Patents by Inventor Kazuma Mawatari
Kazuma Mawatari 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: 20230347336Abstract: A container for concentration includes a supplying region in which a swirling flow of a gas is supplied to a solution in the container for concentration, and an avoidance region that is situated below the supplying region and in which supplying of the swirling flow to the solution is avoided.Type: ApplicationFiled: April 24, 2023Publication date: November 2, 2023Inventors: Kazuma MAWATARI, Kazumasa KINOSHITA, Takao NISHIGUCHI, Haruo SHIMADA
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Patent number: 10756372Abstract: A first proton-donating layer (20a) is a layer having a proton-donative functional group on the surface, for example, a silicon oxide layer. A second proton-donating layer (20b) is also a layer having a proton-donative functional group on the surface, for example, a silicon oxide layer. Negative surface charges are formed on the main surface section of a first base (10a) and the main surface section of a second base (10b), and these negative charges increased the proton conductivity in an aqueous solution fed to a nano channel. Although, in the aqueous solution, proton migration through hopping between water molecules contributes to its diffusion, the negative charges formed on the main surfaces of the bases (10a, 10b) attract protons in the aqueous solution, and the conduction of protons is efficiently achieved in “high-speed transfer regions” formed in the vicinity of the proton-donating layers (20a, 20b).Type: GrantFiled: October 21, 2015Date of Patent: August 25, 2020Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Yutaka Kazoe, Yuriy Pihosh, Kazuma Mawatari, Takehiko Kitamori, Kenji Kitamura, Takahiro Nagata, Osamu Tabata, Toshiyuki Tsuchiya
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Publication number: 20190267224Abstract: The present disclosure provides an interface device that is capable of introducing a sample that has been ionized into a mass spectrometer with high efficiency. An ice droplet generating section forms ice droplets from a liquid sample that has been supplied from a sample supply section. Further, the ice droplet generating section successively introduces the formed ice droplets into an ionization section. The ionization section ionizes the sample that has been made into ice droplets, and conveys these ionized droplets into a mass spectrometer.Type: ApplicationFiled: September 12, 2017Publication date: August 29, 2019Inventors: Takehiko Kitamori, Kazuma Mawatari, Yutaka Kazoe
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Patent number: 10207264Abstract: A functional device (and a functional device manufacturing method) includes a first substrate in which a groove is formed in one surface, a second substrate which is integrally disposed by bonding one surface of the second substrate to the one surface of the first substrate, and forms a flow path together with the groove of the first substrate, at least one modification object of a capture body which captures a target substance supplied into the flow path, an electrode which imparts an electrical or a chemical action to the target substance, and a catalyst, in which the modification object is disposed by being modified on a part of an inner surface of the flow path, a bonding portion between the one surface of the first substrate and the one surface of the second substrate is formed by bonding fluorine to silica.Type: GrantFiled: September 27, 2013Date of Patent: February 19, 2019Assignee: Japan Science and Technology AgencyInventors: Takehiko Kitamori, Kazuma Mawatari
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Publication number: 20170250430Abstract: A first proton-donating layer (20a) is a layer having a proton-donative functional group on the surface, for example, a silicon oxide layer. A second proton-donating layer (20b) is also a layer having a proton-donative functional group on the surface, for example, a silicon oxide layer. Negative surface charges are formed on the main surface section of a first base (10a) and the main surface section of a second base (10b), and these negative charges increased the proton conductivity in an aqueous solution fed to a nano channel. Although, in the aqueous solution, proton migration through hopping between water molecules contributes to its diffusion, the negative charges formed on the main surfaces of the bases (10a, 10b) attract protons in the aqueous solution, and the conduction of protons is efficiently achieved in “high-speed transfer regions” formed in the vicinity of the proton-donating layers (20a, 20b).Type: ApplicationFiled: October 21, 2015Publication date: August 31, 2017Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Yutaka KAZOE, Yuriy PIHOSH, Kazuma MAWATARI, Takehiko KITAMORI, Kenji KITAMURA, Takahiro NAGATA, Osamu TABATA, Toshiyuki TSUCHIYA
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Publication number: 20150290641Abstract: A functional device (and a functional device manufacturing method) includes a first substrate in which a groove is formed in one surface, a second substrate which is integrally disposed by bonding one surface of the second substrate to the one surface of the first substrate, and forms a flow path together with the groove of the first substrate, at least one modification object of a capture body which captures a target substance supplied into the flow path, an electrode which imparts an electrical or a chemical action to the target substance, and a catalyst, in which the modification object is disposed by being modified on a part of an inner surface of the flow path, a bonding portion between the one surface of the first substrate and the one surface of the second substrate is formed by bonding fluorine to silica.Type: ApplicationFiled: September 27, 2013Publication date: October 15, 2015Inventors: Takehiko Kitamori, Kazuma Mawatari
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Patent number: 9120032Abstract: Provided is a microchip capable of integrating liquid evaporation as an operation on the microchip. In the microchip 10 having a gas flow path 13 inside, liquid is dispersed by capillary action and pooled in a pool portion 12 at a bottom of the gas flow path 13, and at least a part of the liquid pooled in the pool portion 12 is evaporated. As the capillary action is used, the liquid can be dispersed and pooled in the pool portion 12 at the bottom of the gas flow path 13 inside the microchip 10. Besides, the liquid pooled in the pool portion 12 remains in the pool portion by a surface tension even if gas is made to flow in the gas flow path 13 or the gas flow path is evacuated for evaporation. This enables highly efficient evaporation inside the microchip 10.Type: GrantFiled: October 30, 2008Date of Patent: September 1, 2015Assignees: JFE ENGINEERING CORPORATION, KANAGAWA ACADEMY OF SCIENCE AND TECHNOLOGYInventors: Katsuhiko Ohsaki, Shigeki Yamazaki, Takehiko Kitamori, Masaharu Ueno, Kazuma Mawatari, Yoshikuni Kikutani
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Patent number: 8815604Abstract: A microchannel chip having a microchannel formed in a substrate and a gas-liquid phase separation microchannel whose upper part is covered with a porous film, the gas-liquid phase separation microchannel being connected to the downstream end of the microchannel and having a depth of 10 ?m to 100 ?m. Also, a gas-liquid phase separation method which is a method for separating a liquid-phase flow from a two-phase flow flowing through a microchannel by removing a gas phase, the two-phase flow composed of the gas phase and the liquid phase, which liquid phase flows in the periphery of the above-described microchannel and which gas phase flows interiorly of the liquid-phase flow.Type: GrantFiled: March 31, 2010Date of Patent: August 26, 2014Assignees: Institute of Microchemical Technology Co., Ltd., The University of Tokyo, Kanagawa Academy of Science and TechnologyInventors: Arata Aota, Yuko Kihira, Mari Sasaki, Takehiko Kitamori, Kazuma Mawatari
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Publication number: 20120164743Abstract: A microchannel chip having a microchannel formed in a substrate and a gas-liquid phase separation microchannel whose upper part is covered with a porous film, the gas-liquid phase separation microchannel being connected to the downstream end of the microchannel and having a depth of 10 ?m to 100 ?m. Also, a gas-liquid phase separation method which is a method for separating a liquid-phase flow from a two-phase flow flowing through a microchannel by removing a gas phase, the two-phase flow composed of the gas phase and the liquid phase, which liquid phase flows in the periphery of the above-described microchannel and which gas phase flows interiorly of the liquid-phase flow.Type: ApplicationFiled: March 31, 2010Publication date: June 28, 2012Applicants: INSTITUTE OF MICROCHEMICAL TECHNOLOGY CO., LTD., KANAGAWA ACADEMY OF SCIENCE AND TECHNOLOGY, THE UNIVERSITY OF TOKYOInventors: Arata Aota, Yuko Kihira, Mari Sasaki, Takehiko Kitamori, Kazuma Mawatari
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Publication number: 20100247429Abstract: Provided is a microchip capable of integrating liquid evaporation as an operation on the microchip. In the microchip 10 having a gas flow path 13 inside, liquid is dispersed by capillary action and pooled in a pool portion 12 at a bottom of the gas flow path 13, and at least a part of the liquid pooled in the pool portion 12 is evaporated. As the capillary action is used, the liquid can be dispersed and pooled in the pool portion 12 at the bottom of the gas flow path 13 inside the microchip 10. Besides, the liquid pooled in the pool portion 12 remains in the pool portion by a surface tension even if gas is made to flow in the gas flow path 13 or the gas flow path is evacuated for evaporation. This enables highly efficient evaporation inside the microchip 10.Type: ApplicationFiled: October 30, 2008Publication date: September 30, 2010Applicants: JFE ENGINEERING CORPORATION, KANAGAWA ACADEMY OF SCIENCE AND TECHNOLOGYInventors: Katsuhiko Ohsaki, Shigeki Yamazaki, Takehiko Kitamori, Masaharu Ueno, Kazuma Mawatari, Yoshikuni Kikutani
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Publication number: 20100060981Abstract: An objective of the present invention is to provide a circular dichroism thermal lens microscope apparatus capable of identifying and quantifying optically active samples in ultra-trace amounts, and which has a higher sensitivity than conventional apparatuses. The objective is achieved by a circular dichroism thermal lens microscope apparatus which beams excitation light and detection light into an optical microscope, where the detection light enters a thermal lens formed by irradiating a sample with the excitation light, and a substance in a sample is detected by determining the diffusion of the detection light by the thermal lens, and where the excitation light is modulated by a phase-modulation element, so as to identify or quantify an optical isomer.Type: ApplicationFiled: February 10, 2006Publication date: March 11, 2010Applicants: Kanagawa Academy of Science and Technology, Institute of Microchemical Technology, The University of TokyoInventors: Masayo Yamauchi, Akihide Hibara, Takehiko Kitamori, Kazuma Mawatari, Manabu Tokeshi
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Publication number: 20080123088Abstract: There are provided a microchemical system capable of acquiring a highly accurate TLM output value and a method for calculating TLM output thereof. A microchemical system 1 comprises: a microchemical chip having a channel with a depth t in which a sample flows; an exciting light source 13 adapted to irradiate the sample with an exciting light through an objective lens 10 with a numerical aperture NA; a detecting light source 14 adapted to irradiate the sample with a detecting light coaxially with the exciting light through the objective lens 10; and a PD adapted to receive a transmitted light when the detecting light transmits the sample before and after formation of a thermal lens 12. When a TLM output is calculated in the microchemical system 1 on the basis of a received light amount of the PD, the depth t (?m) is set to the range of 75?t?300, the numerical aperture NA is set to the range of 0.04?NA?0.Type: ApplicationFiled: November 16, 2007Publication date: May 29, 2008Applicant: Nippon Sheet Glass Company, LimitedInventors: Masatoshi Nara, Ryo Anraku, Takahiro Asai, Jun Yamaguchi, Akihiko Hattori, Takehiko Kitamori, Manabu Tokeshi, Akihide Hibara, Kazuma Mawatari
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Patent number: 7036979Abstract: In a photothermal spectroscopic analyzer in which a probe light is made to fall on a thermal lens produced in a sample by an input of an excitation light and the sample is analyzed in accordance with a change of the probe light which is caused by the thermal lens, a light source of excitation light is composed of semiconductor laser light emitting means, and a light source of the probe light is composed of another semiconductor laser light emitting means, and furthermore a condenser lens for focusing the excitation light upon the sample and a condenser lens for focusing the probe light upon the thermal lens are configured by a common condenser lens. Such a photothermal spectroscopic analyzer according to the present invention satisfies all the requirements of small size, low manufacturing cost, high sensitivity, high precision, maintenance free performance, short start-up time, and automatic measurement for such a device as to perform POC analysis.Type: GrantFiled: January 29, 2001Date of Patent: May 2, 2006Assignee: Asahi Kasei Kabushiki KaishaInventor: Kazuma Mawatari
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Publication number: 20030002038Abstract: In a photothermal spectroscopic analyzer in which a probe light is made to fall on a thermal lens produced in a sample by an input of an excitation light and the sample is analyzed in accordance with a change of the probe light which is caused by the thermal lens, a light source of excitation light is composed of semiconductor laser light emitting means, and a light source of the probe light is composed of another semiconductor laser light emitting means, and furthermore a condenser lens for focusing the excitation light upon the sample and a condenser lens for focusing the probe light upon the thermal lens are configured by a common condenser lens. Such a photothermal spectroscopic analyzer according to the present invention satisfies all the requirements of small size, low manufacturing cost, high sensitivity, high precision, maintenance free performance, short start-up time, and automatic measurement for such a device as to perform POC analysis.Type: ApplicationFiled: July 16, 2002Publication date: January 2, 2003Inventor: Kazuma Mawatari