormal hemoglobin C by eliminating influences by such abnormal hemoglobin.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: January 17, 2023
    Assignee: TOSOH CORPORATION
    Inventor: Sachiyuki Hasegawa
  • Patent number: 11555024
    Abstract: Provided is a method of manufacturing a trifluoropyruvyl fluoride dimer, including a reaction step of reacting hexafluoropropylene oxide and aldehyde.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: January 17, 2023
    Assignees: TOSOH CORPORATION, TOSOH FINECHEM CORPORATION
    Inventors: Hideki Miyauchi, Hiroshi Matsuo, Takumi Kagawa, Norihisa Kondo, Hideyuki Mimura
  • Patent number: 11548825
    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: Grant
    Filed: February 26, 2020
    Date of Patent: January 10, 2023
    Assignee: TOSOH CORPORATION
    Inventors: Yuki Ushio, Akiko Ito, Sho Azechi, Hiroyuki Fujisaki
  • Publication number: 20230002342
    Abstract: Provided is a method of producing perfluoro(2,4-dimethyl-2-fluoroformyl-1,3-dioxolane, the method having a dimer reaction step of reacting a trifluoropyruvic acid fluoride dimer with hexafluoropropylene oxide in an organic solvent in the presence of one or more fluorides selected from the group consisting of potassium fluoride and sodium fluoride to obtain perfluoro(dimethyl-2-oxo-1,4-dioxane).
    Type: Application
    Filed: October 2, 2020
    Publication date: January 5, 2023
    Applicants: SAGAMI CHEMICAL RESEARCH INSTITUTE, TOSOH CORPORATION, TOSOH FINECHEM CORPORATION
    Inventors: Munenori INOUE, Tatsuya UEJI, Hiroshi MATSUO
  • Patent number: 11542201
    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: Grant
    Filed: February 26, 2020
    Date of Patent: January 3, 2023
    Assignee: TOSOH CORPORATION
    Inventors: Yuki Ushio, Yuuki Ito, Sho Azechi, Hiroyuki Fujisaki
  • Patent number: 11542301
    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: Grant
    Filed: February 7, 2018
    Date of Patent: January 3, 2023
    Assignee: TOSOH CORPORATION
    Inventors: Yosuke Terao, Yoshiharu Asaoka, Ryoko Otake, Satoshi Endo, Naoki Yamanaka, Yukie Yamamoto, Seigo Oe
  • Patent number: 11535565
    Abstract: A sintered body includes a solid solution containing cobalt and iron, with the balance being zirconia. The total content of cobalt in terms of CoO and iron in terms of Fe2O3 is more than 0.1 wt % and less than 3.0 wt %, and the proportion of cobalt regions larger than 5.5 ?m2 in an elemental map obtained using an electron probe microanalyzer is 25% or less.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: December 27, 2022
    Assignee: TOSOH CORPORATION
    Inventors: Takeshi Ito, Shoichi Yamauchi, Isao Yamashita
  • Publication number: 20220402995
    Abstract: The present invention provides an improved adeno-associated virus (AAV)-binding protein having enhanced stability, especially, heat stability, acid stability and alkali stability, of an AAV-binding protein, a method for producing the improved AAV-binding protein, and an AAV adsorbent using the same.
    Type: Application
    Filed: November 24, 2020
    Publication date: December 22, 2022
    Applicant: TOSOH CORPORATION
    Inventors: Yoshiharu ASAOKA, Hidetaka KOBAYASHI, Yuriko MAKINO, Kouhei YOSHIDA, Kento KURIHARA
  • Patent number: 11525765
    Abstract: The objective of the present invention is to provide a particle detection device and a particle detection method that can individually and continuously detect a wide range of particles. The objective is achieved by a particle detection device including: a particle separation channel through which particles are separated according to particle sizes in a perpendicular direction to the flow of fluid; and two or more particle recovery channels that are connected to and branched from the particle separation channel, in which each of the particle recovery channels includes a particle detection unit that includes an aperture and an electric detector.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: December 13, 2022
    Assignees: TOSOH CORPORATION, NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
    Inventors: Kazuki Iijima, Toshinobu Toyoshima, Kotohiro Furukawa, Koji Katayama, Naotaka Jin, Minoru Seki
  • Patent number: 11505700
    Abstract: The present invention provides a polyol composition that can secure the stability over time even when a large amount of water is blended in the polyol composition; a flexible polyurethane foam that uses the polyol composition, is low in density and is excellent in durability; and a method for producing the same. The above objects are solved by a polyol composition for molding a flexible polyurethane foam, comprising a polyol component; a catalyst; a foam stabilizer; a foaming agent; and a compatibilizing agent, wherein the compatibilizing agent is an anionic surfactant which has a hydrophilic portion having an alkali metal salt, and which has a hydrophobic portion having an aromatic ring or alternatively a hydrophobic portion not having an aromatic ring but containing 8 or more carbon atoms in total.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: November 22, 2022
    Assignee: TOSOH CORPORATION
    Inventors: Keita Ishibashi, Naoya Yoshii
  • Publication number: 20220355280
    Abstract: Provided are: novel zeolite having an extremely small amount of specific Bronsted acid sites on the surface thereof, which is expected to be useful as a catalyst for the aromatization of a non-aromatic hydrocarbon typified by an aliphatic hydrocarbon; and a catalyst for use in the production of an aromatic hydrocarbon, which comprises the zeolite. Zeolite characterized by satisfying the following requirements (i) to (iii). (i) The zeolite has an average particle diameter of 100 nm or less. (ii) The zeolite is 10-membered ring microporous zeolite. (iii) The amount of the Bronsted acid sites on the outer surface of the zeolite is 0.1 to 10.0 ?mol/g.
    Type: Application
    Filed: July 2, 2020
    Publication date: November 10, 2022
    Applicant: TOSOH CORPORATION
    Inventors: Amane OKUBO, Tomohiro HAYASHI, Ryo ISHIMOTO, Makoto HANAYA
  • Patent number: 11493510
    Abstract: 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: Grant
    Filed: August 4, 2017
    Date of Patent: November 8, 2022
    Assignee: TOSOH CORPORATION
    Inventors: Takao Matsuba, Ryuji Kobayashi, Yu Muto, Yasutoshi Kawai