Patents by Inventor Yoshikazu Shibasaki
Yoshikazu Shibasaki 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: 10697912Abstract: Provided are a gas detection method and a gas detector which have a high durability to silicone poisoning and is capable of detecting the type and the concentration of a target gas to be detected with certain accuracy even when the detector is used in an environment where a silicone compound exists. The gas detector employs a contact combustion-type gas sensor which includes two gas detection elements, each intermittently driven, and in which only one gas detection element is supplied with a gas through a silicone removal filter. Acquired in an energization duration of each of the gas detection elements are two or more pieces of output data by the one gas detection element and two or more pieces of output data by the other gas detection element, which constitutes output variation patterns for a test gas.Type: GrantFiled: July 16, 2018Date of Patent: June 30, 2020Assignee: RIKEN KEIKI CO., LTD.Inventors: Yuki Tanaka, Ryuji Asada, Yoshikazu Shibasaki, Shunsuke Takahashi
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Patent number: 10697920Abstract: Disclosed is a gas sensor having high detection sensitivity, capable of detecting a gas at a low concentration and achieving lower power consumption. In the gas sensor including a gas detection element disposed on a thin-film insulator layer, the gas detection element includes: a heater layer provided on the thin-film insulator layer; and a gas detection layer having a thin-film thermistor part and an electrode part in contact with the thin-film, thermistor part, the gas detection layer being provided on the heater layer so as to be electrically insulated from the heater layer. The gas sensor is configured to detect a temperature change due to contact of a gas with the gas detection element on the basis of a change in resistance value in the thin-film thermistor part. The thin-film thermistor part preferably comprises a composite metal oxide containing Fe2O3, TiO2 and MgO.Type: GrantFiled: October 4, 2017Date of Patent: June 30, 2020Assignee: RIKEN KEIKI CO., LTD.Inventors: Yoshikazu Shibasaki, Hirotaka Obata
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Publication number: 20190025233Abstract: Provided are a gas detection method and a gas detector which have a high durability to silicone poisoning and is capable of detecting the type and the concentration of a target gas to be detected with certain accuracy even when the detector is used in an environment where a silicone compound exists. The gas detector employs a contact combustion-type gas sensor which includes two gas detection elements, each intermittently driven, and in which only one gas detection element is supplied with a gas through a silicone removal filter. Acquired in an energization duration of each of the gas detection elements are two or more pieces of output data by the one gas detection element and two or more pieces of output data by the other gas detection element, which constitutes output variation patterns for a test gas.Type: ApplicationFiled: July 16, 2018Publication date: January 24, 2019Inventors: Yuki Tanaka, Ryuji Asada, Yoshikazu Shibasaki, Shunsuke Takahashi
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Publication number: 20190025270Abstract: Provided is a gas detector which has a high durability to silicone poisoning and of which power consumption is reduced. The gas detector includes a contact combustion-type gas sensor and detects a paraffinic hydrocarbon gas, a solvent gas, and a hydrogen gas. The contact combustion-type gas sensor is configured to include two gas detection elements that are disposed in two detection chambers partitioned from each other, respectively, and the gas inlet of one detection chamber is provided with a silicone removal filter. The paraffinic hydrocarbon gas is detected by one gas detection element disposed in the one detection chamber which is provided with the silicone removal filter. Furthermore, the solvent gas is detected by the other gas detection element which is disposed in the other detection chamber. Still furthermore, the hydrogen gas is detected by either the one gas detection element or the other gas detection element.Type: ApplicationFiled: July 16, 2018Publication date: January 24, 2019Inventors: Yuki TANAKA, Ryuji ASADA, Yoshikazu SHIBASAKI, Kei ONO
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Publication number: 20180106745Abstract: Disclosed is a gas sensor having high detection sensitivity, capable of detecting a gas at a low concentration and achieving lower power consumption. In the gas sensor including a gas detection element disposed on a thin-film insulator layer, the gas detection element includes: a heater layer provided on the thin-film insulator layer; and a gas detection layer having a thin-film thermistor part and an electrode part in contact with the thin-film, thermistor part, the gas detection layer being provided on the heater layer so as to be electrically insulated from the heater layer. The gas sensor is configured to detect a temperature change due to contact of a gas with the gas detection element on the basis of a change in resistance value in the thin-film thermistor part. The thin-film thermistor part preferably comprises a composite metal oxide containing Fe2O3, TiO2 and MgO.Type: ApplicationFiled: October 4, 2017Publication date: April 19, 2018Inventors: Yoshikazu Shibasaki, Hirotaka Obata
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Publication number: 20150328343Abstract: Provided is a contrast medium comprising at least one molecular probe and at least one optical probe on a surface of a substrate having an ultrasound imaging function. More specifically, a contrast medium having sensitivity to not only ultrasound but also light excellent in real-time imaging and resolution and having a size sufficient to travel into tissues through blood vessel can be provided by labelling an ultrasound imageable substrate with a molecular probe and an optical probe.Type: ApplicationFiled: July 29, 2015Publication date: November 19, 2015Applicants: THE UNIVERSITY OF TOKYO, OLYMPUS CORPORATIONInventors: Miyuki Murakami, Satoshi Yamaguchi, Teruyuki Nagamune, Mariko Iijima, Yoshikazu Shibasaki
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Patent number: 8309574Abstract: A nuclear transfer promoter for Rac protein comprising an isoprenoid synthesis inhibitor and/or a geranylgeranyl transferase inhibitor such as an HMG-CoA synthase inhibitor, an HMG-CoA reductase inhibitor, an AMPK activator or a farnesyl pyrophosphoric acid synthase preparation; utilization thereof; a method therefor; a blood vessel remedy comprising the nuclear transfer promoter for Rac protein as the active ingredient; and a method of screening a blood vessel remedy which comprises assaying the ability of Rac protein to transfer into nucleus.Type: GrantFiled: February 24, 2005Date of Patent: November 13, 2012Assignees: Kowa Company, Ltd., Nissan Chemical Industries, Ltd.Inventors: Takahide Kohro, Yoshikazu Shibasaki, Takao Hamakubo, Tatsuhiko Kodama
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Patent number: 8252524Abstract: A nuclear transfer promoter for Cdc42 protein comprising an isoprenoid synthesis inhibitor and/or a geranylgeranyl transferase inhibitor such as an HMG-CoA synthase inhibitor, an HMG-CoA reductase inhibitor, an AMPK activator or a farnesyl pyrophosphoric acid synthase preparation; utilization thereof; a method therefor; a blood vessel remedy comprising the nuclear transfer promoter for Cdc42 protein as the active ingredient; and a method of screening a blood vessel remedy which comprises assaying the ability of Cdc42 protein to transfer into nucleus.Type: GrantFiled: August 26, 2009Date of Patent: August 28, 2012Assignees: Kowa Company, Ltd., Nissan Chemical Industries, Ltd.Inventors: Takahide Kohro, Yoshikazu Shibasaki, Takao Hamakubo, Tatsuhiko Kodama
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Publication number: 20100221766Abstract: A nuclear transfer promoter for Cdc42 protein comprising an isoprenoid synthesis inhibitor and/or a geranylgeranyl transferase inhibitor such as an HMG-CoA synthase inhibitor, an HMG-CoA reductase inhibitor, an AMPK activator or a farnesyl pyrophosphoric acid synthase preparation; utilization thereof; a method therefor; a blood vessel remedy comprising the nuclear transfer promoter for Cdc42 protein as the active ingredient; and a method of screening a blood vessel remedy which comprises assaying the ability of Cdc42 protein to transfer into nucleus.Type: ApplicationFiled: August 26, 2009Publication date: September 2, 2010Applicants: KOWA COMPANY, LTD., NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Takahide KOHRO, Yoshikazu SHIBASAKI, Takao HAMAKUBO, Tatsuhiko KODAMA
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Patent number: 7526942Abstract: A contact combustion-type gas sensor that can maintain its initial sensitivity over a long period of time in the presence of silicon vapor, wherein an induction portion 5 of a gas detecting element 1 contains not less than 30 percent by weight of an oxidation catalyst, and is aged in advance in an environment that contains silicon vapor serving as a poisoning substance.Type: GrantFiled: June 4, 2004Date of Patent: May 5, 2009Assignee: Riken Keiki Co., Ltd.Inventors: Seiichi Otani, Mamoru Furusato, Yoshikazu Shibasaki, Shoei Yasuda
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Publication number: 20070293535Abstract: A nuclear transfer promoter for Cdc42 protein comprising an isoprenoid synthesis inhibitor and/or a geranylgeranyl transferase inhibitor such as an HMG-CoA synthase inhibitor, an HMG-CoA reductase inhibitor, an AMPK activator or a farnesyl pyrophosphoric acid synthase preparation; utilization thereof; a method therefor; a blood vessel remedy comprising the nuclear transfer promoter for Cdc42 protein as the active ingredient; and a method of screening a blood vessel remedy which comprises assaying the ability of Cdc42 protein to transfer into nucleus.Type: ApplicationFiled: February 24, 2005Publication date: December 20, 2007Applicants: KOWA COMPANY, LTD., NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Takahide Kohro, Yoshikazu Shibasaki, Takao Hamakubo, Tatsuhiko Kodama
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Publication number: 20070281967Abstract: A nuclear transfer promoter for Rac protein comprising an isoprenoid synthesis inhibitor and/or a geranylgeranyl transferase inhibitor such as an HMG-CoA synthase inhibitor, an HMG-CoA reductase inhibitor, an AMPK activator or a farnesyl pyrophosphoric acid synthase preparation; utilization thereof; a method therefor; a blood vessel remedy comprising the nuclear transfer promoter for Rac protein as the active ingredient; and a method of screening a blood vessel remedy which comprises assaying the ability of Rac protein to transfer into nucleus.Type: ApplicationFiled: February 24, 2005Publication date: December 6, 2007Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Takahide Kohro, Yoshikazu Shibasaki, Takao Hamakubo, Tatsuhiko Kodama