Patents by Inventor Toshihisa Anazawa
Toshihisa Anazawa 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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Patent number: 11626524Abstract: A photoexcitable material includes: a solid solution of MN (where M is at least one of gallium, aluminum and indium) and ZnO, wherein the photoexcitable material includes 30 to 70 mol % ZnO and has a band gap energy of 2.20 eV or less.Type: GrantFiled: June 11, 2019Date of Patent: April 11, 2023Assignee: FUJITSU LIMITEDInventors: Hideyuki Amada, Fumiaki Kumasaka, Toshio Manabe, Toshihisa Anazawa, Yoshihiko Imanaka
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Patent number: 11322310Abstract: A photochemical electrode includes: an electrically conductive layer; and a photoexcitation material layer provided over the electrically conductive layer and including a photoexcitation material, wherein the photoexcitation material layer is one of a first photoexcitation material layer in which a potential of the conduction band minimum decreases from a second surface opposite to a first surface on the side of the electrically conductive layer toward the first surface and a second photoexcitation material layer in which a potential of the valence band maximum decreases from the second surface toward the first surface.Type: GrantFiled: June 16, 2020Date of Patent: May 3, 2022Assignee: FUJITSU LIMITEDInventors: Yoshihiko Imanaka, Hideyuki Amada, Toshio Manabe, Toshihisa Anazawa, Sachio Ido, Naoki Awaji
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Patent number: 11313046Abstract: A photochemical electrode includes: an electrically-conductive layer; and a photo-excited material layer including a photo-excited material provided over the electrically-conductive layer, wherein in a surface of the photo-excited material layer, a lattice plane having highest atomic density in a crystal structure of the photo-excited material is oriented in a surface direction of the surface of the photo-excited material layer.Type: GrantFiled: October 9, 2019Date of Patent: April 26, 2022Assignee: FUJITSU LIMITEDInventors: Yoshihiko Imanaka, Hideyuki Amada, Toshio Manabe, Toshihisa Anazawa, Sachio Ido, Naoki Awaji
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Publication number: 20220083625Abstract: An information processing system that solves a quadratic assignment problem in which a first matrix and a second matrix are used to calculate a cost value based on an energy function of an Ising model, the information processing system includes an information processing device configured to acquire a plurality of matrices, perform, for the plurality of matrices, correction to add or subtract a first value to or from at least one of a first group of element values that corresponds to a first element value of the first matrix or a second group of element values that corresponds to a second element value of the second matrix, and an optimization device configured to search for a ground state of the Ising model based on the output information of the energy function obtained by formulating the quadratic assignment problem based on the plurality of matrices after the correction.Type: ApplicationFiled: July 1, 2021Publication date: March 17, 2022Applicant: FUJITSU LIMITEDInventors: Toshihisa Anazawa, SATOSHI SHIMOKAWA
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Publication number: 20210064799Abstract: A non-transitory computer-readable recording medium stores therein a design program for causing a computer to execute a process for designing a composition of a perovskite type crystal structure, the design program comprising causing a computer to determine a combination of Ai and Bi in the following formula (2) created by taking a logarithm of a formula of a tolerance factor (t) represented by the following formula (1), in which log t is 0 or close to 0, by executing ground state search by an annealing method using an Ising model or QUBO, t = ( r A + r X ) 2 ? ( r B + r X ) = d A ? - ? X 2 ? d B ? - ? X Formula ? ? ( 1 ) log ? ? t = ? i = 1 n ? A i - ? i = 1 n ? B i .Type: ApplicationFiled: August 24, 2020Publication date: March 4, 2021Applicant: FUJITSU LIMITEDInventors: Toshihisa Anazawa, Yoshihiko Imanaka, SATOSHI SHIMOKAWA, Hirotaka Oshima
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Publication number: 20200312575Abstract: A photochemical electrode includes: an electrically conductive layer; and a photoexcitation material layer provided over the electrically conductive layer and including a photoexcitation material, wherein the photoexcitation material layer is one of a first photoexcitation material layer in which a potential of the conduction band minimum decreases from a second surface opposite to a first surface on the side of the electrically conductive layer toward the first surface and a second photoexcitation material layer in which a potential of the valence band maximum decreases from the second surface toward the first surface.Type: ApplicationFiled: June 16, 2020Publication date: October 1, 2020Applicant: FUJITSU LIMITEDInventors: Yoshihiko IMANAKA, Hideyuki AMADA, Toshio MANABE, Toshihisa ANAZAWA, Sachio IDO, Naoki AWAJI
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Publication number: 20200040472Abstract: A photochemical electrode includes: an electrically-conductive layer; and a photo-excited material layer including a photo-excited material provided over the electrically-conductive layer, wherein in a surface of the photo-excited material layer, a lattice plane having highest atomic density in a crystal structure of the photo-excited material is oriented in a surface direction of the surface of the photo-excited material layer.Type: ApplicationFiled: October 9, 2019Publication date: February 6, 2020Applicant: FUJITSU LIMITEDInventors: Yoshihiko Imanaka, Hideyuki AMADA, Toshio MANABE, Toshihisa Anazawa, Sachio IDO, Naoki AWAJI
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Patent number: 10533257Abstract: A photochemical electrode includes a conductive oxide. Fermi energy of the conductive oxide is higher than a first energy minimum of a first band having a lowest energy and is lower than a second energy minimum of a second band having a higher energy than the first band among bands whose curvatures are positive in reciprocal space. The first energy minimum and the second energy minimum are at the same point of wave vector. A difference between the second energy minimum and the first energy minimum is not less than 1 eV nor more than 3 eV, and is smaller than a difference between the first energy minimum and an energy maximum of a band having a highest energy among bands whose curvatures are negative.Type: GrantFiled: August 8, 2017Date of Patent: January 14, 2020Assignee: Fujitsu LimitedInventors: John David Baniecki, Toshihisa Anazawa, Yoshihiko Imanaka
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Patent number: 10507455Abstract: A photocatalyst, represented by the following general formula (1): X(VO4)6(OH)2??General Formula (1) wherein X represents Za1Tib1 or Za2Tib2Agc2 (where Z is Ca or Sr; a1 is 7.0 to 9.5; b1 is 0.5 to 3.0; a2 is 7.0 to 9.5; b2 is 0.4 to 1.5; c2 is 0.1 to 2.0; a1+b1 is 9.0 to 10.0; and a2+b2+c2 is 9.0 to 10.0) in the general formula (1).Type: GrantFiled: May 5, 2015Date of Patent: December 17, 2019Assignee: FUJITSU LIMITEDInventors: Mineharu Tsukada, Florence Nawalage Cooray, Toshihisa Anazawa, Masato Wakamura
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Publication number: 20190296165Abstract: A photoexcitable material includes: a solid solution of MN (where M is at least one of gallium, aluminum and indium) and ZnO, wherein the photoexcitable material includes 30 to 70 mol % ZnO and has a band gap energy of 2.20 eV or less.Type: ApplicationFiled: June 11, 2019Publication date: September 26, 2019Applicant: FUJITSU LIMITEDInventors: Hideyuki AMADA, Fumiaki KUMASAKA, Toshio MANABE, Toshihisa Anazawa, Yoshihiko Imanaka
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Patent number: 10407319Abstract: A photocatalytic filter including first photocatalytic particles each of which is a composite of an adsorbent and titanium apatite, second photocatalytic particles each of which is glass coated with titanium apatite, a light source configured to emit ultraviolet rays, and a container accommodating the first photocatalytic particles, the second photocatalytic particles, and the light source.Type: GrantFiled: September 6, 2017Date of Patent: September 10, 2019Assignee: FUJITSU LIMITEDInventors: Masato Wakamura, Mineharu Tsukada, Toshihisa Anazawa
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Patent number: 10328419Abstract: A photoexcitation material includes: a wurtzite type solid solution crystal containing t gallium, zinc, nitrogen and oxygen, wherein a peak (A) of an existence ratio of nitrogen or oxygen which is a first adjacent atom of the gallium or zinc and a peak (B) of an existence ratio of gallium or zinc which is a second adjacent atom of the gallium or zinc satisfy a relational expression of A>B in a relationship between a distance and the existence ratio of the adjacent atom of the gallium or zinc, the relationship being obtained from an extended X-ray absorption fine structure analysis.Type: GrantFiled: June 13, 2018Date of Patent: June 25, 2019Assignee: FUJITSU LIMITEDInventors: Toshihisa Anazawa, Yoshihiko Imanaka, Toshio Manabe, Hideyuki Amada, Sachio Ido, Fumiaki Kumasaka, Naoki Awaji
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Publication number: 20190001258Abstract: A carbon-dioxide-reducing film includes, an electrically conductive material, a carbon-dioxide adsorbent, and a proton-permeable high-molecular-weight material. The electrically conductive material includes at least one selected from a group consisting of carbon nanotubes, nanographenes, and carbon paper.Type: ApplicationFiled: June 27, 2018Publication date: January 3, 2019Applicant: FUJITSU LIMITEDInventors: Toshio MANABE, Yoshihiko Imanaka, Toshihisa Anazawa, Hideyuki AMADA
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Publication number: 20180290130Abstract: A photoexcitation material includes: a wurtzite type solid solution crystal containing t gallium, zinc, nitrogen and oxygen, wherein a peak (A) of an existence ratio of nitrogen or oxygen which is a first adjacent atom of the gallium or zinc and a peak (B) of an existence ratio of gallium or zinc which is a second adjacent atom of the gallium or zinc satisfy a relational expression of A>B in a relationship between a distance and the existence ratio of the adjacent atom of the gallium or zinc, the relationship being obtained from an extended X-ray absorption fine structure analysis.Type: ApplicationFiled: June 13, 2018Publication date: October 11, 2018Applicant: FUJITSU LIMITEDInventors: Toshihisa Anazawa, Yoshihiko Imanaka, Toshio MANABE, Hideyuki AMADA, Sachio IDO, Fumiaki KUMASAKA, Naoki AWAJI
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Patent number: 10016746Abstract: A photoexcitation material includes: a wurtzite type solid solution crystal containing gallium, zinc, nitrogen and oxygen, wherein a peak (A) of an existence ratio of nitrogen or oxygen which is a first adjacent atom of the gallium or zinc and a peak (B) of an existence ratio of gallium or zinc which is a second adjacent atom of the gallium or zinc satisfy a relational expression of A>B in a relationship between a distance and the existence ratio of the adjacent atom of the gallium or zinc, the relationship being obtained from an extended X-ray absorption fine structure analysis.Type: GrantFiled: April 28, 2017Date of Patent: July 10, 2018Assignee: FUJITSU LIMITEDInventors: Toshihisa Anazawa, Yoshihiko Imanaka, Toshio Manabe, Hideyuki Amada, Sachio Ido, Fumiaki Kumasaka, Naoki Awaji
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Publication number: 20180044803Abstract: A photochemical electrode includes a conductive oxide. Fermi energy of the conductive oxide is higher than a first energy minimum of a first band having a lowest energy and is lower than a second energy minimum of a second band having a higher energy than the first band among bands whose curvatures are positive in reciprocal space. The first energy minimum and the second energy minimum are at the same point of wave vector. A difference between the second energy minimum and the first energy minimum is not less than 1 eV nor more than 3 eV, and is smaller than a difference between the first energy minimum and an energy maximum of a band having a highest energy among bands whose curvatures are negative.Type: ApplicationFiled: August 8, 2017Publication date: February 15, 2018Applicant: FUJITSU LIMITEDInventors: John David Baniecki, Toshihisa Anazawa, Yoshihiko Imanaka
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Publication number: 20170362096Abstract: A photocatalytic filter including first photocatalytic particles each of which is a composite of an adsorbent and titanium apatite, second photocatalytic particles each of which is glass coated with titanium apatite, a light source configured to emit ultraviolet rays, and a container accommodating the first photocatalytic particles, the second photocatalytic particles, and the light source.Type: ApplicationFiled: September 6, 2017Publication date: December 21, 2017Applicant: FUJITSU LIMITEDInventors: Masato Wakamura, Mineharu Tsukada, Toshihisa Anazawa
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Publication number: 20170345956Abstract: A photoexcitable material includes: a solid solution of MN (where M is at least one of gallium, aluminum and indium) and ZnO, wherein the photoexcitable material includes 30 to 70 mol % ZnO and has a band gap energy of 2.20 eV or less.Type: ApplicationFiled: April 28, 2017Publication date: November 30, 2017Applicant: FUJITSU LIMITEDInventors: Hideyuki AMADA, Fumiaki KUMASAKA, Toshio MANABE, Toshihisa Anazawa, Yoshihiko Imanaka
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Publication number: 20170341062Abstract: A photoexcitation material includes: a wurtzite type solid solution crystal containing gallium, zinc, nitrogen and oxygen, wherein a peak (A) of an existence ratio of nitrogen or oxygen which is a first adjacent atom of the gallium or zinc and a peak (B) of an existence ratio of gallium or zinc which is a second adjacent atom of the gallium or zinc satisfy a relational expression of A>B in a relationship between a distance and the existence ratio of the adjacent atom of the gallium or zinc, the relationship being obtained from an extended X-ray absorption fine structure analysis.Type: ApplicationFiled: April 28, 2017Publication date: November 30, 2017Applicant: FUJITSU LIMITEDInventors: Toshihisa Anazawa, Yoshihiko Imanaka, Toshio MANABE, Hideyuki AMADA, Sachio IDO, Fumiaki KUMASAKA, Naoki AWAJI
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Publication number: 20170314147Abstract: A photochemical electrode includes: an electrically-conductive layer; and a photo-excited material layer including a photo-excited material provided over the electrically-conductive layer, wherein in a surface of the photo-excited material layer, a lattice plane having highest atomic density in a crystal structure of the photo-excited material is oriented in a surface direction of the surface of the photo-excited material layer.Type: ApplicationFiled: March 23, 2017Publication date: November 2, 2017Applicant: FUJITSU LIMITEDInventors: Yoshihiko Imanaka, Hideyuki AMADA, Toshio MANABE, Toshihisa Anazawa, Sachio IDO, Naoki AWAJI