Patents by Inventor Isamu Yashima

Isamu Yashima 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: 11569528
    Abstract: In a solid electrolyte integrated device including a substrate with electrically insulated surfaces, a first lower electrode layer and a second upper electrode layer are electrically connected to each other on a first main surface side, and a first upper electrode layer, the first lower electrode layer, the second upper electrode layer, and a second lower electrode layer transmit ions and/or have ion redox ability, contain a metal or a metal oxide or both of a metal and a metal oxide, and have a permeable portion.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: January 31, 2023
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Shingo Ide, Isamu Yashima, Kenji Kume
  • Publication number: 20200067135
    Abstract: In a solid electrolyte integrated device including a substrate with electrically insulated surfaces, a first lower electrode layer and a second upper electrode layer are electrically connected to each other on a first main surface side, and a first upper electrode layer, the first lower electrode layer, the second upper electrode layer, and a second lower electrode layer transmit ions and/or have ion redox ability, contain a metal or a metal oxide or both of a metal and a metal oxide, and have a permeable portion.
    Type: Application
    Filed: April 3, 2018
    Publication date: February 27, 2020
    Inventors: Shingo Ide, Isamu Yashima, Kenji Kume
  • Patent number: 9393522
    Abstract: Provided is a particulate combustion catalyst including a carrier formed of monoclinic zirconium oxide particles, and metallic Ag or Ag oxide, which serves as a catalyst component and is supported on the carrier, wherein the amount of the catalyst component is 0.5 to 10 mass %, as reduced to metallic Ag, on the basis of the mass of the carrier, and preferably, the catalyst has a BET specific surface area of 8 to 21 m2/g. Also provided are a particulate filter coated with the particulate combustion catalyst; and an exhaust gas cleaning apparatus including a particulate filter coated with the particulate combustion catalyst.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: July 19, 2016
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Takahito Asanuma, Hiromitsu Takagi, Isamu Yashima, Akira Abe
  • Patent number: 9334580
    Abstract: A manganese oxide particle having a hexagonal crystal structure or an analogous hexagonal crystal structure with an a-axis length of 8.73±1 ? and a c-axis length of 14.86±1 ?. The manganese oxide particle is preferably produced by a process including mixing an aqueous solution containing manganese (II) and an organic compound having a hydroxyl group while in a heated state with an alkali.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: May 10, 2016
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Mami Yoshida, Kenji Suzuoka, Kazuhiko Kato, Yasunori Tabira, Isamu Yashima
  • Patent number: 9269472
    Abstract: Fluorine-doped tin oxide particles having a structure characterized by peaks at at least 123±5 cm?1, 139±5 cm?1, and 170±5 cm?1 in Raman spectroscopy. The particles preferably have additional Raman spectral peaks at 78±5 cm?1, 97±5 cm?1, 109±5 cm?1, 186±5 cm?1, and 207±5 cm?1. The particles preferably have a specific surface area of 10 to 300 m2/g.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: February 23, 2016
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Satoshi Mogi, Kazuhiko Kato, Kenji Suzuoka, Yasunori Tabira, Isamu Yashima
  • Patent number: 8916070
    Abstract: A tin oxide particle having a structure characterized by peaks in Raman spectroscopy at at least 37±9 cm?1, 57±9 cm?1, 97±9 cm?1, 142±9 cm?1, 205±9 cm?1, 255±9 cm?1. The tin oxide particle preferably has an infrared transmittance of 80% or less at a wavelength of 1500 nm. The tin oxide particle preferably exhibits electroconductivity. The tin oxide particle is preferably substantially free from a dopant element that develops electroconductivity.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: December 23, 2014
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Kazuhiko Kato, Kenji Suzuoka, Yasunori Tabira, Isamu Yashima
  • Publication number: 20140093734
    Abstract: Fluorine-doped tin oxide particles having a structure characterized by peaks at at least 123±5 cm?1, 139±5 cm?1, and 170±5 cm?1 in Raman spectroscopy. The particles preferably have additional Raman spectral peaks at 78±5 cm?1, 97±5 cm?1, 109±5 cm?1, 186±5 cm?1, and 207±5 cm?1. The particles preferably have a specific surface area of 10 to 300 m2/g.
    Type: Application
    Filed: March 6, 2012
    Publication date: April 3, 2014
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Satoshi Mogi, Kazuhiko Kato, Kenji Suzuoka, Yasunori Tabira, Isamu Yashima
  • Publication number: 20140004026
    Abstract: Provided is a particulate combustion catalyst including a carrier formed of monoclinic zirconium oxide particles, and metallic Ag or Ag oxide, which serves as a catalyst component and is supported on the carrier, wherein the amount of the catalyst component is 0.5 to 10 mass %, as reduced to metallic Ag, on the basis of the mass of the carrier, and preferably, the catalyst has a BET specific surface area of 8 to 21 m2/g. Also provided are a particulate filter coated with the particulate combustion catalyst; and an exhaust gas cleaning apparatus including a particulate filter coated with the particulate combustion catalyst.
    Type: Application
    Filed: September 3, 2013
    Publication date: January 2, 2014
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Takahito ASANUMA, Hiromitsu TAKAGI, Isamu YASHIMA, Akira ABE
  • Publication number: 20130344336
    Abstract: A chlorine-doped tin oxide particle exhibits peaks at at least 108±5 cm?1, 122±5 cm?1, and 133±5 cm?1 in Raman spectroscopy. The chlorine-doped tin oxide particle preferably has an additional Raman spectral peak at 337±10 cm?1. The chlorine-doped tin oxide particle preferably has a specific surface area of 10 to 300 m2/g. The chlorine-doped tin oxide particle preferably has an average primary particle size of 3 to 200 nm. The chlorine-doped tin oxide particle is preferably substantially free of oxygen deficiency.
    Type: Application
    Filed: March 1, 2012
    Publication date: December 26, 2013
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Satoshi Mogi, Kazuhiko Kato, Kenji Suzuoka, Yasunori Tabira, Isamu Yashima
  • Publication number: 20130256607
    Abstract: A tin oxide particle having a structure characterized by peaks in Raman spectroscopy at at least 37±9 cm?1, 57±9 cm?1, 97±9 cm?1, 142±9 cm?1, 205±9 cm?1, 255±9 cm?1. The tin oxide particle preferably has an infrared transmittance of 80% or less at a wavelength of 1500 nm. The tin oxide particle preferably exhibits electroconductivity. The tin oxide particle is preferably substantially free from a dopant element that develops electroconductivity.
    Type: Application
    Filed: January 10, 2012
    Publication date: October 3, 2013
    Applicant: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Kazuhiko Kato, Kenji Suzuoka, Yasunori Tabira, Isamu Yashima
  • Publication number: 20130202521
    Abstract: A manganese oxide particle having a hexagonal crystal structure or an analogous hexagonal crystal structure with an a-axis length of 8.73±1 ? and a c-axis length of 14.86±1 ?. The manganese oxide particle is preferably produced by a process including mixing an aqueous solution containing manganese (II) and an organic compound having a hydroxyl group while in a heated state with an alkali.
    Type: Application
    Filed: July 8, 2011
    Publication date: August 8, 2013
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Mami Yoshida, Kenji Suzuoka, Kazuhiko Kato, Yasunori Tabira, Isamu Yashima
  • Patent number: 8491822
    Abstract: A tin oxide particle having at least two diffraction peaks at 2? (deg) of 9±1° and 28±1° in XRD measurement by Cu/K? radiation. The tin oxide particle preferably shows diffraction peaks at 2? (deg) of 19±1°, 48±1°, and 59±1°. The tin oxide particle preferably has electroconductivity. The tin oxide particle is preferably produced by mixing an aqueous solution containing tin (II) and a hydroxyl-containing organic compound in a heated condition with an alkali.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: July 23, 2013
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Kazuhiko Kato, Akihiro Modeki, Kenji Suzuoka, Yasunori Tabira, Isamu Yashima
  • Patent number: 8435336
    Abstract: A deoxidizer includes a porous body of fluorite-type cerium oxide represented by CeOx (where x is a positive number smaller than 2) and having a reversible oxygen deficiency. The deoxidizer has a specific surface area of 0.6 to 1.8 m2/g and a pore median diameter of 1.6 to 5.3 ?m. The cerium oxide used for the deoxidizer is produced by: firing a cerium-containing salt in the atmosphere at 500° C. to 1400° C. for 1 to 20 hours, to produce fluorite-type cerium oxide composed of a porous body; and firing the cerium oxide at 700° C. to 1100° C. for 1 to 3 hours in a reducing atmosphere having a hydrogen concentration equal to or above the lower explosive limit, to remove oxygen from the cerium oxide and produce the fluorite-type cerium oxide represented by CeOx and having a reversible oxygen deficiency.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: May 7, 2013
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Kazuya Kinoshita, Yuichi Senoo, Yousuke Shibata, Isamu Yashima
  • Patent number: 8328915
    Abstract: A dehumidifying deoxidizer containing oxygen-deficient cerium oxide and a dehumidifier is provided. The oxygen-deficient cerium oxide is preferably doped with an element increasing the oxygen absorption of the cerium oxide. The oxygen absorption sites of the cerium oxide are preferably obstructed by a site obstructing factor. The cerium oxide preferably has a fluorite type superlattice structure. Also provided are a dehumidifying and deoxidizing packet having the dehumidifying deoxidizer sealed in a bag-shaped, gas permeable casing and a dehumidifying and deoxidizing resin composition containing the dehumidifying deoxidizer and a gas permeable resin.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: December 11, 2012
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yuichi Senoo, Kazuya Kinoshita, Isamu Yashima
  • Publication number: 20120085979
    Abstract: A tin oxide particle having at least two diffraction peaks at 2? (deg) of 9±1° and 28±1° in XRD measurement by Cu/K? radiation. The tin oxide particle preferably shows diffraction peaks at 2? (deg) of 19±1°, 48±1°, and 59±1°. The tin oxide particle preferably has electroconductivity. The tin oxide particle is preferably produced by mixing an aqueous solution containing tin (II) and a hydroxyl-containing organic compound in a heated condition with an alkali.
    Type: Application
    Filed: July 20, 2010
    Publication date: April 12, 2012
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Kazuhiko Kato, Akihiro Modeki, Kenji Suzuoka, Yasunori Tabira, Isamu Yashima
  • Patent number: 7988945
    Abstract: An object of the present invention is to provide a niobium monoxide able to realize large capacitance in a miniature sized capacitor. The invention relates to a niobium monoxide having a porous structure comprising particles, characterized in that the niobium monoxide has a full-width at half maximum of an X-ray diffraction peak corresponding to a (111) plane or an X-ray diffraction peak corresponding to a (200) plane of 0.21° to 1.0°. The niobium monoxide has a large specific surface area and porosity, and is especially suitable for use in a capacitor.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: August 2, 2011
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yoshihiro Yoneda, Shuji Ogura, Isamu Yashima
  • Publication number: 20110086757
    Abstract: A deoxidizer includes a porous body of fluorite-type cerium oxide represented by CeOx (where x is a positive number smaller than 2) and having a reversible oxygen deficiency. The deoxidizer has a specific surface area of 0.6 to 1.8 m2/g and a pore median diameter of 1.6 to 5.3 ?m. The cerium oxide used for the deoxidizer is produced by: firing a cerium-containing salt in the atmosphere at 500° C. to 1400° C. for 1 to 20 hours, to produce fluorite-type cerium oxide composed of a porous body; and firing the cerium oxide at 700° C. to 1100° C. for 1 to 3 hours in a reducing atmosphere having a hydrogen concentration equal to or above the lower explosive limit, to remove oxygen from the cerium oxide and produce the fluorite-type cerium oxide represented by CeOx and having a reversible oxygen deficiency.
    Type: Application
    Filed: July 6, 2009
    Publication date: April 14, 2011
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Kazuya Kinoshita, Yuichi Senoo, Yousuke Shibata, Isamu Yashima
  • Publication number: 20110076202
    Abstract: Provided is a particulate combustion catalyst including a carrier formed of monoclinic zirconium oxide particles, and metallic Ag or Ag oxide, which serves as a catalyst component and is supported on the carrier, wherein the amount of the catalyst component is 0.5 to 10 mass %, as reduced to metallic Ag, on the basis of the mass of the carrier, and preferably, the catalyst has a BET specific surface area of 8 to 21 m2/g. Also provided are a particulate filter coated with the particulate combustion catalyst; and an exhaust gas cleaning apparatus including a particulate filter coated with the particulate combustion catalyst.
    Type: Application
    Filed: October 23, 2008
    Publication date: March 31, 2011
    Applicant: MITSUI MINING & SMELTING CO., LTD
    Inventors: Takahito Asanuma, Hiromitsu Takagi, Isamu Yashima, Akira Abe
  • Publication number: 20100267545
    Abstract: An object of the present invention is to provide a niobium monoxide able to realize large capacitance in a miniature sized capacitor. The invention relates to a niobium monoxide having a porous structure comprising particles, characterized in that the niobium monoxide has a full-width at half maximum of an X-ray diffraction peak corresponding to a (111) plane or an X-ray diffraction peak corresponding to a (200) plane of 0.21° to 1.0°. The niobium monoxide has a large specific surface area and porosity, and is especially suitable for use in a capacitor.
    Type: Application
    Filed: June 26, 2007
    Publication date: October 21, 2010
    Inventors: Yoshihiro Yoneda, Shuji Ogura, Isamu Yashima
  • Publication number: 20090246556
    Abstract: A dehumidifying deoxidizer containing oxygen-deficient cerium oxide and a dehumidifier is provided. The oxygen-deficient cerium oxide is preferably doped with an element increasing the oxygen absorption of the cerium oxide. The oxygen absorption sites of the cerium oxide are preferably obstructed by a site obstructing factor. The cerium oxide preferably has a fluorite type superlattice structure. Also provided are a dehumidifying and deoxidizing packet having the dehumidifying deoxidizer sealed in a bag-shaped, gas permeable casing and a dehumidifying and deoxidizing resin composition containing the dehumidifying deoxidizer and a gas permeable resin.
    Type: Application
    Filed: June 26, 2007
    Publication date: October 1, 2009
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Yuichi Senoo, Kazuya Kinoshita, Isamu Yashima