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).
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Patent number: 11644458Abstract: 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: GrantFiled: August 31, 2017Date of Patent: May 9, 2023Assignee: KABUSHIKI KAISHA YAKULT HONSHAInventors: Daisuke Niwa, Akemi Imaoka, Naoki Izawa, Yasuyuki Takahashi, Miyuki Kudo
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Patent number: 11235170Abstract: 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: GrantFiled: May 21, 2018Date of Patent: February 1, 2022Assignee: Teijin Pharma LimitedInventors: Yuki Kawase, Takamitsu Okayama, Daisuke Niwa, Rei Tamiya, Shosaku Motohara, Satoshi Igarashi
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Publication number: 20210121712Abstract: 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: ApplicationFiled: May 21, 2018Publication date: April 29, 2021Applicant: Teijin Pharma LimitedInventors: Yuki KAWASE, Takamitsu OKAYAMA, Daisuke NIWA, Rei TIMIYA, Shosaku MOTOHARA, Satoshi IGARASHI
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Publication number: 20200292525Abstract: 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: ApplicationFiled: August 31, 2017Publication date: September 17, 2020Applicant: KABUSHIKI KAISHA YAKULT HONSHAInventors: Daisuke NIWA, Akemi IMAOKA, Naoki IZAWA, Yasuyuki TAKAHASHI, Miyuki KUDO
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Patent number: 10426804Abstract: 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: GrantFiled: June 25, 2014Date of Patent: October 1, 2019Assignee: Kabushiki Kaisha Yakult HonshaInventors: Naoki Izawa, Daisuke Niwa, Toshiro Sone
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Publication number: 20160166622Abstract: 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: ApplicationFiled: June 25, 2014Publication date: June 16, 2016Applicant: Kabushiki Kaisha Yakult HonshaInventors: Naoki IZAWA, Daisuke NIWA, Toshiro SONE
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Patent number: 9113793Abstract: 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: GrantFiled: November 14, 2011Date of Patent: August 25, 2015Assignee: Rohm Co., Ltd.Inventors: Koji Terumoto, Daisuke Niwa, Tsuyoshi Satomi, Kazuhiro Oguchi
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Publication number: 20140364330Abstract: 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: ApplicationFiled: June 9, 2014Publication date: December 11, 2014Inventors: Andreas Mershin, Brian Cook, Liselotte Kaiser, Johanna F. Bikker, Yoshikatsu Miura, Daisuke Niwa, Dai Ohnishi, Atsushi Tazuke, Shuguang Zhang
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Publication number: 20140309537Abstract: 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: ApplicationFiled: June 27, 2014Publication date: October 16, 2014Inventors: Daisuke Niwa, Koji Terumoto, Kazuhiro Oguchi, Masahide Tanaka, Ken Nakahara
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Patent number: 8795184Abstract: 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: GrantFiled: July 11, 2011Date of Patent: August 5, 2014Assignee: Rohm Co., Ltd.Inventors: Daisuke Niwa, Koji Terumoto, Kazuhiro Oguchi, Masahide Tanaka, Ken Nakahara
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Patent number: 8748111Abstract: 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: GrantFiled: January 28, 2011Date of Patent: June 10, 2014Assignee: Massachusetts Institute of TechnologyInventors: Andreas Mershin, Brian Cook, Liselotte Kaiser, Johanna F. Bikker, Yoshikatsu Miura, Daisuke Niwa, Dai Ohnishi, Atsushi Tazuke, Shuguang Zhang
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Patent number: 8358880Abstract: 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: GrantFiled: December 16, 2009Date of Patent: January 22, 2013Assignees: Rohm Co., Ltd., Tsinghua UniversityInventors: Fang Liu, Rui-Yuan Wan, Yi-Dong Huang, Xue Feng, Wei Zhang, Jiang De Peng, Yoshikatsu Miura, Daisuke Niwa, Dai Ohnishi
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Publication number: 20120237950Abstract: 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: ApplicationFiled: March 16, 2012Publication date: September 20, 2012Applicant: ROHM CO., LTD.Inventors: Yoshikatsu Imai, Daisuke Niwa
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Publication number: 20120150047Abstract: 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: ApplicationFiled: November 14, 2011Publication date: June 14, 2012Applicant: ROHM CO., LTD.Inventors: Koji Terumoto, Daisuke Niwa, Tsuyoshi Satomi, Kazuhiro Oguchi
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Publication number: 20120021932Abstract: 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: ApplicationFiled: January 28, 2011Publication date: January 26, 2012Inventors: Andreas Mershin, Brian Cook, Liselotte Kaiser, Johanna F. Bikker, Yoshikatsu Miura, Daisuke Niwa, Dai Ohnishi, Atsushi Tazuke, Shuguang Zhang
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Publication number: 20120016245Abstract: 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: ApplicationFiled: July 13, 2011Publication date: January 19, 2012Applicant: ROHM CO., LTD.Inventors: Daisuke Niwa, Koji Terumoto, Kazuhiro Oguchi, Tsuyoshi Satomi
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Patent number: 8048385Abstract: 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: GrantFiled: December 31, 2008Date of Patent: November 1, 2011Assignees: Rohm Co., Ltd., Tsinghua UniversityInventors: Huang Yi Dong, Rao Yi, Liu Fang, Zhang Wei, Peng Jiang De, Dai Ohnishi, Daisuke Niwa, Atsushi Tazuke, Yoshikatsu Miura
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Patent number: 8035810Abstract: 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: GrantFiled: February 4, 2009Date of Patent: October 11, 2011Assignee: Rohm Co., Ltd.Inventors: Atsushi Tazuke, Daisuke Niwa, Yoshikatsu Miura, Dai Ohnishi
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Publication number: 20110003285Abstract: 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: ApplicationFiled: December 14, 2007Publication date: January 6, 2011Applicant: Rohm Co., Ltd.Inventor: Daisuke Niwa
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Publication number: 20100310205Abstract: 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: ApplicationFiled: December 16, 2009Publication date: December 9, 2010Applicants: Rohm Co., Ltd., Tsinghua UniversityInventors: Fan Liu, Rui-Yuan Wan, Yi-Dong Huang, Xue Feng, Wei Zhang, Jiang De Peng, Yoshikatsu Miura, Daisuke Niwa, Dai Ohnishi