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).

  • Publication number: 20210310945
    Abstract: 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: Application
    Filed: July 31, 2019
    Publication date: October 7, 2021
    Applicants: SEKISUI CHEMICAL CO., LTD., UNIVERSITY PUBLIC CORPORATION OSAKA
    Inventors: Yoshinori AKAGI, Motohiko ASANO, Jun DOI, Tatsuro ENDO
  • Publication number: 20210239690
    Abstract: 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: Application
    Filed: April 22, 2021
    Publication date: August 5, 2021
    Inventors: Yoshinori Akagi, Nobuhiko Inui, Kazuhiko Imamura, Takamasa Kouno, Shigeru Nomura, Tatsuro Endo
  • Patent number: 11016087
    Abstract: 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: Grant
    Filed: February 9, 2017
    Date of Patent: May 25, 2021
    Assignees: SEKISUI CHEMICAL CO., LTD., UNIVERSITY PUBLIC CORPORATION OSAKA
    Inventors: Yoshinori Akagi, Nobuhiko Inui, Kazuhiko Imamura, Takamasa Kouno, Shigeru Nomura, Tatsuro Endo
  • Patent number: 10731062
    Abstract: 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: Grant
    Filed: August 30, 2013
    Date of Patent: August 4, 2020
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Shigeru Nomura, Yoshinori Akagi, Shuichiro Matsumoto
  • Publication number: 20190041337
    Abstract: 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: Application
    Filed: February 9, 2017
    Publication date: February 7, 2019
    Inventors: Yoshinori Akagi, Nobuhiko Inui, Kazuhiko Imamura, Takamasa Kouno, Shigeru Nomura, Tatsuro Endo
  • Publication number: 20150232714
    Abstract: 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: Application
    Filed: August 30, 2013
    Publication date: August 20, 2015
    Inventors: Shigeru Nomura, Yoshinori Akagi, Shuichiro Matsumoto
  • Patent number: 8986630
    Abstract: 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: Grant
    Filed: September 25, 2012
    Date of Patent: March 24, 2015
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Yoshinori Akagi, Shigeru Nomura
  • Patent number: 8771612
    Abstract: 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: Grant
    Filed: March 11, 2009
    Date of Patent: July 8, 2014
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Masateru Fukuoka, Kazuki Yamamoto, Yoshinori Akagi, Hiroji Fukui
  • Publication number: 20140161687
    Abstract: 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: Application
    Filed: September 25, 2012
    Publication date: June 12, 2014
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yoshinori Akagi, Shigeru Nomura
  • Publication number: 20140134075
    Abstract: 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: Application
    Filed: January 22, 2014
    Publication date: May 15, 2014
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Masateru Fukuoka, Kazuki Yamamoto, Yoshinori Akagi, Hiroji Fukui
  • Patent number: 8353679
    Abstract: 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: Grant
    Filed: March 17, 2009
    Date of Patent: January 15, 2013
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Kazuki Yamamoto, Masateru Fukuoka, Yoshinori Akagi, Hiroji Fukui
  • Patent number: 8197773
    Abstract: 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: Grant
    Filed: March 11, 2009
    Date of Patent: June 12, 2012
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Masateru Fukuoka, Kazuki Yamamoto, Yoshinori Akagi, Hiroji Fukui
  • Patent number: 8058072
    Abstract: 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: Grant
    Filed: October 18, 2007
    Date of Patent: November 15, 2011
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Minoru Seki, Junya Takagi, Kazuki Yamamoto, Yoshinori Akagi
  • Publication number: 20110129392
    Abstract: 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: Application
    Filed: March 17, 2009
    Publication date: June 2, 2011
    Inventors: Kazuki Yamamoto, Masateru Fukuoka, Yoshinori Akagi, Hiroji Fukui
  • Publication number: 20110044863
    Abstract: 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: Application
    Filed: March 11, 2009
    Publication date: February 24, 2011
    Inventors: Masateru Fukuoka, Kazuki Yamamoto, Yoshinori Akagi, Hiroji Fukui
  • Publication number: 20110014096
    Abstract: 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: Application
    Filed: March 11, 2009
    Publication date: January 20, 2011
    Inventors: Masateru Fukuoka, Kazuki Yamamoto, Yoshinori Akagi, Hiroji Fukui
  • Publication number: 20100317538
    Abstract: 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: Application
    Filed: October 18, 2007
    Publication date: December 16, 2010
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Minoru Seki, Junya Takagi, Kazuki Yamamoto, Yoshinori Akagi