Patents by Inventor Syunsuke SUMA

Syunsuke SUMA 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: 11364185
    Abstract: In a zinc oxide powder of the present invention, a content of a water-soluble substance is 0.30% by mass or less, and a mass ratio between an alkali metal and an alkaline earth metal which are included in the water-soluble substance is in a range of 1:2 to 10:1.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: June 21, 2022
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Syunsuke Suma, Shingo Hosoda, Kenichiro Nishida
  • Publication number: 20220169862
    Abstract: A zinc oxide powder in which a BET specific surface area (X) of the powder is 1.5 m2/g or more and 65 m2/g or less, a value obtained by a formula: an apparent specific volume (mL/g) measured by a loose packing method of the zinc oxide powder/an apparent specific volume (mL/g) measured by a tapping method of the zinc oxide powder is 1.5 or more and 2.5 or less, and Formula (1) and Formula (2) shown below are satisfied. A1/E2=aX+0.06??(1) (M2?M1)/E2?0.
    Type: Application
    Filed: August 3, 2021
    Publication date: June 2, 2022
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Tadashi NEYA, Masahiro NOBE, Syunsuke SUMA
  • Publication number: 20220169524
    Abstract: A zinc oxide powder in which a BET specific surface area of the powder is 8 m2/g or more and 65 m2/g or less, an apparent specific volume measured by a loose packing method of the powder is 1.0 mL/g or more and 7.5 mL/g or less, and a value indicated by (the apparent specific volume measured by the loose packing method/an apparent specific volume measured by a tapping method), which is obtained by dividing the apparent specific volume (mL/g) measured by the loose packing method by the apparent specific volume (mL/g) measured by the tapping method of the powder, is 1.50 or more and 2.50 or less.
    Type: Application
    Filed: August 3, 2021
    Publication date: June 2, 2022
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Tadashi NEYA, Masahiro NOBE, Syunsuke SUMA
  • Patent number: 11332621
    Abstract: A zinc oxide powder in which a BET specific surface area (X) of the powder is 1.5 m2/g or more and 65 m2/g or less, a value obtained by a formula: an apparent specific volume (mL/g) measured by a loose packing method of the zinc oxide powder/an apparent specific volume (mL/g) measured by a tapping method of the zinc oxide powder is 1.5 or more and 2.5 or less, and Formula (1) and Formula (2) shown below are satisfied. A1/E2=aX+0.06??(1) (M2?M1)/E2?0.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: May 17, 2022
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Tadashi Neya, Masahiro Nobe, Syunsuke Suma
  • Patent number: 11325840
    Abstract: A zinc oxide powder in which a BET specific surface area of the powder is 8 m2/g or more and 65 m2/g or less, an apparent specific volume measured by a loose packing method of the powder is 1.0 mL/g or more and 7.5 mL/g or less, and a value indicated by (the apparent specific volume measured by the loose packing method/an apparent specific volume measured by a tapping method), which is obtained by dividing the apparent specific volume (mL/g) measured by the loose packing method by the apparent specific volume (mL/g) measured by the tapping method of the powder, is 1.50 or more and 2.50 or less.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: May 10, 2022
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Tadashi Neya, Masahiro Nobe, Syunsuke Suma
  • Publication number: 20190314254
    Abstract: In a zinc oxide powder of the present invention, a content of a water-soluble substance is 0.30% by mass or less, and a mass ratio between an alkali metal and an alkaline earth metal which are included in the water-soluble substance is in a range of 1:2 to 10:1.
    Type: Application
    Filed: December 27, 2016
    Publication date: October 17, 2019
    Applicant: Sumitomo Osaka Cement Co., Ltd.
    Inventors: Syunsuke SUMA, Shingo HOSODA, Kenichiro NISHIDA
  • Patent number: 10363204
    Abstract: Zinc oxide coated with silicon oxide of the present invention is zinc oxide which is coated with silicon oxide wherein surfaces of zinc oxide particles are coated with silicon oxide coatings, and the coated zinc oxide particles comprises at least one element selected from a group consisting of Mg, Ca, and Ba.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: July 30, 2019
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Tetsuro Itagaki, Syunsuke Suma, Gaku Fujihashi
  • Patent number: 10238589
    Abstract: Provided are a silicon oxide-coated zinc oxide, a method for producing the same, a composition and a cosmetic including a silicon oxide-coated zinc oxide. The silicon oxide-coated zinc oxide is a silicon oxide-coated zinc oxide formed by coating surfaces of zinc oxide particles with a silicon oxide coat, in which an average particle diameter of the zinc oxide particles is in a range of more than 50 nm and 500 nm or less, and, when an abundance ratio of silicon in the silicon oxide coat in a Q3 environment is indicated by Q3, and an abundance ratio in a Q4 environment is indicated by Q4, Q3+Q4?0.6 and Q4/(Q3+Q4)?0.5 are satisfied.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: March 26, 2019
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Tetsuro Itagaki, Gaku Fujihashi, Syunsuke Suma
  • Publication number: 20180289600
    Abstract: The present invention provides silicon oxide-coated zinc oxide in which, in a silica coating formed of a silicate alkali metal salt, the elution of zinc ions is suppressed, a method for preparing the same, a composition containing silicon oxide-coated zinc oxide, and a cosmetic material. The silicon oxide-coated zinc oxide of the present invention is silicon oxide-coated zinc oxide formed by coating surfaces of zinc oxide particles with a silicon oxide coating, in which an average primary particle diameter of the zinc oxide particles is more than 50 nm and 500 nm or less, and when held in a buffer solution having a pH of 5 for 1 hour, an elution ratio S of the zinc oxide defined by following Expression (1) is 50% or less.
    Type: Application
    Filed: November 11, 2015
    Publication date: October 11, 2018
    Inventors: Syunsuke SUMA, Tetsuro ITAGAKI, Hirokazu MATSUSHITA
  • Publication number: 20180256461
    Abstract: Zinc oxide powder of the present invention contains zinc oxide particles, in which primary particles of the zinc oxide particles have a minor axis of 35 nm or more and 350 nm or less and have a Heywood diameter of 35 nm or more and 400 nm or less, and a coefficient of variation of a number distribution of the Heywood diameters of the primary particles of the zinc oxide powder is 50% or less.
    Type: Application
    Filed: August 25, 2016
    Publication date: September 13, 2018
    Inventors: Gaku FUJIHASHI, Shingo HOSODA, Kenichiro NISHIDA, Syunsuke SUMA
  • Publication number: 20180161255
    Abstract: Provided is silicon oxide-coated zinc oxide, which can inhibit a decrease in viscosity resulting from a carbomer in a case where the silicon oxide-coated zinc oxide is used in water-based materials, a composition containing silicon oxide-coated zinc oxide, and a cosmetic product. The silicon oxide-coated zinc oxide of the present invention contains zinc oxide particles and a silicon oxide coating on a surface of the zinc oxide particles, in which an electric conductivity of a water suspension of the silicon oxide-coated zinc oxide is 120 ?S/cm or less.
    Type: Application
    Filed: February 24, 2016
    Publication date: June 14, 2018
    Inventors: Syunsuke SUMA, Tetsuro ITAGAKI, Gaku FUJIHASHI, Hirokazu MATSUSHITA
  • Patent number: 9855197
    Abstract: Zinc oxide coated with silicon oxide of the present invention is zinc oxide which is coated with silicon oxide wherein surfaces of zinc oxide particles are coated with silicon oxide coatings, and the coated zinc oxide particles comprises at least one element selected from a group consisting of Mg, Ca, and Ba.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: January 2, 2018
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Tetsuro Itagaki, Syunsuke Suma, Gaku Fujihashi
  • Publication number: 20170266084
    Abstract: Zinc oxide coated with silicon oxide of the present invention is zinc oxide which is coated with silicon oxide wherein surfaces of zinc oxide particles are coated with silicon oxide coatings, and the coated zinc oxide particles comprises at least one element selected from a group consisting of Mg, Ca, and Ba.
    Type: Application
    Filed: June 5, 2017
    Publication date: September 21, 2017
    Inventors: Tetsuro ITAGAKI, Syunsuke SUMA, Gaku FUJIHASHI
  • Patent number: 9642785
    Abstract: Provided are a silicon-oxide-coated zinc oxide capable of suppressing the elution of zinc ions from zinc oxide particles, a method for manufacturing the same, a silicon-oxide-coated-zinc-oxide-containing composition, and a cosmetic. The silicon-oxide-coated zinc oxide is a silicon-oxide-coated zinc oxide formed by coating the surfaces of zinc oxide particles with a silicon oxide coating, in which the average particle diameter of the zinc oxide particles is in a range of 1 nm or more and 50 nm or less, when the abundance ratio of silicon in the silicon oxide coating in a Q3 environment is indicated by Q3, and the abundance ratio in a Q4 environment is indicated by Q4, Q3+Q4?0.6 and Q4/(Q3+Q4)?0.5, and furthermore, the decomposition ratio of Brilliant Blue generated by the photocatalytic activity of the zinc oxide particles is 3% or less.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: May 9, 2017
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Tetsuro Itagaki, Yoshiki Kusahara, Gaku Fujihashi, Syunsuke Suma
  • Publication number: 20170095407
    Abstract: Provided are a silicon oxide-coated zinc oxide, a method for producing the same, a composition and a cosmetic including a silicon oxide-coated zinc oxide. The silicon oxide-coated zinc oxide is a silicon oxide-coated zinc oxide formed by coating surfaces of zinc oxide particles with a silicon oxide coat, in which an average particle diameter of the zinc oxide particles is in a range of more than 50 nm and 500 nm or less, and, when an abundance ratio of silicon in the silicon oxide coat in a Q3 environment is indicated by Q3, and an abundance ratio in a Q4 environment is indicated by Q4, Q3+Q4?0.6 and Q4/(Q3+Q4)?0.5 are satisfied.
    Type: Application
    Filed: March 30, 2015
    Publication date: April 6, 2017
    Inventors: Tetsuro ITAGAKI, Gaku FUJIHASHI, Syunsuke SUMA
  • Publication number: 20160287488
    Abstract: Zinc oxide coated with silicon oxide of the present invention is zinc oxide which is coated with silicon oxide wherein surfaces of zinc oxide particles are coated with silicon oxide coatings, and the coated zinc oxide particles comprises at least one element selected from a group consisting of Mg, Ca, and Ba.
    Type: Application
    Filed: November 13, 2014
    Publication date: October 6, 2016
    Inventors: Tetsuro ITAGAKI, Syunsuke SUMA, Gaku FUJIHASHI
  • Publication number: 20160221835
    Abstract: Zinc oxide powder of the present invention has a specific surface area which is in a range of 1.5 m2/g to 65 m2/g, a conductivity which is 150 ?S/cm or less and a bulk specific volume which is in a range of 0.5 mL/g to 10 mL/g.
    Type: Application
    Filed: July 28, 2015
    Publication date: August 4, 2016
    Inventors: Tadashi Neya, Tetsuro Itagaki, Syunsuke Suma
  • Patent number: 9403691
    Abstract: Zinc oxide powder of the present invention has a specific surface area which is in a range of 1.5 m2/g to 65 m2/g, a conductivity which is 150 ?S/cm or less and a bulk specific volume which is in a range of 0.5 mL/g to 10 mL/g.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: August 2, 2016
    Assignee: Sumitomo Osaka Cement Co., Ltd.
    Inventors: Tadashi Neya, Tetsuro Itagaki, Syunsuke Suma
  • Publication number: 20160045411
    Abstract: Provided are a silicon-oxide-coated zinc oxide capable of suppressing the elution of zinc ions from zinc oxide particles, a method for manufacturing the same, a silicon-oxide-coated-zinc-oxide-containing composition, and a cosmetic. The silicon-oxide-coated zinc oxide is a silicon-oxide-coated zinc oxide formed by coating the surfaces of zinc oxide particles with a silicon oxide coating, in which the average particle diameter of the zinc oxide particles is in a range of 1 nm or more and 50 nm or less, when the abundance ratio of silicon in the silicon oxide coating in a Q3 environment is indicated by Q3, and the abundance ratio in a Q4 environment is indicated by Q4, Q3+Q4?0.6 and Q4/(Q3+Q4)?0.5, and furthermore, the decomposition ratio of Brilliant Blue generated by the photocatalytic activity of the zinc oxide particles is 3% or less.
    Type: Application
    Filed: March 31, 2014
    Publication date: February 18, 2016
    Inventors: Tetsuro ITAGAKI, Yoshiki KUSAHARA, Gaku FUJIHASHI, Syunsuke SUMA