Patents by Inventor Kouichi Fukuda

Kouichi Fukuda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10538702
    Abstract: The present invention is a fluorescent material characterized by being represented by a composition of the following formula (1) and having a crystal lattice distortion obtained from a Williamson-Hall plot by X-ray diffraction within the range of 0.0005 to 0.0020. (Sr,Ca,M)3-xMgSi2O8:Eux??formula (1) wherein M is at least one rare earth metal elements selected from the group consisting of Sc, Y, Gd, Tb and La, and 0.01?x?0.10. Also, the present invention is a light-emitting device including the fluorescent material, and a light source that emits light by irradiating the fluorescent material with excitation light. Furthermore, the present invention is a method for producing the fluorescent material, including the steps of: obtaining an aqueous slurry of a raw material; and spray-drying the aqueous slurry with hot air at 80 to 300° C.
    Type: Grant
    Filed: December 25, 2015
    Date of Patent: January 21, 2020
    Assignee: Ube Industries, Ltd.
    Inventors: Kouichi Fukuda, Kaoru Takazaki, Jin Amagai, Toru Inagaki, Masaki Tanaka, Tatsunori Sakaguchi
  • Patent number: 10411315
    Abstract: A battery pack structure includes a chamber, a cooling duct arranged outside the pack case, and a connector that communicates the chamber and the cooling duct with each other. The connector includes a first opening, which is connected with the chamber in a state of being sealed by a first sealing member, a second opening, which is connected with a cooling duct in a state of being sealed by a second sealing member, a first sealing surface, which is formed in a peripheral part of the first opening and is either a tube-shaped surface or a plane that faces a chamber inlet surface though the first sealing member, and a second sealing surface, which is formed in a peripheral part of the second opening and is a tube-shaped surface or a plane that faces a duct outlet surface through the second sealing member.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: September 10, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akihiro Kosaki, Kouichi Tanaka, Takenori Kobayashi, Shigeru Fukuda, Toshiaki Naruke, Akira Azumi
  • Publication number: 20190067530
    Abstract: A blue light-emitting Eu-activated silicate phosphor having a constitutional formula of Sr3MgSi2O3 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: October 29, 2018
    Publication date: February 28, 2019
    Inventors: Kouichi FUKUDA, Jin AMAGAI, Seiji NOGUCHI, Toru INAGAKI, Masaki TANAKA
  • Publication number: 20170349823
    Abstract: The present invention is a fluorescent material characterized by being represented by a composition of the following formula (1) and having a crystal lattice distortion obtained from a Williamson-Hall plot by X-ray diffraction within the range of 0.0005 to 0.0020. (Sr,Ca,M)3-xMgSi2O8:Eux formula (1) wherein M is at least one rare earth metal elements selected from the group consisting of Sc, Y, Gd, Tb and La, and 0.01?x?0.10. Also, the present invention is a light-emitting device including the fluorescent material, and a light source that emits light by irradiating the fluorescent material with excitation light. Furthermore, the present invention is a method for producing the fluorescent material, including the steps of: obtaining an aqueous slurry of a raw material; and spray-drying the aqueous slurry with hot air at 80 to 300° C.
    Type: Application
    Filed: December 25, 2015
    Publication date: December 7, 2017
    Applicant: Ube Industries, Ltd.
    Inventors: Kouichi Fukuda, Kaoru Takazaki, Jin Amagai, Toru Inagaki, Masaki Tanaka, Tatsunori Sakaguchi
  • Publication number: 20170321120
    Abstract: Provided is a phosphor represented by a composition of the following formula (1), (Sra,Bab,Cac,Eux,M1d,M2e)SiOf.gMgO??formula (1) (here, M1 represents at least one group 3 element selected from Lu and Sc, M2 represents an alkali metal element selected from Li, Na, and K, and 0<a?2, 0<b?2, 0?c?2, 0.0015?d?0.045, 0?e?0.06, 0<x?0.1, 3.7?f?4.1, and 0?g?1 are satisfied). In addition, provided is a light-emitting device including the phosphor and a light source for irradiating the phosphor with excitation light to cause the phosphor to emit light.
    Type: Application
    Filed: November 4, 2015
    Publication date: November 9, 2017
    Applicant: Ube Industries, Ltd.
    Inventors: Jin Amagai, Kouichi Fukuda, Tatsunori Sakaguchi
  • Publication number: 20170267178
    Abstract: An image capture device is mounted in a vehicle. The image capture device includes: an image capture unit; and a setting unit that sets an image capture condition for each region of the image capture unit each having a plurality of pixels, or for each pixel, based upon at least one of a state exterior to the vehicle and a state of the vehicle.
    Type: Application
    Filed: May 29, 2015
    Publication date: September 21, 2017
    Applicant: NIKON CORPORATION
    Inventors: Akiko SHIGA, Toru MIYAKOSHI, Satoshi YAMAGUCHI, Akira KINOSHITA, Kaoru YOSHINO, Hitomi NAGANUMA, Takashi KURIYAMA, Kouichi FUKUDA, Yuki KITA, Koji NAGAOKA, Tomoya NAKAGAWA, Masakazu SEKIGUCHI, Takashi SHIONOYA
  • Patent number: 9758725
    Abstract: There is provided a fluorescent material having a composition represented by the following Formula (1). (Sra,Bab,Eux,M11,M2e)SiOf·cMgO . . . Formula (1) (In the formula, M1 is at least one tertiary group element selected from Y and Tb; M2 is an alkali metal selected from Li, Na, and K; and 0<a<2, 0<b<2, 0?c<1, 0.001?d?0.06, 0?e?0.06, 0<x<0.1, and 3.7?f?4.1 are set.) Further, there is provided a light-emitting device including: the fluorescent material; and a light source irradiating the fluorescent material with excitation light to cause the fluorescent material to emit light.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: September 12, 2017
    Assignee: Ube Industries, Ltd.
    Inventors: Jin Amagai, Kouichi Fukuda
  • Patent number: 9605200
    Abstract: The deep red light-emitting magnesium fluorogermanate phosphor prepared by calcining a mixture comprising a fine magnesium oxide powder having a BET specific surface area in the range of 5-200 m2/g, a fluorine compound, a germanium compound and a manganese compound gives a light emission having a maximum peak of increased strength in the wavelength region of 640-680 nm upon excitation with a light having a wavelength of 400 nm.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: March 28, 2017
    Assignees: UBE MATERIAL INDUSTRIES, LTD., UBE INDUSTRIES, LTD.
    Inventors: Kouichi Fukuda, Rika Nogita, Jin Amagai, Toru Inagaki
  • Publication number: 20160333266
    Abstract: There is provided a fluorescent material having a composition represented by the following Formula (1). (Sra, Bab, Eux, M11, M2e) SiOf.cMgO . . . Formula (1) (In the formula, M1 is at least one tertiary group element selected from Y and Tb; M2 is an alkali metal selected from Li, Na, and K; and 0<a<2, 0<b<2, 0?c<1, 0.001?d?0.06, 0?e?0.06, 0<x<0.1, and 3.7?f?4.1 are set.) Further, there is provided a light-emitting device including: the fluorescent material; and a light source irradiating the fluorescent material with excitation light to cause the fluorescent material to emit light.
    Type: Application
    Filed: January 21, 2015
    Publication date: November 17, 2016
    Applicant: Ube Industries, Ltd.
    Inventors: Jin Amagai, Kouichi Fukuda
  • Publication number: 20160211424
    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: March 29, 2016
    Publication date: July 21, 2016
    Inventors: Kouichi FUKUDA, Jin AMAGAI, Seiji NOGUCHI, Toru INAGAKI, Masaki TANAKA
  • Patent number: 9117981
    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: Grant
    Filed: November 22, 2011
    Date of Patent: August 25, 2015
    Assignee: UBE Material Industries, Ltd.
    Inventors: Kouichi Fukuda, Jin Amagai, Seiji Noguchi, Toru Inagaki, Masaki Tanaka
  • Patent number: 9067799
    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: Grant
    Filed: September 30, 2013
    Date of Patent: June 30, 2015
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Fumio Okada, Takeshi Himoto, Rika Nogita, Kouichi Fukuda
  • 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
  • Publication number: 20150102261
    Abstract: A phosphor mixture comprising at least two phosphors A, B which give an emission spectrum having the maximum emission peak in the visible region, in which a wavelength of the maximum emission peak of the phosphor A differs from that of the maximum emission peak of the phosphor B by not more than 50 nm, and in which the maximum emission peak of the phosphor A has an emission intensity less than that of the phosphor B and the maximum emission peak of the phosphor A shows a half-width more than a half-width of that of the phosphor B gives an light emission having the maximum emission peak whose emission intensity is higher than that of the phosphor A and whose half-width is broader than that of the phosphor B.
    Type: Application
    Filed: May 22, 2013
    Publication date: April 16, 2015
    Inventors: Kouichi Fukuda, Jin Amagai, Toru Inagaki, Rika Nogita, Kenji Arima
  • 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: 20150041843
    Abstract: The deep red light-emitting magnesium fluorogermanate phosphor prepared by calcining a mixture comprising a fine magnesium oxide powder having a BET specific surface area in the range of 5-200 m2/g, a fluorine compound, a germanium compound and a manganese compound gives a light emission having a maximum peak of increased strength in the wavelength region of 640-680 nm upon excitation with a light having a wavelength of 400 nm.
    Type: Application
    Filed: March 26, 2013
    Publication date: February 12, 2015
    Inventors: Kouichi Fukuda, Rika Nogita, Jin Amagai, Toru Inagaki
  • 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
  • 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
  • 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: 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