Patents Assigned to Toda Kogyo Corporation
  • Publication number: 20130119307
    Abstract: The present invention aims to provide lithium composite compound particles which can exhibit good cycle characteristics and an excellent high-temperature storage property when used as a positive electrode active substance of a secondary battery, and a secondary battery using the lithium composite compound particles. The present invention relates to lithium composite compound particles having a composition represented by the compositional formula: Li1+xNi1?y?z?aCoyMnzMaO2, in which the lithium composite compound particles have an ionic strength ratio A (LiO?/NiO2?) of not more than 0.5 and an ionic strength ratio B (Li3CO3+/Ni+) of not more than 20 as measured on a surface of the respective lithium composite compound particles using a time-of-flight secondary ion mass spectrometer.
    Type: Application
    Filed: June 8, 2011
    Publication date: May 16, 2013
    Applicant: TODA KOGYO CORPORATION
    Inventors: Hiroyasu Watanabe, Kazutoshi Ishizaki, Taiki Imahashi, Satoshi Nakamura, Osamu Sasaki
  • Patent number: 8440113
    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: Grant
    Filed: March 27, 2008
    Date of Patent: May 14, 2013
    Assignee: Toda Kogyo Corporation
    Inventors: Masayuki Uegami, Akihisa Kajiyama, Kazutoshi Ishizaki, Hideaki Sadamura
  • Publication number: 20130045159
    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: October 2, 2012
    Publication date: February 21, 2013
    Applicant: TODA KOGYO CORPORATION
    Inventor: TODA KOGYO CORPORATION
  • Patent number: 8323612
    Abstract: The present invention relates to lithium manganate particles having a primary particle diameter of 1 to 8 ?m and forming substantially single-phase particles, which have a composition represented by the following chemical formula: Li1+xMn2-x-yY1yO4+Y2 in which Y1 is at least one element selected from the group consisting of Ni, Co, Mg, Fe, Al, Cr and Ti; Y2 is P and is present in an amount of 0.01 to 0.6 mol % based on Mn; and x and y satisfy 0.03?x?0.15 and 0.05?y?0.20, respectively, and which lithium manganate particles have a specific surface area of the lithium manganate particles of 0.3 to 0.9 m2/g (as measured by BET method); and have an average particle diameter (D50) of the lithium manganate particles of 3 to 10 ?m. A positive electrode active substance of a lithium ion secondary battery using the lithium manganate particles of the present invention has a high output and is excellent in high-temperature stability.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: December 4, 2012
    Assignee: Toda Kogyo Corporation
    Inventors: Kazumichi Koga, Masayuki Uegami, Kazutoshi Ishizaki, Hideaki Sadamura
  • Patent number: 8303861
    Abstract: Colored composite microparticles comprising silica and an organic pigment in which the silica is enclosed in the organic pigment and contained in an amount of 0.001 to 9% by weight (calculated as Si) based on the weight of the composite particles. These microparticles have a high tinting strength and are excellent in dispersibility and light fastness.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: November 6, 2012
    Assignee: Toda Kogyo Corporation
    Inventors: Shinji Horie, Hiroko Morii, Hirofumi Nishikawa, Kazuyuki Hayashi
  • Patent number: 8304367
    Abstract: The present invention aims at providing a catalyst as a porous catalyst body for decomposing hydrocarbons which comprises at least magnesium, aluminum and nickel, wherein the catalyst has an excellent catalytic activity for decomposition and removal of hydrocarbons, an excellent anti-sulfur poisoning property, an excellent anti-coking property even under a low-steam condition, a sufficient strength capable of withstanding crushing and breakage even when coking occurs within the catalyst, and an excellent durability.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: November 6, 2012
    Assignee: Toda Kogyo Corporation
    Inventors: Shinji Takahashi, Naoya Kobayashi
  • Publication number: 20120237728
    Abstract: The present invention relates to a molded ferrite sheet having opposing surfaces and a thickness in a range of 30 ?m to 430 ?m, at least one surface of said opposing surfaces having the following surface roughness characteristics (a) to (c): (a) a center line average roughness is in a range of 170 nm to 800 nm, (b) a maximum height is in a range of 3 ?m to 10 ?m, and (c) an area occupancy rate of cross-sectional area taken along a horizontal plane at a depth of 50% of the maximum height in a square of side 100 ?m is in a range of 10 to 80%.
    Type: Application
    Filed: May 29, 2012
    Publication date: September 20, 2012
    Applicant: TODA KOGYO CORPORATION
    Inventors: Tetsuya KIMURA, Tomohiro Dote, Kazumi Yamamoto, Takanori Doi, Yoji Okano
  • Patent number: 8268289
    Abstract: The present invention relates to a catalyst for decomposing hydrocarbons including hydrocarbons having 2 or more carbon atoms, comprising magnesium, aluminum, nickel and cobalt as constitutional elements, and further comprising ruthenium and/or palladium, wherein the metallic ruthenium and/or metallic palladium in the form of fine particles have an average particle diameter of 0.5 to 20 nm, and a content of the metallic ruthenium and/or metallic palladium is 0.05 to 5.0% by weight based on the weight of the catalyst. The catalyst of the present invention is capable of efficiently decomposing hydrocarbons including hydrocarbons having 2 or more carbon atoms (C2 or more hydrocarbons), is less expensive, and exhibits an excellent catalytic activity for decomposition and removal of hydrocarbons, in particular, an excellent capability of decomposing propane, and an excellent anti-coking property.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: September 18, 2012
    Assignee: Toda Kogyo Corporation
    Inventors: Shinji Takahashi, Naoya Kobayashi
  • Publication number: 20120228539
    Abstract: The present invention relates to a heat retaining agent for agricultural films comprising hydrotalcite-type particles which can satisfy all of a transparency required for heat retaining agents for agricultural films, dispersibility in resins, and handling property at a high level. According to the present invention, there are provided hydrotalcite-type particles having an oil absorption of not more than 35 mL/100 g and a ratio of an oil absorption to a plate surface diameter (oil absorption/plate surface diameter) of 140 to 190; a heat retaining agent for agricultural films comprising the hydrotalcite-type particles; and an agricultural film comprising the heat retaining agent for agricultural films.
    Type: Application
    Filed: August 26, 2010
    Publication date: September 13, 2012
    Applicant: TODA KOGYO CORPORATION
    Inventors: Kanae Honmyo, Torayuki Honmyo
  • Patent number: 8247475
    Abstract: According to the present invention, there are provided hydrotalcite-based compound particles surface-treated with an organic compound having not less than 3 carbon atoms, have a specific surface area of 5 to 150 m2/g, wherein a conceptual value x corresponding to micropores and ultramicropores, and a conceptual value y corresponding to volumes of macropores and micropores, both calculated from a water vapor adsorption curve thereof when exposed to a temperature of 25° C. and a humidity of 50% for 250 hours, are respectively within specific ranges. The hydrotalcite-based compound particles of the present invention are capable of capturing even a very small amount of halogens contained in various resins, and exhibiting an excellent effect of preventing deterioration of the resins.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: August 21, 2012
    Assignee: Toda Kogyo Corporation
    Inventors: Naoya Kobayashi, Torayuki Honmyo
  • Patent number: 8159405
    Abstract: A magnetic antenna, suitable for use in an RFID tag and an RFID tag reader/writer, which operates stable even if brought close to a metallic object and suitable for mass-production, and a board mounted with the magnetic antenna. The magnetic antenna has a coil with a magnetic layer and a conductive layer provided on the magnetic layer via an insulating layer or has a plurality of coils each with a magnetic layer having a square or rectangular shape and arranged radially.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: April 17, 2012
    Assignee: Toda Kogyo Corporation
    Inventors: Tetsuya Kimura, Tomohiro Dote, Yoshiro Sato
  • Publication number: 20120070573
    Abstract: Preparing Mg—Zn—Al-based hydrotalcite-type particles which comprise core particles composed of Mg—Al-based hydrotalcite and an Mg—Zn—Al-based hydrotalcite layer formed on the surface of the core particle, and have an average plate surface diameter of 0.1 to 1.0 .mu.m and a refractive index adjustable to a required value in the range of 1.48 to 1.56.
    Type: Application
    Filed: November 28, 2011
    Publication date: March 22, 2012
    Applicant: TODA KOGYO CORPORATION
    Inventors: Naoya KOBAYASHI, Torayuki HONMYO
  • Publication number: 20120062436
    Abstract: A magnetic antenna, suitable for use in an RFID tag and an RFID tag reader/writer, which operates stable even if brought close to a metallic object and suitable for mass-production, and a board mounted with the magnetic antenna. The magnetic antenna has a coil with a magnetic layer and a conductive layer provided on the magnetic layer via an insulating layer or has a plurality of coils each with a magnetic layer having a square or rectangular shape and arranged radially.
    Type: Application
    Filed: October 31, 2011
    Publication date: March 15, 2012
    Applicant: TODA KOGYO CORPORATION
    Inventors: Tetsuya KIMURA, Tomohiro Dote, Yoshiro Sato
  • Patent number: 8133405
    Abstract: Spinel-type ferrimagnetic particles having a composition represented by the formula: (MO)·n/2(Fe2O3) where M is a divalent metal and n is a molar ratio of Fe to M (n=Fe/M) which is from more than 2.05 to less than 2.5 (2.05<n<2.5). They contain a superparamagnetic component in an amount of not more than 2% by mass, has an average particle diameter of 5 to 30 nm. The particles are respectively coated on surface with a hydroxide of at least one metal Si, Al, P and Zn in an amount of not more than 10% by mass, calculated as the metal. The spinel-type ferrimagnetic particles can exhibit a high coercive force irrespective of fine particles, and are excellent in dispersibility and chemical stability, as well as the magnetic recording medium for high-density recording can exhibit not only excellent frequency characteristics and high output characteristics, but also an excellent weather resistance and a high reliability.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: March 13, 2012
    Assignee: Toda Kogyo Corporation
    Inventors: Hiroshi Yamamoto, Tsutomu Katamoto
  • Publication number: 20120042750
    Abstract: The present invention relates to a process for producing magnetic metal particles for magnetic recording, comprising: heat-treating goethite particles having an aluminum content of 4 to 50 atom % in terms of Al based on whole Fe to obtain hematite particles; and heat-reducing the hematite particles at a temperature of 200 to 600° C., the goethite particles being obtained by adding a peroxodisulfate to a reaction solution comprising: a ferrous salt aqueous solution and a mixed alkali aqueous solution comprising: an alkali hydrogen carbonate aqueous solution or alkali carbonate aqueous solution and an alkali hydroxide aqueous solution before initiation of an oxidation reaction of the reaction solution, and then conducting the oxidation reaction.
    Type: Application
    Filed: October 31, 2011
    Publication date: February 23, 2012
    Applicant: TODA KOGYO CORPORATION
    Inventors: Mineko OHSUGI, Toshiharu HARADA, Takahiro MATSUO, Yosuke YAMAMOTO, Kazuyuki HAYASHI
  • Patent number: 8072387
    Abstract: There is provided a magnetic antenna, suitable for use in an RFID tag and an RFID tag reader/writer, which operates stable even if brought close to a metallic object and suitable for mass-production, and a board mounted with the magnetic antenna. The magnetic antenna has a coil comprising a magnetic layer and a conductive layer provided on the magnetic layer via an insulating layer. Alternatively, the magnetic antenna has a plurality of coils each comprising a magnetic layer having a square or rectangular shape and arranged radially. One ends of the coils are connected in series or parallel to one another by the magnetic layers thereof such that the coils have the same polarity. An insulating layer is provided on one or both outer surface of the coils, and a conductive layer is provided on an outer surface of at least one of the insulating layers. The magnetic antenna is produced using an LTCC technology.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: December 6, 2011
    Assignee: Toda Kogyo Corporation
    Inventors: Tetsuya Kimura, Tomohiro Dote, Yoshiro Sato
  • Patent number: 8066913
    Abstract: The present invention relates to Li—Ni composite oxide particles for a non-aqueous electrolyte secondary cell which have a large charge/discharge capacity, an excellent packing density and excellent storage performance. The Li—Ni composite oxide particles for a non-aqueous electrolyte secondary cell which have a composition represented by the formula: LixNi1-y-zCoyAlz02 in which 0.9<x<1.3; 0.1<y<0.3; and 0<z<0.3, wherein the composite oxide particles have a rate of change in specific surface area of not more than 10% as measured between before and after applying a pressure of 1 t/cm2 thereto, and a sulfate ion content of not more than 1.0%, can be produced by mixing Ni—Co hydroxide particles having a sulfate ion content of not more than 1.0% whose surface is coated with an Al compound having a primary particle diameter of not more than 1 ?m, with a lithium compound; and calcining the resulting mixture.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: November 29, 2011
    Assignee: Toda Kogyo Corporation
    Inventors: Kazuhiko Kikuya, Osamu Sasaki, Teruaki Santoki, Hiroshi Yamamoto
  • Publication number: 20110281168
    Abstract: The present invention relates to lithium composite compound particles having a composition represented by the formula: Li1+xNi1-y-zCoyMzO2 (M=B or Al), wherein the lithium composite compound particles have an ionic strength ratio A (LiO?/NiO2?) of not more than 0.3 and an ionic strength ratio B (Li3CO3+/Ni+) of not more than 20 as measured on a surface of the respective lithium composite compound particles using a time-of-flight secondary ion mass spectrometer. The lithium composite compound particles of the present invention can be used as a positive electrode active substance of a secondary battery which has good cycle characteristics and an excellent high-temperature storage property.
    Type: Application
    Filed: December 3, 2009
    Publication date: November 17, 2011
    Applicant: TODA KOGYO CORPORATION
    Inventors: Hiroyasu Watanabe, Taiki Imahashi, Kazuhiko Kikuya, Nobuyuki Tagami, Hideaki Sadamura
  • Publication number: 20110247524
    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: Application
    Filed: May 20, 2011
    Publication date: October 13, 2011
    Applicant: TODA KOGYO CORPORATION
    Inventor: Kazutoshi Sanada
  • Publication number: 20110203835
    Abstract: There are provided a soft magnetic material in the form of particles for suppressing occurrence of electromagnetic interference which is capable of exhibiting the suppressing effect in a broad frequency range from a low frequency band to a high frequency band, as well as an electromagnetic interference suppressing sheet using the material. When a conductive magnetic filler prepared by mixing a conductive carbon with soft magnetic particles at a volume ratio of 3 to 10:50 to 70 is highly filled in a sheet material, there can be obtained an electromagnetic interference suppressing sheet which is suitable for high-density mounting to electronic equipments, has an excellent electromagnetic absorption in a near electromagnetic field, and is fully suppressed from undergoing electromagnetic reflection thereon.
    Type: Application
    Filed: April 27, 2011
    Publication date: August 25, 2011
    Applicant: Toda Kogyo Corporation
    Inventors: Kazumi Yamamoto, Tetsuya Kimura