Patents by Inventor Yoshinori Akagi
Yoshinori Akagi 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: 20210310945Abstract: An inspecting instrument to be used for measuring, using a test substance-containing solution containing a test substance and a liquid, which is contained in the test substance-containing liquid. The inspecting instrument includes a wall that has a periodic structure resulting from a plurality of recesses or protrusions, the plurality of recesses or the plurality of protrusions including a refractive index adjusting layer on surfaces thereof, the refractive index adjusting layer being a layer having a refractive index greater than a refractive index of the test substance-containing solution or being a silicon layer. A method of measuring the concentration of a test substance in a liquid, measured using the inspecting instrument, has high accuracy.Type: ApplicationFiled: July 31, 2019Publication date: October 7, 2021Applicants: SEKISUI CHEMICAL CO., LTD., UNIVERSITY PUBLIC CORPORATION OSAKAInventors: Yoshinori AKAGI, Motohiko ASANO, Jun DOI, Tatsuro ENDO
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Publication number: 20210239690Abstract: Provided is an implement for inspection capable of measuring the concentration of a test substance with high accuracy. The implement for inspection according to the present invention is an implement for inspection used for measuring the concentration of a test substance that includes a compound for reacting with a test substance to form a granular substance or a compound which is for being bound to the test substance and is a granular substance, and a wall portion having a periodic structure on its surface.Type: ApplicationFiled: April 22, 2021Publication date: August 5, 2021Inventors: Yoshinori Akagi, Nobuhiko Inui, Kazuhiko Imamura, Takamasa Kouno, Shigeru Nomura, Tatsuro Endo
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Patent number: 11016087Abstract: Provided is an implement for inspection capable of measuring the concentration of a test substance with high accuracy. The implement for inspection according to the present invention is an implement for inspection used for measuring the concentration of a test substance that includes a compound for reacting with a test substance to form a granular substance or a compound which is for being bound to the test substance and is a granular substance, and a wall portion having a periodic structure on its surface.Type: GrantFiled: February 9, 2017Date of Patent: May 25, 2021Assignees: SEKISUI CHEMICAL CO., LTD., UNIVERSITY PUBLIC CORPORATION OSAKAInventors: Yoshinori Akagi, Nobuhiko Inui, Kazuhiko Imamura, Takamasa Kouno, Shigeru Nomura, Tatsuro Endo
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Patent number: 10731062Abstract: Provided is a gas-generating material which exhibits a high adhesive property to a member to be adhered and which makes it possible to generate a gas in a large amount per unit time even when the gas-generating material contains a silane coupling agent. The gas-generating material according to the present invention contains: a binder resin; a gas-generating agent which is an azo compound or an azide compound; and a silane coupling agent having an amino group.Type: GrantFiled: August 30, 2013Date of Patent: August 4, 2020Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Shigeru Nomura, Yoshinori Akagi, Shuichiro Matsumoto
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Publication number: 20190041337Abstract: Provided is an implement for inspection capable of measuring the concentration of a test substance with high accuracy. The implement for inspection according to the present invention is an implement for inspection used for measuring the concentration of a test substance that includes a compound for reacting with a test substance to form a granular substance or a compound which is for being bound to the test substance and is a granular substance, and a wall portion having a periodic structure on its surface.Type: ApplicationFiled: February 9, 2017Publication date: February 7, 2019Inventors: Yoshinori Akagi, Nobuhiko Inui, Kazuhiko Imamura, Takamasa Kouno, Shigeru Nomura, Tatsuro Endo
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Publication number: 20150232714Abstract: Provided is a gas-generating material which exhibits a high adhesive property to a member to be adhered and which makes it possible to generate a gas in a large amount per unit time even when the gas-generating material contains a silane coupling agent. The gas-generating material according to the present invention contains: a binder resin; a gas-generating agent which is an azo compound or an azide compound; and a silane coupling agent having an amino group.Type: ApplicationFiled: August 30, 2013Publication date: August 20, 2015Inventors: Shigeru Nomura, Yoshinori Akagi, Shuichiro Matsumoto
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Patent number: 8986630Abstract: Provided is a gas-generating material which can generate a gas in a large amount per unit time and has high storage stability. The gas-generating material 11a according to the present invention comprises a gas-generating agent that is an azo compound or an azide compound, a tertiary amine, a photosensitizing agent and a binder resin.Type: GrantFiled: September 25, 2012Date of Patent: March 24, 2015Assignee: Sekisui Chemical Co., Ltd.Inventors: Yoshinori Akagi, Shigeru Nomura
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Patent number: 8771612Abstract: The present invention provides a photoresponsive gas-generating material that is to be used in a micropump of a microfluid device having fine channels formed therein, and is capable of effectively generating gases for transporting a microfluid in response to light irradiation and transporting the microfluid at an improved transport efficiency. The present invention also provides a micropump incorporating the photoresponsive gas-generating material. A photoresponsive gas-generating material 13 is to be used in a micropump having fine channels formed in a substrate, and comprises a photo-sensitive acid-generating agent and an acid-sensitive gas-generating agent, and a micropump 10 has the photoresponsive gas-generating material 13 housed therein.Type: GrantFiled: March 11, 2009Date of Patent: July 8, 2014Assignee: Sekisui Chemical Co., Ltd.Inventors: Masateru Fukuoka, Kazuki Yamamoto, Yoshinori Akagi, Hiroji Fukui
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Publication number: 20140161687Abstract: Provided is a gas-generating material which can generate a gas in a large amount per unit time and has high storage stability. The gas-generating material 11a according to the present invention comprises a gas-generating agent that is an azo compound or an azide compound, a tertiary amine, a photosensitizing agent and a binder resin.Type: ApplicationFiled: September 25, 2012Publication date: June 12, 2014Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yoshinori Akagi, Shigeru Nomura
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Publication number: 20140134075Abstract: The present invention provides a photoresponsive gas-generating material that is to be used in a micropump of a microfluid device having fine channels formed therein, and is capable of effectively generating gases for transporting a microfluid in response to light irradiation and transporting the microfluid at an improved transport efficiency. The present invention also provides a micropump incorporating the photoresponsive gas-generating material. A photoresponsive gas-generating material 13 is to be used in a micropump having fine channels formed in a substrate, and comprises a photo-sensitive acid-generating agent and an acid-sensitive gas-generating agent, and a micropump 10 has the photoresponsive gas-generating material 13 housed therein.Type: ApplicationFiled: January 22, 2014Publication date: May 15, 2014Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Masateru Fukuoka, Kazuki Yamamoto, Yoshinori Akagi, Hiroji Fukui
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Patent number: 8353679Abstract: To provide a micropump device having good controllability over the amount of gas generated from the gas generating material and thus the amount of liquid fed by the micropump. The micropump device includes a micropump 10 and a controller 50. The micropump 10 includes: a microchannel 22 serving as a channel for liquid; a gas generating material 34 generating a gas upon exposure to light and supplying the gas to the microchannel 22; and a light source 42 for irradiating the gas generating material 34 with light 44. The controller 50 supplies to the light source 42 a control pulse signal CS that causes the light source 42 to blink on and off in a binary manner by repeating a pulse train pattern composed of a fixed number of bits each capable of having two states, one of which is a first level allowing the light source 42 to be turned on and the other of which is a second level allowing the light source 42 to be turned off.Type: GrantFiled: March 17, 2009Date of Patent: January 15, 2013Assignee: Sekisui Chemical Co., Ltd.Inventors: Kazuki Yamamoto, Masateru Fukuoka, Yoshinori Akagi, Hiroji Fukui
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Patent number: 8197773Abstract: The present invention provides a microfluidic device with a micro-pump system in which the production process is simplified and the device is further downsized. A microfluidic device 1 has a gas generation portion 3. The gas generation portion 3 has a substrate 10 and a gas generation layer 20. The substrate 10 has a first main surface 10a and a second main surface 10b. The substrate 10 has a micro-channel 14 with an opening at least on the first main surface 10a. The gas generation layer 20 is disposed on the first main surface 10a of the substrate 10 so as to cover an opening 14a. The gas generation layer 20 generates gas by receiving an external stimulus.Type: GrantFiled: March 11, 2009Date of Patent: June 12, 2012Assignee: Sekisui Chemical Co., Ltd.Inventors: Masateru Fukuoka, Kazuki Yamamoto, Yoshinori Akagi, Hiroji Fukui
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Patent number: 8058072Abstract: This invention provides a measuring apparatus for microanalysis, which can be simply manufactured and can realize a number of analyses and measurements in a small analyte amount and particularly can analyze and measure a number of analytes having different concentrations and different analytes in a simultaneous and easy manner, and a measurement method of microanalysis using the apparatus. The measuring apparatus for microanalysis is characterized by comprising detection parts of m lines and n rows in communication with a micropassage for a waste solution, chambers of m lines and n rows in communication with the respective detection parts through a mixing flow passage, n first micropassages in communication with the respective line chambers through a passive valve, m second micropassages in communication with respective row chambers through a passive valve, and third micropassages in communication with the respective chambers for supplying gas and/or a washing solution.Type: GrantFiled: October 18, 2007Date of Patent: November 15, 2011Assignee: Sekisui Chemical Co., Ltd.Inventors: Minoru Seki, Junya Takagi, Kazuki Yamamoto, Yoshinori Akagi
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Publication number: 20110129392Abstract: To provide a micropump device having good controllability over the amount of gas generated from the gas generating material and thus the amount of liquid fed by the micropump. The micropump device includes a micropump 10 and a controller 50. The micropump 10 includes: a microchannel 22 serving as a channel for liquid; a gas generating material 34 generating a gas upon exposure to light and supplying the gas to the microchannel 22; and a light source 42 for irradiating the gas generating material 34 with light 44. The controller 50 supplies to the light source 42 a control pulse signal CS that causes the light source 42 to blink on and off in a binary manner by repeating a pulse train pattern composed of a fixed number of bits each capable of having two states, one of which is a first level allowing the light source 42 to be turned on and the other of which is a second level allowing the light source 42 to be turned off.Type: ApplicationFiled: March 17, 2009Publication date: June 2, 2011Inventors: Kazuki Yamamoto, Masateru Fukuoka, Yoshinori Akagi, Hiroji Fukui
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Publication number: 20110044863Abstract: The present invention provides a microfluidic device with a micro-pump system in which the production process is simplified and the device is further downsized. A microfluidic device 1 has a gas generation portion 3. The gas generation portion 3 has a substrate 10 and a gas generation layer 20. The substrate 10 has a first main surface 10a and a second main surface 10b. The substrate 10 has a micro-channel 14 with an opening at least on the first main surface 10a. The gas generation layer 20 is disposed on the first main surface 10a of the substrate 10 so as to cover an opening 14a. The gas generation layer 20 generates gas by receiving an external stimulus.Type: ApplicationFiled: March 11, 2009Publication date: February 24, 2011Inventors: Masateru Fukuoka, Kazuki Yamamoto, Yoshinori Akagi, Hiroji Fukui
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Publication number: 20110014096Abstract: The present invention provides a photoresponsive gas-generating material that is to be used in a micropump of a microfluid device having fine channels formed therein, and is capable of effectively generating gases for transporting a microfluid in response to light irradiation and transporting the microfluid at an improved transport efficiency. The present invention also provides a micropump incorporating the photoresponsive gas-generating material. A photoresponsive gas-generating material 13 is to be used in a micropump having fine channels formed in a substrate, and comprises a photo-sensitive acid-generating agent and an acid-sensitive gas-generating agent, and a micropump 10 has the photoresponsive gas-generating material 13 housed therein.Type: ApplicationFiled: March 11, 2009Publication date: January 20, 2011Inventors: Masateru Fukuoka, Kazuki Yamamoto, Yoshinori Akagi, Hiroji Fukui
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Publication number: 20100317538Abstract: This invention provides a measuring apparatus for microanalysis, which can be simply manufactured and can realize a number of analyses and measurements in a small analyte amount and particularly can analyze and measure a number of analytes having different concentrations and different analytes in a simultaneous and easy manner, and a measurement method of microanalysis using the apparatus. The measuring apparatus for microanalysis is characterized by comprising detection parts of m lines and n rows in communication with a micropassage for a waste solution, chambers of m lines and n rows in communication with the respective detection parts through a mixing flow passage, n first micropassages in communication with the respective line chambers through a passive valve, m second micropassages in communication with respective row chambers through a passive valve, and third micropassages in communication with the respective chambers for supplying gas and/or a washing solution.Type: ApplicationFiled: October 18, 2007Publication date: December 16, 2010Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Minoru Seki, Junya Takagi, Kazuki Yamamoto, Yoshinori Akagi