Patents by Inventor Daisuke Fukushi
Daisuke Fukushi 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).
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Publication number: 20240082824Abstract: According to one embodiment, there is provided a multielement composite oxide powder that includes an oxide particle including a composite oxide, the composite oxide containing: constituent metal elements containing two or more hexavalent metal elements and two or more pentavalent metal elements at a content of 80 atm % or more in total; and oxygen. The oxide particle has a major axis and a minor axis intersecting the major axis, and has a polygonal tunnel structure including one or more polygonal tunnels of five or more vertices in a major axis direction along the major axis.Type: ApplicationFiled: November 14, 2023Publication date: March 14, 2024Applicant: TOSHIBA MATERIALS CO., LTD.Inventors: Daisuke FUKUSHI, Seiichi SUENAGA, Akito SASAKI, Masaki TOYOSHIMA
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Patent number: 11884882Abstract: According to one embodiment, provided is an electrochromic device including an electrochromic layer, which contains a tungsten oxide material. The tungsten oxide material includes potassium-containing tungsten oxide particles having an average particle size of 100 nm or less. The potassium-containing tungsten oxide particles contain potassium within a range of 1 mol % to 50 mol %, and include a central section and a peripheral section adjacent to the central section. A periodicity of a crystal varies between the central section and the peripheral section.Type: GrantFiled: September 3, 2021Date of Patent: January 30, 2024Assignees: Toshiba Materials Co., Ltd., Hayashi Telempu CorporationInventors: Daisuke Fukushi, Shuichi Saito, Michiaki Fukui
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Publication number: 20230341739Abstract: According to one embodiment, provided is a tungsten oxide powder including primary particles having an average particle size of 100 nm or less. Each of the primary particles include a crystal phase and an amorphous phase coexisting in each primary particle.Type: ApplicationFiled: June 15, 2023Publication date: October 26, 2023Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.Inventor: Daisuke FUKUSHI
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Publication number: 20230295004Abstract: According to one embodiment, provided is a tungsten oxide powder slurry in which a tungsten oxide powder and an aqueous solvent are mixed. D50 is 20 nm to 10000 nm and D90 is 100000 nm or less in a particle size cumulative graph of the tungsten oxide powder in the slurry. According to X-ray diffraction, a half-value width of a most intense peak detected at 29°±1° is 2° or less.Type: ApplicationFiled: May 24, 2023Publication date: September 21, 2023Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.Inventor: Daisuke FUKUSHI
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Publication number: 20230120411Abstract: According to one embodiment, a tungsten oxide material containing potassium is provided. The tungsten oxide material has a shape of particles including a central section and a peripheral section adjacent to the central section, and having an average particle size of 100 nm or less. A periodicity of a crystal varies between the central section and the peripheral section. In addition, a tungsten oxide powder mass for an electrochromic device including 80% by mass to 100% by mass of the tungsten oxide material is provided. Moreover, a slurry for producing an electrochromic device containing the above tungsten oxide material is provided.Type: ApplicationFiled: December 21, 2022Publication date: April 20, 2023Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.Inventors: Daisuke FUKUSHI, Shuichi SAITO
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Publication number: 20220100045Abstract: According to one embodiment, provided is an electrochromic device including an electrochromic layer, which contains a tungsten oxide material. The tungsten oxide material includes potassium-containing tungsten oxide particles having an average particle size of 100 nm or less. The potassium-containing tungsten oxide particles contain potassium within a range of 1 mol % to 50 mol %, and include a central section and a peripheral section adjacent to the central section. A periodicity of a crystal varies between the central section and the peripheral section.Type: ApplicationFiled: September 3, 2021Publication date: March 31, 2022Applicants: TOSHIBA MATERIALS CO., LTD., HAYASHI TELEMPU CORPORATIONInventors: Daisuke FUKUSHI, Shuichi SAITO, Michiaki FUKUI
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Publication number: 20220002166Abstract: According to one embodiment, a tungsten oxide powder is provided. The tungsten oxide has an average particle size along a major axis of 10 ?m or less, an average aspect ratio of 10 or less, and 0 to 4 crystal defects per unit area of 9 nm2 on a surface or sectional surface in a direction of a minor axis of a primary particle.Type: ApplicationFiled: September 21, 2021Publication date: January 6, 2022Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.Inventors: Daisuke FUKUSHI, Hideaki HIRABAYASHI, Akito SASAKI, Ryosuke HIRAMATSU, Atsuya SASAKI, Takaki MOROOKA, Yoichiro MORI
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Publication number: 20200048107Abstract: According to one embodiment, nano metal compound particles are provided. The nano metal compound particles have an average particle size of 50 nm or less. The nano metal compound particles have a peak ?t of 2.8 eV or less. The peak ?t corresponds to a resonant frequency of an oscillator according to a spectroscopic ellipsometry method fitted to a Lorentz model.Type: ApplicationFiled: October 22, 2019Publication date: February 13, 2020Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.Inventors: Yuzo SHIGESATO, Junjun Jia, Daisuke Fukushi, Hideaki Hirabayashi, Yoshinori Kataoka, Akito Sasaki, Atsuya Sasaki
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Patent number: 10335771Abstract: An aqueous dispersion of an embodiment includes visible-light responsive photocatalytic composite microparticles containing tungsten oxide and zirconium oxide, and an aqueous dispersion medium in which the photocatalytic composite microparticles are dispersed. In the photocatalytic composite microparticles, a ratio of a mass of the zirconium oxide to a mass of the tungsten oxide is in a range of from 0.05% to 200%, and a D50 particle size in particle size distribution is in a range of from 20 nm to 10 ?m. The aqueous dispersion has pH in a range of from 1 to 9.Type: GrantFiled: June 6, 2018Date of Patent: July 2, 2019Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Daisuke Fukushi, Takao Kusaka, Akira Sato, Kayo Nakano, Akihisa Nitsuta, Yukiko Inui, Hiroyasu Oota
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Patent number: 10327445Abstract: In one embodiment, an antiviral material includes at least one microparticles selected from tungsten oxide microparticles and tungsten oxide composite microparticles. The microparticles have an inactivation effect R of 1 or more expressed by [R=log C?log A], when there is evaluated a virus titer by inoculating on a specimen to which the microparticles are adhered, at least one virus selected from a low pathogenic avian influenza virus (H9N2), a high pathogenic avian influenza virus (H5N1) and a swine influenza virus, and irradiating the specimen with visible light having a wavelength of 380 nm or more and illuminance of 6000 lx. for 24 hours.Type: GrantFiled: April 25, 2014Date of Patent: June 25, 2019Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.Inventors: Kayo Nakano, Akira Sato, Takao Kusaka, Shinya Kasamatsu, Akito Sasaki, Daisuke Fukushi
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Publication number: 20180290127Abstract: An aqueous dispersion of an embodiment includes visible-light responsive photocatalytic composite microparticles containing tungsten oxide and zirconium oxide, and an aqueous dispersion medium in which the photocatalytic composite microparticles are dispersed. In the photocatalytic composite microparticles, a ratio of a mass of the zirconium oxide to a mass of the tungsten oxide is in a range of from 0.05% to 200%, and a D50 particle size in particle size distribution is in a range of from 20 nm to 10 ?m. The aqueous dispersion has pH in a range of from 1 to 9.Type: ApplicationFiled: June 6, 2018Publication date: October 11, 2018Applicants: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Daisuke FUKUSHI, Takao Kusaka, Akira Sato, Kayo Nakano, Akihisa Nitsuta, Yukiko Inui, Hiroyasu Oota
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Patent number: 10081850Abstract: A cation adsorbent of an embodiment includes tungsten oxide particles having a BET specific surface area in a range of 0.82 m2/g or more and 820 m2/g or less. The cation adsorbent is added to a solution to be treated containing cations being recovery objects, and the cation adsorbent adsorbing the cations is precipitated. The generated precipitate is separated from the solution to recover the cations.Type: GrantFiled: June 9, 2016Date of Patent: September 25, 2018Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Akira Sato, Daisuke Fukushi, Takao Kusaka, Kayo Nakano, Yukiko Inui, Akito Sasaki
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Patent number: 10010869Abstract: An aqueous dispersion of an embodiment includes visible-light responsive photocatalytic composite microparticles containing tungsten oxide and zirconium oxide, and an aqueous dispersion medium in which the photocatalytic composite microparticles are dispersed. In the photocatalytic composite microparticles, a ratio of a mass of the zirconium oxide to a mass of the tungsten oxide is in a range of from 0.05% to 200%, and a D50 particle size in particle size distribution is in a range of from 20 nm to 10 ?m. The aqueous dispersion has pH in a range of from 1 to 9.Type: GrantFiled: March 7, 2014Date of Patent: July 3, 2018Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Daisuke Fukushi, Takao Kusaka, Akira Sato, Kayo Nakano, Akihisa Nitsuta, Yukiko Inui, Hiroyasu Oota
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Publication number: 20160289794Abstract: A cation adsorbent of an embodiment includes tungsten oxide particles having a BET specific surface area in a range of 0.82 m2/g or more and 820 m2/g or less. The cation adsorbent is added to a solution to be treated containing cations being recovery objects, and the cation adsorbent adsorbing the cations is precipitated. The generated precipitate is separated from the solution to recover the cations.Type: ApplicationFiled: June 9, 2016Publication date: October 6, 2016Applicants: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Akira SATO, Daisuke FUKUSHI, Takao KUSAKA, Kayo NAKANO, Yukiko INUI, Akito SASAKI
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Patent number: 9409144Abstract: A cation adsorbent of an embodiment includes tungsten oxide particles having a BET specific surface area in a range of 0.82 m2/g or more and 820 m2/g or less. The cation adsorbent is added to a solution to be treated containing cations being recovery objects, and the cation adsorbent adsorbing the cations is precipitated. The generated precipitate is separated from the solution to recover the cations.Type: GrantFiled: February 18, 2014Date of Patent: August 9, 2016Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Akira Sato, Daisuke Fukushi, Takao Kusaka, Kayo Nakano, Yukiko Inui, Akito Sasaki
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Publication number: 20140234385Abstract: In one embodiment, an antiviral material includes at least one microparticles selected from tungsten oxide microparticles and tungsten oxide composite microparticles. The microparticles have an inactivation effect R of 1 or more expressed by [R=log C?log A], when there is evaluated a virus titer by inoculating on a specimen to which the microparticles are adhered, at least one virus selected from a low pathogenic avian influenza virus (H9N2), a high pathogenic avian influenza virus (H5N1) and a swine influenza virus, and irradiating the specimen with visible light having a wavelength of 380 nm or more and illuminance of 6000 lx. for 24 hours.Type: ApplicationFiled: April 25, 2014Publication date: August 21, 2014Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.Inventors: Kayo NAKANO, Akira SATO, Takao KUSAKA, Shinya KASAMATSU, Akito SASAKI, Daisuke FUKUSHI
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Publication number: 20140187414Abstract: An aqueous dispersion of an embodiment includes visible-light responsive photocatalytic composite microparticles containing tungsten oxide and zirconium oxide, and an aqueous dispersion medium in which the photocatalytic composite microparticles are dispersed. In the photocatalytic composite microparticles, a ratio of a mass of the zirconium oxide to a mass of the tungsten oxide is in a range of from 0.05% to 200%, and a D50 particle size in particle size distribution is in a range of from 20 nm to 10 ?m. The aqueous dispersion has pH in a range of from 1 to 9.Type: ApplicationFiled: March 7, 2014Publication date: July 3, 2014Applicants: Toshiba Materials Co., Ltd., Kabushiki Kaisha ToshibaInventors: Daisuke FUKUSHI, Takao KUSAKA, Akira SATO, Kayo NAKANO, Akihisa NITSUTA, Yukiko INUI, Hiroyasu OOTA
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Publication number: 20140158627Abstract: A cation adsorbent of an embodiment includes tungsten oxide particles having a BET specific surface area in a range of 0.82 m2/g or more and 820 m2/g or less. The cation adsorbent is added to a solution to be treated containing cations being recovery objects, and the cation adsorbent adsorbing the catious is precipitated. The generated precipitate is separated from the solution to recover the cations.Type: ApplicationFiled: February 18, 2014Publication date: June 12, 2014Applicants: Toshiba Materials Co., Ltd., Kabushiki Kaisha ToshibaInventors: Akira SATO, Daisuke FUKUSHI, Takao KUSAKA, Kayo NAKANO, Yukiko INUI, Akito SASAKI
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Patent number: 8741349Abstract: In one embodiment, an antiviral material includes at least one microparticles selected from tungsten oxide microparticles and tungsten oxide composite microparticles. The microparticles have an inactivation effect R of 1 or more expressed by [R=log C?log A], when there is evaluated a virus titer by inoculating on a specimen to which the microparticles are adhered, at least one virus selected from a low pathogenic avian influenza virus (H9N2), a high pathogenic avian influenza virus (H5N1) and a swine influenza virus, and irradiating the specimen with visible light having a wavelength of 380 nm or more and illuminance of 6000 1× for 24 hours.Type: GrantFiled: February 9, 2012Date of Patent: June 3, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co. Ltd.Inventors: Kayo Nakano, Akira Sato, Takao Kusaka, Shinya Kasamatsu, Akito Sasaki, Daisuke Fukushi
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Publication number: 20120201861Abstract: In one embodiment, an antiviral material includes at least one microparticles selected from tungsten oxide microparticles and tungsten oxide composite microparticles. The microparticles have an inactivation effect R of 1 or more expressed by [R=logC?logA], when there is evaluated a virus titer by inoculating on a specimen to which the microparticles are adhered, at least one virus selected from a low pathogenic avian influenza virus (H9N2), a high pathogenic avian influenza virus (H5N1) and a swine influenza virus, and irradiating the specimen with visible light having a wavelength of 380 nm or more and illuminance of 6000 1× for 24 hours.Type: ApplicationFiled: February 9, 2012Publication date: August 9, 2012Inventors: Kayo NAKANO, Akira Sato, Takao Kusaka, Shinya Kasamatsu, Akito Sasaki, Daisuke Fukushi