Patents by Inventor Daisuke Niwa

Daisuke Niwa 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: 11644458
    Abstract: A method is shown for preparing a specimen for extensively analyzing a resident skin bacterium and/or a substance present in the stratum corneum, such as a protein or a lipid, or observing the shape of the stratum corneum. A method for preparing a specimen for analyzing a resident skin bacterium and/or a substance present m the stratum corneum or observing the shape of the stratum, includes applying a solution containing a polyvinyl alcohol polymer to the skin so as to form a thin-film and peeling and collecting the formed thin-film.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: May 9, 2023
    Assignee: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Daisuke Niwa, Akemi Imaoka, Naoki Izawa, Yasuyuki Takahashi, Miyuki Kudo
  • Patent number: 11235170
    Abstract: A phototherapy device including: an irradiation probe for radiating irradiation light toward a living body; a probe fixing unit into which the irradiation probe is inserted and at the same time fixed on a living body; an observation module placed on the probe fixing unit and provided with an observation means for observing an irradiation site irradiated with irradiation light which is radiated to the living body; and a moving means capable of moving the observation module to a space where the irradiation probe is to be placed in the probe fixing unit during observation of the irradiation site.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: February 1, 2022
    Assignee: Teijin Pharma Limited
    Inventors: Yuki Kawase, Takamitsu Okayama, Daisuke Niwa, Rei Tamiya, Shosaku Motohara, Satoshi Igarashi
  • Publication number: 20210121712
    Abstract: A phototherapy device including: an irradiation probe for radiating irradiation light toward a living body; a probe fixing unit into which the irradiation probe is inserted and at the same time fixed on a living body; an observation module placed on the probe fixing unit and provided with an observation means for observing an irradiation site irradiated with irradiation light which is radiated to the living body; and a moving means capable of moving the observation module to a space where the irradiation probe is to be placed in the probe fixing unit during observation of the irradiation site.
    Type: Application
    Filed: May 21, 2018
    Publication date: April 29, 2021
    Applicant: Teijin Pharma Limited
    Inventors: Yuki KAWASE, Takamitsu OKAYAMA, Daisuke NIWA, Rei TIMIYA, Shosaku MOTOHARA, Satoshi IGARASHI
  • Publication number: 20200292525
    Abstract: Provided is a method for preparing a specimen for extensively analyzing a resident skin bacterium and/or a substance present in the stratum corneum, such as a protein or a lipid, or observing the shape of the stratum corneum. A method for preparing a specimen for analyzing a resident skin bacterium and/or a substance present in the stratum corneum or observing the shape of the stratum, comprising applying a solution containing a polyvinyl alcohol polymer to the skin so as to form a thin-film and peeling and collecting the formed thin-film.
    Type: Application
    Filed: August 31, 2017
    Publication date: September 17, 2020
    Applicant: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Daisuke NIWA, Akemi IMAOKA, Naoki IZAWA, Yasuyuki TAKAHASHI, Miyuki KUDO
  • Patent number: 10426804
    Abstract: A pentosidine production inhibitor including a lactic acid bacterium fermentation product as an active ingredient, which has a stronger action and a high safety as a component having an action of inhibiting production of pentosidine.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: October 1, 2019
    Assignee: Kabushiki Kaisha Yakult Honsha
    Inventors: Naoki Izawa, Daisuke Niwa, Toshiro Sone
  • Publication number: 20160166622
    Abstract: A pentosidine production inhibitor including a lactic acid bacterium fermentation product as an active ingredient, which has a stronger action and a high safety as a component having an action of inhibiting production of pentosidine.
    Type: Application
    Filed: June 25, 2014
    Publication date: June 16, 2016
    Applicant: Kabushiki Kaisha Yakult Honsha
    Inventors: Naoki IZAWA, Daisuke NIWA, Toshiro SONE
  • Patent number: 9113793
    Abstract: Among the technical characteristics disclosed in this specification, the pulse wave sensor with one of the technical characteristic includes a construction to detect the pulse wave at a wrist (i.e., a construction to measure the pulse wave to be worn at the wrist). To be more concrete, the pulse wave sensor includes a measurement unit to measure the pulse wave, a power source unit to supply power to the measurement unit, a cable to connect between the measurement unit and the power source unit electrically, and a armlet type housing to contain the measurement unit, the power source unit, and the cable.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: August 25, 2015
    Assignee: Rohm Co., Ltd.
    Inventors: Koji Terumoto, Daisuke Niwa, Tsuyoshi Satomi, Kazuhiro Oguchi
  • Publication number: 20140364330
    Abstract: The invention provides a bio-sensing nanodevice comprising: a stabilized G-protein coupled receptor on a support, a real time receptor-ligand binding detection method, a test composition delivery system and a test composition recognition program. The G-protein coupled receptor can be stabilized using surfactant peptide. The nanodevice provides a greater surface area for better precision and sensitivity to odorant detection. The invention further provides a microfluidic chip containing a stabilized G-protein coupled receptor immobilized on a support, and arranged in at least two dimensional microarray system. The invention also provides a method of delivering odorant comprising the step of manipulating the bubbles in complex microfluidic networks wherein the bubbles travel in a microfluidic channel carrying a variety of gas samples to a precise location on a chip. The invention further provides method of fabricating hOR17-4 olfactory receptor.
    Type: Application
    Filed: June 9, 2014
    Publication date: December 11, 2014
    Inventors: Andreas Mershin, Brian Cook, Liselotte Kaiser, Johanna F. Bikker, Yoshikatsu Miura, Daisuke Niwa, Dai Ohnishi, Atsushi Tazuke, Shuguang Zhang
  • Publication number: 20140309537
    Abstract: A wireless plethysmogram sensor unit is capable of obtaining a plethysmogram from a living tissue of a measuring object and of transmitting the plethysmogram to a processing unit outside the wireless plethysmogram sensor unit. The sensor unit includes a light source to emit measuring light into the living tissue and a light receiving element to receive light emerging from the tissue, which is accompanied by pulsation caused by absorption by arteries in the tissue. A memory stores a plethysmogram obtained in accordance with the light received by the light receiving element. A short range wireless communicator transmits the plethysmogram to the processing unit. A power source provides power to other elements in the sensor unit, and a controller controls the elements of the sensor unit.
    Type: Application
    Filed: June 27, 2014
    Publication date: October 16, 2014
    Inventors: Daisuke Niwa, Koji Terumoto, Kazuhiro Oguchi, Masahide Tanaka, Ken Nakahara
  • Patent number: 8795184
    Abstract: A wireless plethysmogram sensor unit is capable of obtaining a plethysmogram from a living tissue of a measuring object and of transmitting the plethysmogram to a processing unit outside the wireless plethysmogram sensor unit. The sensor unit includes a light source to emit measuring light into the living tissue and a light receiving element to receive light emerging from the tissue, which is accompanied by pulsation caused by absorption by arteries in the tissue. A memory stores a plethysmogram obtained in accordance with the light received by the light receiving element. A short range wireless communicator transmits the plethysmogram to the processing unit. A power source provides power to other elements in the sensor unit, and a controller controls the elements of the sensor unit.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: August 5, 2014
    Assignee: Rohm Co., Ltd.
    Inventors: Daisuke Niwa, Koji Terumoto, Kazuhiro Oguchi, Masahide Tanaka, Ken Nakahara
  • Patent number: 8748111
    Abstract: The invention provides a bio-sensing nanodevice comprising: a stabilized G-protein coupled receptor on a support, a real time receptor-ligand binding detection method, a test composition delivery system and a test composition recognition program. The G-protein coupled receptor can be stabilized using surfactant peptide. The nanodevice provides a greater surface area for better precision and sensitivity to odorant detection. The invention further provides a microfluidic chip containing a stabilized G-protein coupled receptor immobilized on a support, and arranged in at least two dimensional microarray system. The invention also provides a method of delivering odorant comprising the step of manipulating the bubbles in complex microfluidic networks wherein the bubbles travel in a microfluidic channel carrying a variety of gas samples to a precise location on a chip. The invention further provides method of fabricating hOR17-4 olfactory receptor.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: June 10, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: Andreas Mershin, Brian Cook, Liselotte Kaiser, Johanna F. Bikker, Yoshikatsu Miura, Daisuke Niwa, Dai Ohnishi, Atsushi Tazuke, Shuguang Zhang
  • Patent number: 8358880
    Abstract: The present invention provides a hybrid coupling structure of a short range surface plasmon polariton and a conventional dielectric waveguide, including a dielectric substrate layer, a dielectric waveguide layer positioned on the said dielectric substrate layer, a coupling matching layer positioned on the said dielectric waveguide layer and a short range surface plasmon waveguide portion, formed on the said coupling matching layer, for conducting the short range surface plasmon polariton. The present invention also provides a coupling structure of a long range surface plasmon polariton and a dielectric waveguide, including a dielectric substrate layer, a dielectric waveguide layer, a coupling matching layer and a long range surface plasmon waveguide portion upward from below respectively.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: January 22, 2013
    Assignees: Rohm Co., Ltd., Tsinghua University
    Inventors: Fang Liu, Rui-Yuan Wan, Yi-Dong Huang, Xue Feng, Wei Zhang, Jiang De Peng, Yoshikatsu Miura, Daisuke Niwa, Dai Ohnishi
  • Publication number: 20120237950
    Abstract: An analysis chip for quantitative analysis by using a competitive reaction is provided. The analysis chip for analyzing a target substance to be identified in a liquid sample includes a base, and a flow path formed on the base. The flow path includes an introduction portion, for introducing the liquid sample; a reaction portion, disposed at a downstream side of the introduction portion, for subjecting the liquid sample to a competitive reaction; a discharge portion, disposed at a downstream side of the reaction portion; and a blocking portion, disposed between the reaction portion and the discharge portion, for inhibiting the flow of the liquid sample from the reaction portion to the discharge portion. The reaction portion accommodates a carrier prefixed with a specific binding substance for specifically binding the target substance to be identified or a competitive substance of the target substance to be identified.
    Type: Application
    Filed: March 16, 2012
    Publication date: September 20, 2012
    Applicant: ROHM CO., LTD.
    Inventors: Yoshikatsu Imai, Daisuke Niwa
  • Publication number: 20120150047
    Abstract: Among the technical characteristics disclosed in this specification, the pulse wave sensor with one of the technical characteristic includes a construction to detect the pulse wave at a wrist (i.e., a construction to measure the pulse wave to be worn at the wrist). To be more concrete, the pulse wave sensor includes a measurement unit to measure the pulse wave, a power source unit to supply power to the measurement unit, a cable to connect between the measurement unit and the power source unit electrically, and a armlet type housing to contain the measurement unit, the power source unit, and the cable.
    Type: Application
    Filed: November 14, 2011
    Publication date: June 14, 2012
    Applicant: ROHM CO., LTD.
    Inventors: Koji Terumoto, Daisuke Niwa, Tsuyoshi Satomi, Kazuhiro Oguchi
  • Publication number: 20120021932
    Abstract: The invention provides a bio-sensing nanodevice comprising: a stabilized G-protein coupled receptor on a support, a real time receptor-ligand binding detection method, a test composition delivery system and a test composition recognition program. The G-protein coupled receptor can be stabilized using surfactant peptide. The nanodevice provides a greater surface area for better precision and sensitivity to odorant detection. The invention further provides a microfluidic chip containing a stabilized G-protein coupled receptor immobilized on a support, and arranged in at least two dimensional microarray system. The invention also provides a method of delivering odorant comprising the step of manipulating the bubbles in complex microfluidic networks wherein the bubbles travel in a microfluidic channel carrying a variety of gas samples to a precise location on a chip. The invention further provides method of fabricating hOR17-4 olfactory receptor.
    Type: Application
    Filed: January 28, 2011
    Publication date: January 26, 2012
    Inventors: Andreas Mershin, Brian Cook, Liselotte Kaiser, Johanna F. Bikker, Yoshikatsu Miura, Daisuke Niwa, Dai Ohnishi, Atsushi Tazuke, Shuguang Zhang
  • Publication number: 20120016245
    Abstract: The plethysmogram sensor disclosed in this specification includes a light emitting portion whose output is variable, a light receiving portion to detect a light emitted from the light emitting portion and penetrates a living body of a measured person, and a processing unit to acquire information about the plethysmogram of the measured person based on a measured value provided from the light receiving portion.
    Type: Application
    Filed: July 13, 2011
    Publication date: January 19, 2012
    Applicant: ROHM CO., LTD.
    Inventors: Daisuke Niwa, Koji Terumoto, Kazuhiro Oguchi, Tsuyoshi Satomi
  • Patent number: 8048385
    Abstract: There is provided a sensing chip capable of measuring a refractive index by utilizing a long-range surface plasmon polariton, accurately measuring an accumulative refractive index in a wide range, and more easily enabling sealing for measurement. The present invention relates to the sensing chip which has a thin metal film or a strip-like metal grown on an underlayer, and has a dielectric that limits a refractive index and a dielectric buffer layer on an upper surface and a lower surface of the thin metal film or the strip-like metal. The dielectric buffer layer is attached onto the thin metal film or the strip-like metal. The thin metal film or the strip-like metal and the buffer layer are sandwiched between two dielectric layers. A hole is made in a surface of the upper dielectric layer to serve as a measurement groove.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: November 1, 2011
    Assignees: Rohm Co., Ltd., Tsinghua University
    Inventors: Huang Yi Dong, Rao Yi, Liu Fang, Zhang Wei, Peng Jiang De, Dai Ohnishi, Daisuke Niwa, Atsushi Tazuke, Yoshikatsu Miura
  • Patent number: 8035810
    Abstract: A surface plasmon resonance sensor chip includes: a first dielectric layer; a metal layer disposed on the first dielectric layer; and a second dielectric layer covering the metal layer, the chip being provided with an opening that makes a part of a surface on the side of the second dielectric layer of the metal layer be exposed, and allows a measurement sample and the surface on the side of the second dielectric layer to contact each other, wherein an organic molecule film is provided at least one of between the first dielectric layer and the metal layer, and between the metal layer and the second dielectric layer.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: October 11, 2011
    Assignee: Rohm Co., Ltd.
    Inventors: Atsushi Tazuke, Daisuke Niwa, Yoshikatsu Miura, Dai Ohnishi
  • Publication number: 20110003285
    Abstract: A simple and accurate separation purification method for object biomolecules or bio-associated substance through a particulate aggregative reaction is provided. A microfluidic circuit utilizing a particulate aggregate as a detection marker in a nonfluorescence method such as an electrochemical method or surface plasmon resonance is provided. The separation purification method comprises the steps of forming a particulate aggregate by a reaction between particulates modified with a labeling substance specifically reacting with a label object substance and biomolecules or a bio-associated substance containing the label object substance and separation-purifying the particulate aggregate. The microfluidic circuit utilizes this separation purification method.
    Type: Application
    Filed: December 14, 2007
    Publication date: January 6, 2011
    Applicant: Rohm Co., Ltd.
    Inventor: Daisuke Niwa
  • Publication number: 20100310205
    Abstract: The present invention provides a hybrid coupling structure of a short range surface plasmon polariton and a conventional dielectric waveguide, including a dielectric substrate layer, a dielectric waveguide layer positioned on the said dielectric substrate layer, a coupling matching layer positioned on the said dielectric waveguide layer and a short range surface plasmon waveguide portion, formed on the said coupling matching layer, for conducting the short range surface plasmon polariton. The present invention also provides a coupling structure of a long range surface plasmon polariton and a dielectric waveguide, including a dielectric substrate layer, a dielectric waveguide layer, a coupling matching layer and a long range surface plasmon waveguide portion upward from below respectively.
    Type: Application
    Filed: December 16, 2009
    Publication date: December 9, 2010
    Applicants: Rohm Co., Ltd., Tsinghua University
    Inventors: Fan Liu, Rui-Yuan Wan, Yi-Dong Huang, Xue Feng, Wei Zhang, Jiang De Peng, Yoshikatsu Miura, Daisuke Niwa, Dai Ohnishi