Patents Assigned to Toda Kogyo Corporation
  • Publication number: 20140045068
    Abstract: The present invention provides positive electrode active substance particles which are improved in charge/discharge capacities, cycle characteristics and thermal stability. The positive electrode active substance particles according to the present invention comprise a compound having at least a crystal system belonging to a space group of R-3m and a crystal system belonging to a space group of C2/m and having a specific peak intensity ratio, in which a content of Mn in the compound is controlled such that a molar ratio of Mn/(Ni+Co+Mn) therein is not less than 0.55; a content of boron in the compound is 0.01 to 1% by weight; a content of fluorine in the compound is 0.01 to 5% by weight; and a content of an element A (at least one element selected from the group consisting of Al, Mg, Ti, Zr, Ca, Fe, Zn, Mo and Bi) in the compound is 0.
    Type: Application
    Filed: March 22, 2012
    Publication date: February 13, 2014
    Applicant: TODA KOGYO CORPORATION
    Inventors: Manabu Yamamoto, Daisuke Nishikawa, Kouta Sano, Osamu Sasaki, Hideaki Sadamura
  • Publication number: 20140034872
    Abstract: The present invention provides a precursor of positive electrode active substance particles for non-aqueous electrolyte secondary batteries which have a high discharge voltage and a high discharge capacity, hardly suffer from side reactions with an electrolyte solution, and are excellent in cycle characteristics, positive electrode active substance particles for non-aqueous electrolyte secondary batteries, and processes for producing these particles, and a non-aqueous electrolyte secondary battery.
    Type: Application
    Filed: December 26, 2011
    Publication date: February 6, 2014
    Applicant: Toda Kogyo Corporation
    Inventors: Hiroyasu Watanabe, Daisuke Morita, Manabu Yamamoto, Kazumichi Koga, Akihisa Kajiyama, Hiroaki Masukuni, Hideaki Sadamura, Ryuta Masaki, Kazutoshi Matsumoto
  • Publication number: 20130330556
    Abstract: The present invention provides aniline black comprising no harmful substances such as chromium and copper in its products and having an excellent blackness and a high resistivity value, as well as provides a black resin composition, a water-based dispersion and a solvent-based dispersion which are colored with the aniline black and have an excellent dispersibility. The aniline black according to the present invention has a sulfur content of 0.2 to 6.0% by weight and comprises primary particles having an average major axis diameter of 0.05 to 0.80 ?m.
    Type: Application
    Filed: January 19, 2012
    Publication date: December 12, 2013
    Applicant: TODA KOGYO CORPORATION
    Inventors: Yusuke Shimohata, Kohei Uehara, Nobuya Shimo, Koso Aoki
  • Publication number: 20130330626
    Abstract: The present invention relates to Li—Ni-based composite oxide particles comprising Mn, and Co and/or Al, wherein Co and Al are uniformly dispersed within the particles, and Mn is present with a gradient of its concentration in a radial direction of the respective particles such that a concentration of Mn on a surface of the respective particles is higher than that at a central portion thereof. The Li—Ni-based composite oxide particles can be produced by allowing an oxide and a hydroxide comprising Mn to mechanically adhere to Li—Ni-based oxide comprising Co and/or Al; and then heat-treating the obtained material at a temperature of not lower than 400° C. and not higher than 1,000° C. The Li—Ni-based composite oxide particles of the present invention are improved in thermal stability and alkalinity.
    Type: Application
    Filed: August 15, 2013
    Publication date: December 12, 2013
    Applicant: TODA KOGYO CORPORATION
    Inventors: Akihisa KAJIYAMA, Kazuhiko KIKUYA, Teruaki SANTOKI, Osamu SASAKI, Satoshi NAKAMURA, Taiki IMAHASHI, Hideaki SADAMURA
  • Patent number: 8592085
    Abstract: The present invention relates to nickel-cobalt-manganese-based compound particles which have a volume-based average secondary particle diameter (D50) of 3.0 to 25.0 ?m, wherein the volume-based average secondary particle diameter (D50) and a half value width (W) of the peak in volume-based particle size distribution of secondary particles thereof satisfy the relational formula: W?0.4×D50, and can be produced by dropping a metal salt-containing solution and an alkali solution to an alkali solution at the same time, followed by subjecting the obtained reaction solution to neutralization and precipitation reaction. The nickel-cobalt-manganese-based compound particles according to the present invention have a uniform particle size, a less content of very fine particles, a high crystallinity and a large primary particle diameter, and therefore are useful as a precursor of a positive electrode active substance used in a non-aqueous electrolyte secondary battery.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: November 26, 2013
    Assignee: Toda Kogyo Corporation
    Inventors: Masashi Kobino, Katsuhiro Fujita, Shoichi Fujino, Akihisa Kajiyama, Ryuta Masaki, Daisuke Morita, Takayuki Yamamura, Tetsuya Kodaira, Minoru Yamasaki, Seiji Okazaki, Toshiaki Hiramoto, Akino Sato, Wataru Oda, Kenji Okinaka
  • Patent number: 8574765
    Abstract: Li—Ni composite oxide particles for a non-aqueous electrolyte secondary battery with a large charge/discharge capacity and excellent thermal stability in a charged condition. The Li—Ni composite oxide secondary particles form core particles having a composition Lix1Ni1-y1-z1-w1Coy1Mnz1Mw1O2 in which 0.9?x1?1.3; 0.1?y1?0.3; 0.0?z1?0.3; 0?w1?0.1; and M is Al or Fe. The Li—Ni composite oxide has a composition Lix2Ni1-y2-z2-w2Coy2Mnz2Mw2O2 in which 0.9?x2?1+z2; 0?y2?0.33; 0?z2?0.5; 0?w2?0.1; and M is Al, Fe, Mg, Zr or Ti and is coated or present on a surface of the secondary particles.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: November 5, 2013
    Assignee: Toda Kogyo Corporation
    Inventors: Kazuhiko Kikuya, Osamu Sasaki, Teruaki Santoki, Hiroshi Yamamoto
  • Publication number: 20130287679
    Abstract: A process for producing the porous catalyst body for decomposing hydrocarbons, the body containing at least magnesium, aluminum and nickel, and has a pore volume of 0.01 to 0.5 cm3/g, an average pore diameter of not more than 300 ? and an average crushing strength of not less than 3 kgf. The process includes molding hydrotalcite containing at least magnesium, aluminum and nickel, and calcining the resulting molded product at a temperature of 700 to 1500° C.
    Type: Application
    Filed: June 25, 2013
    Publication date: October 31, 2013
    Applicant: TODA KOGYO CORPORATION
    Inventors: Shinji TAKAHASHI, Naoya KOBAYASHI
  • Publication number: 20130265205
    Abstract: The present invention relates to a folded dipole antenna comprising a magnetic material comprising a hexagonal Z-type ferrite and/or a hexagonal Y-type ferrite as a main component in which a radiation element and a reflection element each having a folded dipole structure are disposed, and an RF tag comprising the folded dipole antenna and an IC chip connected to the folded dipole antenna. The RF tag according to the present invention has a smaller size than that of the conventional RF tags and is not susceptible to adverse influence from ambient environments, and can be operated at an UHF band or surrounding frequency bands thereof.
    Type: Application
    Filed: November 10, 2011
    Publication date: October 10, 2013
    Applicant: TODA KOGYO CORPORATION
    Inventors: Yoji Okano, Tetsuya Kimura, Kazumi Yamamoto, Takanori Doi, Yoshiro Sato
  • Publication number: 20130257573
    Abstract: The present invention relates to ferromagnetic particles comprising an Fe16N2 compound phase in an amount of not less than 70% as measured by Mössbauer spectrum, and at least one metal element X selected from the group consisting of Mn, Ni, Ti, Ga, Al, Ge, Zn, Pt and Si in such an amount that a molar ratio of the metal element X to Fe is 0.04 to 25%, the ferromagnetic particles having a BHmax value of not less than 5 MGOe, and a process for producing the ferromagnetic particles, and further relates to an anisotropic magnet or a bonded magnet which is obtained by magnetically orienting the ferromagnetic particles. The ferromagnetic particles according to the present invention can be produced in an industrial scale and are in the form of Fe16N2 particles comprising different kinds of metal elements having a large BHmax value.
    Type: Application
    Filed: September 22, 2011
    Publication date: October 3, 2013
    Applicants: TOHOKU UNIVERSITY, TODA KOGYO CORPORATION
    Inventors: Migaku Takahashi, Tomoyuki Ogawa, Yasunobu Ogata, Akimasa Sakuma, Naoya Kobayashi, Chammika Ruwan Polwatta Gallage, Kaori Kohara
  • Patent number: 8545713
    Abstract: The present invention relates to black magnetic iron oxide particles comprising magnetite as a main component, wherein when the black magnetic iron oxide particles are molded into a tablet shape, an electric resistance value of the tablet in an alternating current electric field is controlled to produce an impedance of not less than 2×106 ?cm as measured in a characteristic frequency range thereof. The black magnetic iron oxide particles according to the present invention can provide a toner capable of exhibiting a good charging performance and a uniform charging property under the high-temperature and high-humidity conditions, so that when developing an electrostatic latent image therewith, it is possible to obtain toner images having a high resolution or definition, and further the use of heavy metal elements in the black magnetic iron oxide particles can be minimized.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: October 1, 2013
    Assignee: Toda Kogyo Corporation
    Inventors: Ryo Iwai, Mamoru Kamigaki, Nobuya Shimo, Naoki Uchida
  • Patent number: 8546475
    Abstract: The present invention provides an inexpensive infrared reflecting black pigment which comprises Fe and Mn but comprises no harmful elements, and exhibits an excellent infrared reflecting property. The infrared reflecting black pigment according to the present invention comprises a compound comprising Fe, Mn and at least one element selected from the group consisting of Mg, Al, Ca, Si, Sr and Ba, and has a blackness (L* value) of not more than 30 and a solar radiation reflectance of not less than 15%.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: October 1, 2013
    Assignee: Toda Kogyo Corporation
    Inventors: Shinsuke Maruyama, Kazushi Nishimoto, Hiroshi Akai, Kazutoshi Sanada, Yasuhiko Fujii
  • Patent number: 8546018
    Abstract: The present invention relates to Li—Ni-based composite oxide particles comprising Mn, and Co and/or Al, wherein Co and Al are uniformly dispersed within the particles, and Mn is present with a gradient of its concentration in a radial direction of the respective particles such that a concentration of Mn on a surface of the respective particles is higher than that at a central portion thereof. The Li—Ni-based composite oxide particles can be produced by allowing an oxide and a hydroxide comprising Mn to mechanically adhere to Li—Ni-based oxide comprising Co and/or Al; and then heat-treating the obtained material at a temperature of not lower than 400° C. and not higher than 1,000° C. The Li—Ni-based composite oxide particles of the present invention are improved in thermal stability and alkalinity.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: October 1, 2013
    Assignee: Toda Kogyo Corporation
    Inventors: Akihisa Kajiyama, Kazuhiko Kikuya, Teruaki Santoki, Osamu Sasaki, Satoshi Nakamura, Taiki Imahashi, Hideaki Sadamura
  • Publication number: 20130244114
    Abstract: According to the present invention, there are provided lithium titanate particles which exhibit an excellent initial discharge capacity and an enhanced high-efficiency discharge capacity retention rate as an active substance for non-aqueous electrolyte secondary batteries and a process for producing the lithium titanate particles, and Mg-containing lithium titanate particles. The present invention relates to lithium titanate particles with a spinel structure comprising TiO2 in an amount of not more than 1.
    Type: Application
    Filed: August 29, 2011
    Publication date: September 19, 2013
    Applicant: Toda Kogyo Corporation
    Inventors: Akinori Yamamoto, Tomoko Okita, Hiroshi Yamamoto, Kohji Mori, Kazumichi Koga, Akihisa Kajiyama
  • Publication number: 20130206847
    Abstract: The present invention relates to a composite magnetic antenna for information communication utilizing a magnetic field component as well as a composite RF tag using the composite magnetic antenna, which can be embedded in metals while maintaining a sufficient communication sensitivity unlike conventional RF tags which were unusable in the metal embedding applications.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 15, 2013
    Applicant: TODA KOGYO CORPORATION
    Inventor: TODA KOGYO CORPORATION
  • Publication number: 20130184389
    Abstract: The present invention relates to a resin composition for pavement which comprises at least an ethylene-vinyl acetate copolymer having a vinyl acetate content of 25 to 45% by weight, a melting temperature of 40 to 100° C. and a melt flow rate of not less than 400 g/10 min, a petroleum-based process oil having an aromatic ring-derived carbon content (CA) of 20 to 40%, and a teleblock polymer. The resin composition for pavement according to the present invention can be melted for a short period of time, and is excellent in wettability and adhesion to an aggregate, and can provide a paved surface having an excellent durability which is free from problems such as deformation in the summer season and occurrence of cracks in the winter season.
    Type: Application
    Filed: October 10, 2008
    Publication date: July 18, 2013
    Applicant: TODA KOGYO CORPORATION
    Inventor: Toshiyuki Hakata
  • Publication number: 20130183587
    Abstract: The present invention aims at providing lithium manganate having a high output and an excellent high-temperature stability. The above aim can be achieved by lithium manganate particles having a primary particle diameter of not less than 1 ?m and an average particle diameter (D50) of kinetic particles of not less than 1 ?m and not more than 10 ?m, which are substantially in the form of single crystal particles and have a composition represented by the following chemical formula: Li1+xMn2-x-yYyO4 in which Y is at least one element selected from the group consisting of Al, Mg and Co; x and y satisfy 0.03?x?0.15 and 0.05?y?0.20, respectively, wherein the Y element is uniformly dispersed within the respective particles, and an intensity ratio of I(400)/I(111) thereof is not less than 33% and an intensity ratio of I(440)/I(111) thereof is not less than 16%.
    Type: Application
    Filed: March 7, 2013
    Publication date: July 18, 2013
    Applicant: TODA KOGYO CORPORATION
    Inventor: TODA KOGYO CORPORATION
  • Patent number: 8486368
    Abstract: A process for producing the porous catalyst body for decomposing hydrocarbons, the body containing at least magnesium, aluminum and nickel, and has a pore volume of 0.01 to 0.5 cm3/g, an average pore diameter of not more than 300 ? and an average crushing strength of not less than 3 kgf. The process includes molding hydrotalcite containing at least magnesium, aluminum and nickel, and calcining the resulting molded product at a temperature of 700 to 1500° C.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: July 16, 2013
    Assignee: Toda Kogyo Corporation
    Inventors: Shinji Takahashi, Naoya Kobayashi
  • Patent number: 8479999
    Abstract: A composite magnetic antenna for information communication utilizes a magnetic field component as well as a composite RF tag using the composite magnetic antenna, which can be embedded in metals while maintaining a sufficient communication sensitivity unlike conventional RF tags which are unusable in the metal embedding applications. The composite RF tag for transmitting and receiving information using an electromagnetic induction method includes a magnetic antenna on which an IC is mounted, and an insulating material and a metal material or a conductive material which are formed around the magnetic antenna. The magnetic antenna includes a central core formed of a magnetic material, and an electrode material formed into a coil around the central core. The insulating material is formed around the magnetic antenna except for one longitudinal end of the coil of the magnetic antenna. The metal material or the conductive material is formed on an outside of the insulating material.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: July 9, 2013
    Assignee: Toda Kogyo Corporation
    Inventors: Jun Koujima, Tetsuya Kimura, Takanori Doi, Yoshiro Sato
  • Patent number: 8470194
    Abstract: A Ni—Zn—Cu ferrite material having excellent DC bias characteristics is provided by adding zinc silicate thereto. The above problem can be solved by Ni—Zn—Cu ferrite particles which comprise a spinel-type ferrite and zinc silicate, which have a composition comprising 36.0 to 48.5 mol % of Fe2O3, 7.0 to 38 mol % of NiO, 4.5 to 40 mol % of ZnO, 5.0 to 17 mol % of CuO and 1.0 to 8.0 mol % of SiO2, all amounts being calculated in terms of the respective oxides, and which have a ratio of an X-ray diffraction intensity from a 113 plane of the zinc silicate to an X-ray diffraction intensity from a 311 plane of the spinel-type ferrite is 0.01 to 0.12; a green sheet obtained by forming a material comprising the Ni—Zn—Cu ferrite particles into a film; and a Ni—Zn—Cu ferrite sintered ceramics.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: June 25, 2013
    Assignee: Toda Kogyo Corporation
    Inventors: Yoji Okano, Tomohiro Dote, Norio Sugita
  • Patent number: 8460456
    Abstract: The present invention relates to an infrared reflecting black pigment which comprises a composite oxide containing Fe, Co and at least one metal selected from the group consisting of Al, Mg, Ca, Sr, Ba, Ti, Zn, Sn, Zr, Si and Cu; has an average plate surface diameter of 0.02 to 5.0 ?m, a blackness (L* value) of not more than 30, an average reflectance of not more than 10% in a visible light wavelength range of 250 to 780 nm and an average reflectance of not less than 35% in an infrared wavelength range of 780 to 2500 nm. There is provided an infrared reflecting black pigment which is capable of producing a heat-shielding paint containing no harmful elements and exhibiting an excellent infrared reflecting property.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: June 11, 2013
    Assignee: Toda Kogyo Corporation
    Inventor: Kazutoshi Sanada