Patents by Inventor Nario Sugahara

Nario Sugahara 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: 11648537
    Abstract: A supported catalyst for decomposing an organic substance that includes a carrier and catalyst particles supported on the carrier. The catalyst particles contain a perovskite-type composite oxide represented by AxByMzOw, where A contains at least one of Ba and Sr, B contains Zr, M is at least one of Mn, Co, Ni, and Fe, y+z=1, x>1, z<0.4, and w is a positive value that satisfies electrical neutrality. An organic substance decomposition rate after the supported catalyst is subjected to a heat treatment at 950° C. for 48 hours is greater than 0.97 when the organic substance decomposition rate before the heat treatment is regarded as 1, and an amount of the catalyst particles peeled off when the supported catalyst is ultrasonicated in water at 28 kHz and 220 W for 15 minutes is less than 1 wt % of the catalyst particles before untrasonication.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: May 16, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Satoshi Kuretake, Nario Sugahara, Kentaro Ishihara
  • Patent number: 11642661
    Abstract: A supported catalyst for decomposing an organic substance that includes a support and a catalyst particle supported on the support. The catalyst particle contains a perovskite-type composite oxide represented by AxByMzOw, where the A contains at least one selected from Ba and Sr, the B contains Zr, the M is at least one selected from Mn, Co, Ni and Fe, y+z=1, x?0.995, z?0.4, and w is a positive value satisfying electrical neutrality. A film thickness of a catalyst-supporting film supported on the support and containing the catalyst particle is 5 ?m or more, or a supported amount as determined by normalizing a mass of the catalyst particle supported on the support by a volume of the support is 45 g/L or more.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: May 9, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Satoshi Kuretake, Kentaro Ishihara, Nario Sugahara
  • Patent number: 11571683
    Abstract: A honeycomb-structured catalyst for decomposing an organic substance, which includes a catalyst particle. The catalyst particle contains a perovskite-type composite oxide represented by AxByMzOw, where the A contains at least of Ba and Sr, the B contains Zr, the M is at least one of Mn, Co, Ni, and Fe, y+z=1, 1.001?x?1.05, 0.05?z?0.2, and w is a positive value that satisfies electrical neutrality. The toluene decomposition rate is greater than 90% when toluene is decomposed using the honeycomb-structured catalyst subjected to a heat treatment at 1200° C. for 48 hours and a gas that contains 50 ppm toluene, 80% nitrogen, and 20% oxygen as a volume concentration as a target at a space velocity of 30,000/h and a catalyst temperature of 400° C.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: February 7, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Naoya Mori, Satoshi Kuretake, Nario Sugahara, Kentaro Ishihara
  • Patent number: 11529613
    Abstract: An organic matter decomposition catalyst that contains a perovskite type complex oxide represented by AxByMzOw, wherein A contains 90 at % or more of at least one element selected from the group consisting of Ba and Sr, B contains 80 at % or more of Zr, M is at least one element selected from the group consisting of Mn, Co, Ni, and Fe, y+z=1, x>1, z<0.4, and w is a positive value that satisfies electrical neutrality.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: December 20, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Nario Sugahara, Kentaro Ishihara, Satoshi Kuretake
  • Patent number: 11383226
    Abstract: A catalyst for decomposing an organic substance, the catalyst having a body which has a plurality of pores and the body contains a perovskite-type composite oxide represented by AxByMzOw, where the A contains at least one selected from Ba and Sr, the B contains Zr, the M is at least one selected from Mn, Co, Ni, and Fe, 1.001?x?1.1, 0.05?z?0.2, y+z=1, and w is a positive value that satisfies electrical neutrality. The average pore diameter of the plurality of pores is 49 nm to 260 nm and the pore volume of each of the plurality of pores is 0.08 cm3/g to 0.37 cm3/g.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: July 12, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kentaro Ishihara, Nario Sugahara, Satoshi Kuretake, Naoya Mori, Hideto Sato
  • Publication number: 20220105497
    Abstract: An organic substance decomposition catalyst that contains a perovskite-type complex oxide denoted by a formula AxByMzOw, where A includes Ba, B includes Zr, M represents Mn and Co, a composition ratio of Mn to Co is represented by Mn:Co=z1:z2, z=z1+z2, y+z=1.000, 0.100?z1+z2?0.200, 0.00<z1/(z1+z2)<0.75, and w represents a positive value satisfying electrical neutrality.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 7, 2022
    Inventors: Nario SUGAHARA, Kentaro ISHIHARA, Akihiro TAKEUCHI, Hideto SATO
  • Publication number: 20220080391
    Abstract: An organic material decomposition catalyst that contains BaCO3 and a perovskite composite oxide represented by AxByMzOw, wherein A contains Ba, B contains Zr, and M denotes Mn. A peak intensity I(BaCO3(111)) of BaCO3(111) of the BaCO3 and a peak intensity I(BaZrO3(110)) of a perovskite composite oxide AxByMzOw(110) of the perovskite composite oxide represented by AxByMzOw, each determined by X-ray diffractometry of the organic material decomposition catalyst, have a ratio I(BaCO3(111))/I(BaZrO3(110)) in a range of 0.022 to 0.052. In another aspect, in the perovskite composite oxide represented by AxByMzOw, 1.01?x?1.06, 0.1?z?0.125, and y+z=1 are satisfied, w denotes a positive value that satisfies electroneutrality, and the organic material decomposition catalyst has a specific surface area in the range of 12.3 to 16.9 m2/g.
    Type: Application
    Filed: November 30, 2021
    Publication date: March 17, 2022
    Inventors: Nario Sugahara, Kentaro Ishihara, Hideto Sato
  • Publication number: 20210053030
    Abstract: A supported catalyst for decomposing an organic substance that includes a support and a catalyst particle supported on the support. The catalyst particle contains a perovskite-type composite oxide represented by AxByMzOw, where the A contains at least one selected from Ba and Sr, the B contains Zr, the M is at least one selected from Mn, Co, Ni and Fe, y+z=1, x?0.995, z?0.4, and w is a positive value satisfying electrical neutrality. A film thickness of a catalyst-supporting film supported on the support and containing the catalyst particle is 5 ?m or more, or a supported amount as determined by normalizing a mass of the catalyst particle supported on the support by a volume of the support is 45 g/L or more.
    Type: Application
    Filed: November 10, 2020
    Publication date: February 25, 2021
    Inventors: Satoshi Kuretake, Kentaro Ishihara, Nario Sugahara
  • Publication number: 20210016259
    Abstract: A supported catalyst for decomposing an organic substance that includes a carrier and catalyst particles supported on the carrier. The catalyst particles contain a perovskite-type composite oxide represented by AxByMzOw, where A contains at least one of Ba and Sr, B contains Zr, M is at least one of Mn, Co, Ni, and Fe, y+z=1, x>1, z<0.4, and w is a positive value that satisfies electrical neutrality. An organic substance decomposition rate after the supported catalyst is subjected to a heat treatment at 950° C. for 48 hours is greater than 0.97 when the organic substance decomposition rate before the heat treatment is regarded as 1, and an amount of the catalyst particles peeled off when the supported catalyst is ultrasonicated in water at 28 kHz and 220 W for 15 minutes is less than 1 wt % of the catalyst particles before untrasonication.
    Type: Application
    Filed: October 6, 2020
    Publication date: January 21, 2021
    Inventors: Satoshi Kuretake, Nario Sugahara, Kentaro Ishihara
  • Publication number: 20200406236
    Abstract: A catalyst for decomposing an organic substance, the catalyst having a body which has a plurality of pores and the body contains a perovskite-type composite oxide represented by AxByMzOw, where the A contains at least one selected from Ba and Sr, the B contains Zr, the M is at least one selected from Mn, Co, Ni, and Fe, 1.001?x?1.1, 0.05?z?0.2, y+z=1, and w is a positive value that satisfies electrical neutrality. The average pore diameter of the plurality of pores is 49 nm to 260 nm and the pore volume of each of the plurality of pores is 0.08 cm3/g to 0.37 cm3/g.
    Type: Application
    Filed: September 11, 2020
    Publication date: December 31, 2020
    Inventors: Kentaro Ishihara, Nario Sugahara, Satoshi Kuretake, Naoya Mori, Hideto Sato
  • Publication number: 20200406245
    Abstract: A honeycomb-structured catalyst for decomposing an organic substance, which includes a catalyst particle. The catalyst particle contains a perovskite-type composite oxide represented by AxByMzOw, where the A contains at least of Ba and Sr, the B contains Zr, the M is at least one of Mn, Co, Ni, and Fe, y+z=1, 1.001?x?1.05, 0.05?z?0.2, and w is a positive value that satisfies electrical neutrality. The toluene decomposition rate is greater than 90% when toluene is decomposed using the honeycomb-structured catalyst subjected to a heat treatment at 1200° C. for 48 hours and a gas that contains 50 ppm toluene, 80% nitrogen, and 20% oxygen as a volume concentration as a target at a space velocity of 30,000/h and a catalyst temperature of 400° C.
    Type: Application
    Filed: September 11, 2020
    Publication date: December 31, 2020
    Inventors: Naoya Mori, Satoshi Kuretake, Nario Sugahara, Kentaro Ishihara
  • Publication number: 20200070130
    Abstract: An organic matter decomposition catalyst that contains a perovskite type complex oxide represented by AxByMzOw, wherein A contains 90 at % or more of at least one element selected from the group consisting of Ba and Sr, B contains 80 at % or more of Zr, M is at least one element selected from the group consisting of Mn, Co, Ni, and Fe, y+z=1, x>1, z<0.4, and w is a positive value that satisfies electrical neutrality.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 5, 2020
    Inventors: Nario Sugahara, Kentaro Ishihara, Satoshi Kuretake