Patents by Inventor Youhei Jikihara
Youhei Jikihara 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: 20230330637Abstract: [Problem] The purpose of the present invention is to provide a deodorizing catalyst that can decompose a malodorous substance even at a low temperature of 100° C. or less. [Solution] A deodorizing catalyst for decomposing a malodorous substance, comprising: manganese oxide wherein the manganese oxide satisfies the following expression (1) and the following expression (2), and the manganese oxide has a maximum intensity peak at a diffraction angle (2?) of 37±1° in an X-ray diffraction pattern: 0<A?0.90 . . . ??(1) 0<B?250 . . .Type: ApplicationFiled: September 2, 2021Publication date: October 19, 2023Applicants: NBC MESHTEC INC., TOKYO METROPOLITAN PUBLIC UNIVERSITY CORPORATION, THE UNIVERSITY OF TOKYOInventors: Yoko FUKUI, Youhei JIKIHARA, Toru MURAYAMA, Tetsuya SHISHIDO, Takashi TAKEI, Mingyue LIN, Haifeng WANG, Kazuya YAMAGUCHI
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Patent number: 11434218Abstract: [PROBLEM] To provide a novel method for synthesising a polyphenol. [SOLUTION] A polyphenol production method including the reaction of catechin in the presence of a catalyst and an oxidising agent, said catalyst comprising a metal oxide and/or a composite that comprises: a substrate which has an inorganic material on the surface thereof; and metal nanoparticles of a particle diameter of 0.5-100 nm attached to the surface of the inorganic material.Type: GrantFiled: August 24, 2018Date of Patent: September 6, 2022Assignee: NBC MESHTEC INC.Inventors: Erika Takahashi, Yoshie Fujimori, Youhei Jikihara, Tsuruo Nakayama
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Patent number: 10744351Abstract: A mask is provided that can inactivate viruses adhering thereto even in the presence of lipids and proteins regardless of whether or not the viruses have an envelope. The mask can inactivate viruses adhering thereto and includes a mask body provided with a member used when the mask is worn and virus inactivating fine particles having a virus inactivating ability and held by the mask body. The virus inactivating fine particles are particles of at least one selected from the group consisting of platinum(II) iodide, palladium(II) iodide, silver(I) iodide, copper(I) iodide, and copper(I) thiocyanate.Type: GrantFiled: September 30, 2010Date of Patent: August 18, 2020Assignee: NBC MESHTEC, INC.Inventors: Yoshie Fujimori, Youhei Jikihara, Tetsuya Sato, Yoko Fukui, Tsuruo Nakayama
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Publication number: 20200231560Abstract: [PROBLEM] To provide a novel method for synthesising a polyphenol. [SOLUTION] A polyphenol production method including the reaction of catechin in the presence of a catalyst and an oxidising agent, said catalyst comprising a metal oxide and/or a composite that comprises: a substrate which has an inorganic material on the surface thereof; and metal nanoparticles of a particle diameter of 0.5-100 nm attached to the surface of the inorganic material.Type: ApplicationFiled: August 24, 2018Publication date: July 23, 2020Applicant: NBC MESHTEC INC.Inventors: Erika TAKAHASHI, Yoshie FUJIMORI, Youhei JIKIHARA, Tsuruo NAKAYAMA
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Patent number: 9962651Abstract: A gas treatment device includes a plasma-generating unit and a catalyst medium. The plasma-generating unit is provided with at least a flow channel through which a gas to be treated flows; and a power-supply unit for supplying electrical power, a first electrode, a second electrode and a dielectric material arranged inside the flow channel. A voltage is impressed between the first electrode and the second electrode by the power-supply unit and electrical discharging is caused to occur, whereby plasma is generated. The catalyst medium is adapted for accelerating a reaction with the gas to be treated and is provided in a position where the plasma generated by the plasma-generating unit inside the flow channel is present, and the catalyst medium has metallic catalytic particles present on an inorganic substance.Type: GrantFiled: September 4, 2012Date of Patent: May 8, 2018Assignee: NBC MESHTEC, INC.Inventors: Makoto Ikegami, Takanori Matsumoto, Tsuruo Nakayama, Youhei Jikihara
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Patent number: 9155309Abstract: A virus inactivating sheet is provided that can inactivate viruses adhering thereto even in the presence of lipids and proteins regardless of whether or not the viruses have an envelope. The virus inactivating sheet can inactivate viruses adhering thereto and includes a sheet body, and monovalent copper compound fine particles and/or iodide fine particles that are held by the sheet body. The virus inactivating sheet can inactivate various viruses. These viruses can be inactivated even in the presence of lipids and proteins.Type: GrantFiled: October 4, 2010Date of Patent: October 13, 2015Assignee: NBC MESHTEC, INC.Inventors: Yoshie Fujimori, Youhei Jikihara, Tetsuya Sato, Yoko Fukui, Tsuruo Nakayama
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Publication number: 20140219894Abstract: To provide a device and a method for oxidation decomposition treatment of a hazardous gas of a volatile organic compound (VOC) or the like at normal temperature. A gas treatment device characterized in being provided with a plasma-generating unit and a catalyst medium. The plasma-generating unit is provided with at least a flow channel through which a gas to be treated flows; and a power-supply unit for supplying electrical power, a first electrode, a second electrode and a dielectric material arranged inside the flow channel. A voltage is impressed between the first electrode and the second electrode by the power-supply unit and electrical discharging is caused to occur, whereby plasma is generated. The catalyst medium is adapted for accelerating a reaction with the gas to be treated and is provided in a position where the plasma generated by the plasma-generating unit inside the flow channel is present, wherein the catalyst medium has metallic catalytic particles present on an inorganic substance.Type: ApplicationFiled: September 4, 2012Publication date: August 7, 2014Inventors: Makoto Ikegami, Takanori Matsumoto, Tsuruo Nakayama, Youhei Jikihara
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Publication number: 20120192876Abstract: A mask is provided that can inactivate viruses adhering thereto even in the presence of lipids and proteins regardless of whether or not the viruses have an envelope. The mask can inactivate viruses adhering thereto and includes a mask body provided with a member used when the mask is worn and virus inactivating fine particles having a virus inactivating ability and held by the mask body. The virus inactivating fine particles are particles of at least one selected from the group consisting of platinum(II) iodide, palladium(II) iodide, silver(I) iodide, copper(I) iodide, and copper(I) thiocyanate.Type: ApplicationFiled: September 30, 2010Publication date: August 2, 2012Inventors: Yoshie Fujimori, Youhei Jikihara, Tetsuya Sato, Yoko Fukui, Tsuruo Nakayama
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Publication number: 20120171276Abstract: A virus inactivating sheet is provided that can inactivate viruses adhering thereto even in the presence of lipids and proteins regardless of whether or not the viruses have an envelope. The virus inactivating sheet can inactivate viruses adhering thereto and includes a sheet body, and monovalent copper compound fine particles and/or iodide fine particles that are held by the sheet body. The virus inactivating sheet can inactivate various viruses. These viruses can be inactivated even in the presence of lipids and proteins.Type: ApplicationFiled: October 4, 2010Publication date: July 5, 2012Inventors: Yoshie Fujimori, Youhei Jikihara, Tetsuya Sato, Yoko Fukui, Tsuruo Nakayama