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).

  • Publication number: 20230347336
    Abstract: 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: Application
    Filed: April 24, 2023
    Publication date: November 2, 2023
    Inventors: Kazuma MAWATARI, Kazumasa KINOSHITA, Takao NISHIGUCHI, Haruo SHIMADA
  • Patent number: 10756372
    Abstract: 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: Grant
    Filed: October 21, 2015
    Date of Patent: August 25, 2020
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Yutaka Kazoe, Yuriy Pihosh, Kazuma Mawatari, Takehiko Kitamori, Kenji Kitamura, Takahiro Nagata, Osamu Tabata, Toshiyuki Tsuchiya
  • Publication number: 20190267224
    Abstract: 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: Application
    Filed: September 12, 2017
    Publication date: August 29, 2019
    Inventors: Takehiko Kitamori, Kazuma Mawatari, Yutaka Kazoe
  • Patent number: 10207264
    Abstract: 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: Grant
    Filed: September 27, 2013
    Date of Patent: February 19, 2019
    Assignee: Japan Science and Technology Agency
    Inventors: Takehiko Kitamori, Kazuma Mawatari
  • Publication number: 20170250430
    Abstract: 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: Application
    Filed: October 21, 2015
    Publication date: August 31, 2017
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Yutaka KAZOE, Yuriy PIHOSH, Kazuma MAWATARI, Takehiko KITAMORI, Kenji KITAMURA, Takahiro NAGATA, Osamu TABATA, Toshiyuki TSUCHIYA
  • Publication number: 20150290641
    Abstract: 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: Application
    Filed: September 27, 2013
    Publication date: October 15, 2015
    Inventors: Takehiko Kitamori, Kazuma Mawatari
  • Patent number: 9120032
    Abstract: 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: Grant
    Filed: October 30, 2008
    Date of Patent: September 1, 2015
    Assignees: JFE ENGINEERING CORPORATION, KANAGAWA ACADEMY OF SCIENCE AND TECHNOLOGY
    Inventors: Katsuhiko Ohsaki, Shigeki Yamazaki, Takehiko Kitamori, Masaharu Ueno, Kazuma Mawatari, Yoshikuni Kikutani
  • Patent number: 8815604
    Abstract: 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: Grant
    Filed: March 31, 2010
    Date of Patent: August 26, 2014
    Assignees: Institute of Microchemical Technology Co., Ltd., The University of Tokyo, Kanagawa Academy of Science and Technology
    Inventors: Arata Aota, Yuko Kihira, Mari Sasaki, Takehiko Kitamori, Kazuma Mawatari
  • Publication number: 20120164743
    Abstract: 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: Application
    Filed: March 31, 2010
    Publication date: June 28, 2012
    Applicants: INSTITUTE OF MICROCHEMICAL TECHNOLOGY CO., LTD., KANAGAWA ACADEMY OF SCIENCE AND TECHNOLOGY, THE UNIVERSITY OF TOKYO
    Inventors: Arata Aota, Yuko Kihira, Mari Sasaki, Takehiko Kitamori, Kazuma Mawatari
  • Publication number: 20100247429
    Abstract: 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: Application
    Filed: October 30, 2008
    Publication date: September 30, 2010
    Applicants: JFE ENGINEERING CORPORATION, KANAGAWA ACADEMY OF SCIENCE AND TECHNOLOGY
    Inventors: Katsuhiko Ohsaki, Shigeki Yamazaki, Takehiko Kitamori, Masaharu Ueno, Kazuma Mawatari, Yoshikuni Kikutani
  • Publication number: 20100060981
    Abstract: 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: Application
    Filed: February 10, 2006
    Publication date: March 11, 2010
    Applicants: Kanagawa Academy of Science and Technology, Institute of Microchemical Technology, The University of Tokyo
    Inventors: Masayo Yamauchi, Akihide Hibara, Takehiko Kitamori, Kazuma Mawatari, Manabu Tokeshi
  • Publication number: 20080123088
    Abstract: 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: Application
    Filed: November 16, 2007
    Publication date: May 29, 2008
    Applicant: Nippon Sheet Glass Company, Limited
    Inventors: Masatoshi Nara, Ryo Anraku, Takahiro Asai, Jun Yamaguchi, Akihiko Hattori, Takehiko Kitamori, Manabu Tokeshi, Akihide Hibara, Kazuma Mawatari
  • Patent number: 7036979
    Abstract: 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: Grant
    Filed: January 29, 2001
    Date of Patent: May 2, 2006
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Kazuma Mawatari
  • Publication number: 20030002038
    Abstract: 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: Application
    Filed: July 16, 2002
    Publication date: January 2, 2003
    Inventor: Kazuma Mawatari