Patents Assigned to Ube Material Industries, Ltd.
  • Patent number: 9011718
    Abstract: The emission strength of a light released from a blue light-emitting phosphor having a merwinite crystal structure and an elemental formula of (Sr,Ca)3MgSi2O8 activated with Eu in which a molar ratio of Sr and Ca is in the range of 1:0.10 to 1:0.30 is stable in a wide temperature range.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: April 21, 2015
    Assignee: Ube Material Industries, Ltd.
    Inventors: Kouichi Fukuda, Jin Amagai, Seiji Noguchi, Toru Inagaki, Masaki Tanaka
  • Patent number: 8956554
    Abstract: A green light-emitting silicate phosphor comprising Eu-activated strontium barium silicate which has a crystal phase of magnesium oxide or a merwinite crystal phase and contains 0.15 to 0.90 mol of magnesium per one mol of silicon gives a light emission stable at elevated temperatures.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: February 17, 2015
    Assignee: Ube Materials Industries, Ltd.
    Inventors: Kouichi Fukuda, Jin Amagai, Toru Inagaki
  • Publication number: 20140356461
    Abstract: To provide a plant disease controlling agent and the method for controlling plant diseases using the same, the plant disease controlling agent being commonly applicable to various crop and soil conditions, and ensures safety over a long period throughout the environment. Provided is a plant disease controlling agent including magnesium oxide obtained by baking magnesium hydroxide at 400 to 1000° C. Further, provided is a method for controlling plant diseases using the plant disease controlling agent. The method is preferably any of mixing the plant disease controlling agent with the surface soil, mixing the plant disease controlling agent with the nursery soil, treating foliage with an aqueous suspension of the plant disease controlling agent, immersing plant roots in the plant disease controlling agent, and irrigating plant feet with the plant disease controlling agent.
    Type: Application
    Filed: December 17, 2012
    Publication date: December 4, 2014
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Shoji Sakai, Shinichi Ito
  • Patent number: 8883309
    Abstract: A blue light-emitting silicate phosphor favorably employable as a blue light-emitting source of a light-emitting apparatus which gives emission of a visible light upon irradiation of ultraviolet rays having a wavelength of 254 nm, such as ultraviolet rays emitted by a fluorescent lamp is produced by a method comprising calcining a powdery mixture comprising a magnesium oxide powder, an MeO source powder, a EuO source powder and a SiO2 source powder, said magnesium oxide powder having a purity of 99.9 wt. % or higher and a BET specific surface area in the range of 3 to 60 m2/g and having been prepared by bringing a metallic magnesium vapor into contact with oxygen whereby oxidizing the metallic magnesium vapor.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: November 11, 2014
    Assignee: Ube Material Industries, Ltd.
    Inventors: Toru Inagaki, Masato Yamauchi, Seiji Noguchi, Kouichi Fukuda, Akira Ueki
  • Patent number: 8785535
    Abstract: A fibrous basic magnesium sulfate powder which does not contain CO2 in an amount of more than 0.15% by mass, or a fibrous basic magnesium sulfate powder which has a ratio of the infrared absorption within the wave number range of 1,400-1,440 cm?1 relative to the infrared absorption within the wave number range of 3,180-3,530 cm?1 of 0.005 or less. The fibrous basic magnesium sulfate powders exhibit improved physical property-improving effect when dispersed in a resin material.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: July 22, 2014
    Assignee: Ube Material Industries, Ltd.
    Inventors: Ryoichi Nomura, Tatsuki Okutsu
  • Publication number: 20140166927
    Abstract: A moisture absorbent for an organic EL element having hydrophobicity and no reduction in moisture absorption speed, and a method for producing the moisture absorbent are provided. The moisture absorbent for an organic EL element includes, as a main component, calcium oxide particles each having an alkoxide layer on the surface thereof. Furthermore, the method for producing a moisture absorbent for an organic EL element includes dry-pulverizing calcium oxide in the presence of an alcohol, and thereafter dry-treating the pulverized calcium oxide.
    Type: Application
    Filed: July 6, 2012
    Publication date: June 19, 2014
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Takayuki Watanabe, Akihiro Moto, Takuya Mishima, Satoru Sano, Akira Ueki
  • Publication number: 20140151732
    Abstract: A blue light-emitting Eu-activated silicate phosphor having a constitutional formula of Sr3MgSi2O8 which contains Eu in an amount of 0.001 to 0.2 mol per one mole of Mg and further a rare earth metal element selected from the group consisting of Sc, Y, Gd, Tb and La in an amount of 0.0001 to 0.03 mol, per one mole of Mg, gives an emission with enhanced emission strength when it is excited with a light having a wavelength in the region of 350 to 430 nm.
    Type: Application
    Filed: February 24, 2012
    Publication date: June 5, 2014
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Kouichi Fukuda, Jin Amagai, Seiji Noguchi, Toru Inagaki, Masaki Tanaka
  • Publication number: 20140144775
    Abstract: Disclosed is an MgO target for sputtering, which can accelerate a film formation rate even when MgO is used as a target for sputtering in the formation of an MgO film. The MgO target for sputtering, which includes MgO and an electroconductive material as main components, and in which the electroconductive material is capable of imparting orientation to a MgO film when the MgO film containing the electroconductive material is formed by a DC sputtering.
    Type: Application
    Filed: June 29, 2012
    Publication date: May 29, 2014
    Applicants: NIPPON TUNGSTEN CO., LTD., UBE MATERIALS INDUSTRIES, LTD.
    Inventors: Satoru Sano, Yoshihiro Nishimura, Takayuki Watanabe, Yuuzou Katou, Akira Ueki, Shinzo Mitomi, Masanobu Takasu, Yusuke Hara, Takaaki Tanaka
  • Patent number: 8704439
    Abstract: A blue light-emitting phosphor having an elemental formula of Sr3-xMgSi2O8:Eux (wherein x represents a value in the range of 0.008 to 0.110), a merwinite crystal structure and a crystal lattice strain of 0.080% or less as determined from an X-ray diffraction pattern at diffraction angle 2? of 20-130° by the Le Bail method, wherein the X-ray diffraction pattern is determined using a CuK? ray having an incident angle of ?, is used advantageously as a blue light-emitting material for a light-emitting device which comprises a semiconductor light-emitting element capable of emitting a light having a wavelength of 350-430 nm upon application of an electrical current, such as a white light-emitting LED lamp, and a blue light-emitting material capable of emitting a blue light upon excitation with a light emitted by the semiconductor light-emitting element.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: April 22, 2014
    Assignee: Ube Material Industries, Ltd.
    Inventors: Toru Inagaki, Masato Yamauchi, Seiji Noguchi, Kouichi Fukuda, Akira Ueki
  • Publication number: 20140093735
    Abstract: An acicular strontium carbonate fine powder having a mean length of 150 nm or less and a mean aspect ratio of 1.5 or more and containing acicular strontium carbonate particles having a length of 200 nm or more in an amount of 5% or less in terms of number of acicular particles is improved in its dispersibility in hydrophobic organic solvent by treating the acicular strontium carbonate fine powder with a combination of polycarboxylic acid having a side chain of a polyoxyalkylene group or its anhydride and amine having a polyoxyalkylene group and a hydrocarbyl group.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 3, 2014
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Fumio OKADA, Takeshi HIMOTO
  • Publication number: 20140084780
    Abstract: The emission strength of a light released from a blue light-emitting phosphor having a merwinite crystal structure and an elemental formula of (Sr,Ca)3MgSi2O8 activated with Eu in which a molar ratio of Sr and Ca is in the range of 1:0.10 to 1:0.30 is stable in a wide temperature range.
    Type: Application
    Filed: September 25, 2012
    Publication date: March 27, 2014
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Kouichi FUKUDA, Jin AMAGAI, Seiji NOGUCHI, Toru INAGAKI, Masaki TANAKA
  • Publication number: 20140065052
    Abstract: Acicular strontium carbonate particles are manufactured by introducing gaseous carbon dioxide into an aqueous solution or suspension of strontium hydroxide having a concentration of 1 to 20 wt. %, at a flow rate of 0.5 to 200 mL/min., relative to one gram of the strontium hydroxide, while stirring the solution or suspension in the presence of a dicarboxylic acid, in which the dicarboxylic acid comprises a divalent linear hydrocarbon group having one to four carbon atoms and carboxyl group bonded to each terminals, with the proviso that the linear hydrocarbon group may be substituted with one or more C1-6 alkyl groups, and thus carbonating the strontium hydroxide.
    Type: Application
    Filed: February 15, 2012
    Publication date: March 6, 2014
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Fumio Okada, Takeshi Himoto, Masayuki Fujimoto
  • Publication number: 20140053757
    Abstract: Dispersibility of an alkaline earth metal carbonate micropowder in a polymer resin or in an organic solvent is improved by treating the surface of the alkaline earth metal micropowder with a surfactant having hydrophilic groups and hydrophobic groups and groups that form anions in water.
    Type: Application
    Filed: February 15, 2012
    Publication date: February 27, 2014
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Fumio Okada, Takeshi Himoto, Masayuki Fujimoto
  • Publication number: 20140054634
    Abstract: A silicate phosphor having a coating layer comprising a fluorine-containing compound on its surface which is obtained by a method of heating a mixture of 100 weight parts of a silicate phosphor and 0.5-15 weight parts of ammonium fluoride at a temperature in the range of 200 to 600° C. exhibits high light emission intensity and high moisture resistance.
    Type: Application
    Filed: November 22, 2011
    Publication date: February 27, 2014
    Applicant: UBE MATERIAL INDUSTRIES ,LTD.
    Inventors: Kouichi Fukuda, Jin Amagai, Seiji Noguchi, Toru Inagaki, Masaki Tanaka
  • Publication number: 20140045982
    Abstract: A fibrous basic magnesium sulfate powder which does not contain CO2 in an amount of more than 0.15% by mass, or a fibrous basic magnesium sulfate powder which has a ratio of the infrared absorption within the wave number range of 1,400-1,440 cm?1 relative to the infrared absorption within the wave number range of 3,180-3,530 cm?1 of 0.005 or less. The fibrous basic magnesium sulfate powders exhibit improved physical property-improving effect when dispersed in a resin material.
    Type: Application
    Filed: March 2, 2012
    Publication date: February 13, 2014
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Ryoichi Nomura, Tatsuki Okutsu
  • Publication number: 20130244033
    Abstract: A blue light-emitting silicate phosphor favorably employable as a blue light-emitting source of a light-emitting apparatus which gives emission of a visible light upon irradiation of ultraviolet rays having a wave-length of 254 nm, such as ultraviolet rays emitted by a fluorescent lamp is produced by a method comprising calcining a powdery mixture comprising a magnesium oxide powder, an MeO source powder, a EuO source powder and a SiO2 source powder, said magnesium oxide powder having a purity of 99.9 wt. % or higher and a BET specific surface area in the range of 3 to 60 m2/g and having been prepared by bringing a metallic magnesium vapor into contact with oxygen whereby oxidizing the metallic magnesium vapor.
    Type: Application
    Filed: April 14, 2011
    Publication date: September 19, 2013
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Toru Inagaki, Masato Yamauchi, Seiji Noguchi, Kouichi Fukuda, Akira Ueki
  • Publication number: 20130200777
    Abstract: A blue light-emitting phosphor having an elemental formula of Sr3-xMgSi2O8:Eux (wherein x represents a value in the range of 0.008 to 0.110), a merwinite crystal structure and a crystal lattice strain of 0.080% or less as determined from an X-ray diffraction pattern at diffraction angle 2? of 20-130° by the Le Bail method, wherein the X-ray diffraction pattern is determined using a CuK? ray having an incident angle of ?, is used advantageously as a blue light-emitting material for a light-emitting device which comprises a semiconductor light-emitting element capable of emitting a light having a wavelength of 350-430 nm upon application of an electrical current, such as a white light-emitting LED lamp, and a blue light-emitting material capable of emitting a blue light upon excitation with a light emitted by the semiconductor light-emitting element.
    Type: Application
    Filed: September 7, 2011
    Publication date: August 8, 2013
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Toru Inagaki, Masato Yamauchi, Seiji Noguchi, Kouchi Fukuda, Akira Ueki
  • Publication number: 20130168604
    Abstract: A green light-emitting silicate phosphor comprising Eu-activated strontium barium silicate which has a crystal phase of magnesium oxide or a merwinite crystal phase and contains 0.15 to 0.90 mol of magnesium per one mol of silicon gives a light emission stable at elevated temperatures.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 4, 2013
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventor: UBE MATERIAL INDUSTRIES, LTD.
  • Publication number: 20130149534
    Abstract: Provided is an apparatus for producing magnesium-containing zinc oxide, including: zinc vapor producing means 11 which produces zinc vapor by heating metallic zinc; magnesium vapor producing means 15 which produces magnesium vapor by heating metallic magnesium; mixed vapor producing means 20 which produces mixed vapor by mixing the zinc vapor and the magnesium vapor; and oxidizing gas contact means 19 which produces magnesium-containing zinc oxide by bringing an oxidizing gas into contact with the mixed vapor. The content of zinc in the mixed vapor is adjusted to be higher than that of magnesium.
    Type: Application
    Filed: February 4, 2013
    Publication date: June 13, 2013
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventor: UBE MATERIAL INDUSTRIES, LTD.
  • Patent number: 8454933
    Abstract: The invention provides a polycrystal magnesium oxide (MgO) sintered body which is capable of having a sintered density close to a theoretical density thereof. The MgO sintered body exhibits excellent mechanical properties and heat conductivity, while reducing contamination of an atmosphere due to gas generation. The invention also provides a production method for the sintered body. The polycrystal MgO sintered body has a unique crystalline anisotropy in which (111) faces are oriented along a surface applied with a uniaxial pressure at a high rate. The polycrystalline MgO sintered body is obtained by a method which includes the steps of: sintering an MgO raw material powder, having a particle size of 1 ?m or less, under a uniaxial pressure and then subjecting the sintered powder to a heat treatment under an atmosphere containing 0.05 volume % or more of oxygen, at a temperature of 1273 K or more for 1 minute or more.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: June 4, 2013
    Assignees: Nippon Tungsten Co., Ltd., Ube Material Industries, Ltd.
    Inventors: Mitsuyoshi Nagano, Masanobu Takasu, Yo Arita, Satoru Sano