Patents by Inventor Hiroko Hanzawa

Hiroko Hanzawa 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: 11926845
    Abstract: A novel cell culture method for inducing differentiation of a pluripotent stem cell into trophoblast and an automatic culture apparatus therefor includes: a first step of culturing the pluripotent stem cell in a presence of a ROCK inhibitor during a first time period; a second step of culturing the pluripotent stem cell, which has been subjected to the first step, without the ROCK inhibitor during a second time period following the first time period; and a step of culturing the pluripotent stem cell, which has been subjected to the second step, in the presence of the ROCK inhibitor during a third time period following the second time period, in which the pluripotent stem cell is cultured in a state of being adhered to a cell culture substrate including a planar mesh through the first to third time periods.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: March 12, 2024
    Assignee: Hitachi, Ltd.
    Inventors: Yuki Niimi, Hiroko Hanzawa, Maiko Tanabe, Kunio Ohyama, Shizu Takeda
  • Patent number: 11566232
    Abstract: The purpose of the invention is to provide novel cell culture substrates, cell culture vessels, and methods for cell culture. A cell culture substrate having a planar mesh structure, the substrate being coated with a polymer, is provided. Cells are cultured in a cell culture vessel having this substrate.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: January 31, 2023
    Assignees: HITACHI, LTD., THE UNIVERSITY OF TOKYO
    Inventors: Maiko Tanabe, Shizu Takeda, Masahiro Okanojo, Hiroko Hanzawa, Masao Washizu, Kennedy Omondi Okeyo
  • Publication number: 20210301248
    Abstract: Provided are an evaluator including an analysis unit that evaluates a differentiation level of a cultured cell on the basis of a content of a component in a culture supernatant of the cultured cell, and an automatic cell culture system including the evaluator and an automatic culture device.
    Type: Application
    Filed: November 18, 2020
    Publication date: September 30, 2021
    Inventors: Hikaru SAITO, Midori KATO, Kakuro HIRAI, Masaharu KIYAMA, Kunio OHYAMA, Hiroko HANZAWA, Shizu TAKEDA
  • Publication number: 20210284959
    Abstract: A novel cell culture method for inducing differentiation of a pluripotent stem cell into trophoblast and an automatic culture apparatus therefor includes: a first step of culturing the pluripotent stem cell in a presence of a ROCK inhibitor during a first time period; a second step of culturing the pluripotent stem cell, which has been subjected to the first step, without the ROCK inhibitor during a second time period following the first time period; and a step of culturing the pluripotent stem cell, which has been subjected to the second step, in the presence of the ROCK inhibitor during a third time period following the second time period, in which the pluripotent stem cell is cultured in a state of being adhered to a cell culture substrate including a planar mesh through the first to third time periods.
    Type: Application
    Filed: January 29, 2021
    Publication date: September 16, 2021
    Inventors: Yuki NIIMI, Hiroko HANZAWA, Maiko TANABE, Kunio OHYAMA, Shizu TAKEDA
  • Patent number: 10947490
    Abstract: A liquid delivery device includes a first and second container for a first and second liquid; a third container for receiving a first and second liquid; a fourth container into which a first and second liquid are discharged; a fifth container for a third liquid; a first liquid delivery tube for delivering a first liquid; a second liquid delivery tube for delivering a second liquid; a third liquid delivery tube connected to the first and second liquid delivery tube; a first liquid delivery pump on the third liquid delivery tube; a fourth liquid delivery tube for discharging a first liquid contained in the third container and delivering a third liquid to the third container; a fifth liquid delivery tube connected to the fourth liquid delivery tube; a sixth liquid delivery tube connected to the fourth liquid delivery tube; and a second liquid delivery pump on the fourth liquid delivery tube.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: March 16, 2021
    Assignee: HITACHI, LTD.
    Inventors: Hikaru Saito, Masaharu Kiyama, Midori Kato, Kunio Ohyama, Guangbin Zhou, Hiroko Hanzawa, Shizu Takeda
  • Publication number: 20210009935
    Abstract: An object of the invention is to provide a cell culture monitoring device capable of monitoring the number of cells during culture and a cell culture system. The cell culture monitoring device for monitoring proliferation of cells includes: a detection unit configured to detect particles of exosomes in culture supernatant; and an analysis unit configured to calculate the number of cells based on an obtained detection result. The cell culture system includes the cell culture monitoring device and an automatic culture device.
    Type: Application
    Filed: July 9, 2020
    Publication date: January 14, 2021
    Inventors: Hikaru SAITO, Kakuro HIRAI, Midori KATO, Masaharu KIYAMA, Kunio OHYAMA, Hiroko HANZAWA, Shizu TAKEDA
  • Publication number: 20190085299
    Abstract: The purpose of the invention is to provide novel cell culture substrates, cell culture vessels, and methods for cell culture. A cell culture substrate having a planar mesh structure, the substrate being coated with a polymer, is provided. Cells are cultured in a cell culture vessel having this substrate.
    Type: Application
    Filed: September 6, 2018
    Publication date: March 21, 2019
    Inventors: Maiko TANABE, Shizu TAKEDA, Masahiro OKANOJO, Hiroko HANZAWA, Masao WASHIZU, Kennedy Omondi OKEYO
  • Publication number: 20180362915
    Abstract: A liquid delivery device includes a first and second container for a first and second liquid; a third container for receiving a first and second liquid; a fourth container into which a first and second liquid are discharged; a fifth container for a third liquid; a first liquid delivery tube for delivering a first liquid; a second liquid delivery tube for delivering a second liquid; a third liquid delivery tube connected to the first and second liquid delivery tube; a first liquid delivery pump on the third liquid delivery tube; a fourth liquid delivery tube for discharging a first liquid contained in the third container and delivering a third liquid to the third container; a fifth liquid delivery tube connected to the fourth liquid delivery tube; a sixth liquid delivery tube connected to the fourth liquid delivery tube; and a second liquid delivery pump on the fourth liquid delivery tube.
    Type: Application
    Filed: February 14, 2018
    Publication date: December 20, 2018
    Inventors: Hikaru SAITO, Masaharu KIYAMA, Midori KATO, Kunio OHYAMA, Guangbin ZHOU, Hiroko HANZAWA, Shizu TAKEDA
  • Patent number: 9952213
    Abstract: It is intended to evaluate an ischemic heart disease with high accuracy by convenient operation. The method for evaluating an ischemic heart disease according to the present invention comprises the steps of: assaying complement factor H and/or complement factor D in a sample derived from the blood of a test subject; and comparing the concentration of the complement factor H and/or the concentration of the complement factor D assayed in the preceding step with a reference value(s), wherein it is determined that the seriousness of the ischemic heart disease is high when the concentration falls below the reference value.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: April 24, 2018
    Assignee: HITACHI, LTD.
    Inventors: Hiroko Hanzawa, Takeshi Sakamoto, Yuji Kuge
  • Patent number: 9575074
    Abstract: The present invention provides a method and a means for evaluating atherosclerotic lesions by identifying a protein (marker protein) group, the expression level of which varies according to the progression of the atherosclerotic lesion, and using the proteins. Specifically, the present invention relates to a method for evaluating atherosclerotic lesions, comprising the steps of detecting a marker protein exhibiting an expression pattern (expression variation) characteristic at a specific disease stage of atherosclerotic lesions in a subject, and evaluating the atherosclerotic lesions in the subject based on the detection result.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: February 21, 2017
    Assignees: Hitachi, Ltd., National University Corporation Hokkaido University
    Inventors: Takeshi Sakamoto, Hiroko Hanzawa, Naomi Manri, Yuji Kuge
  • Patent number: 9421284
    Abstract: A reaction container in which to mix a first chemical compound with a second chemical compound has a main body and a lid member formed oppositely on a top face side of the main body; a flow channel on the top face of the main body; and a labeling agent solidification section at an intermediate section of the flow channel to remove a solvent in a solution of the second chemical compound and solidify the second chemical compound. First and second chemical compound supply sections and a mixture discharge section are formed on the upstream and downstream sides of the labeling agent solidification section, respectively. The reactor is provided with a liquid sending unit to supply the first and second chemical compounds and reciprocally send a solution of the first chemical compound to an upper part of the second chemical compound solidified at the solidification section.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: August 23, 2016
    Assignee: HITACHI, LTD.
    Inventors: Nami Sugita, Naomi Manri, Wataru Takeuchi, Yuichi Morimoto, Hiroko Hanzawa
  • Publication number: 20160061846
    Abstract: The present invention provides a method and a means for evaluating atherosclerotic lesions by identifying a protein (marker protein) group, the expression level of which varies according to the progression of the atherosclerotic lesion, and using the proteins. Specifically, the present invention relates to a method for evaluating atherosclerotic lesions, comprising the steps of detecting a marker protein exhibiting an expression pattern (expression variation) characteristic at a specific disease stage of atherosclerotic lesions in a subject, and evaluating the atherosclerotic lesions in the subject based on the detection result.
    Type: Application
    Filed: November 9, 2015
    Publication date: March 3, 2016
    Inventors: Takeshi SAKAMOTO, Hiroko HANZAWA, Naomi MANRI, Yuji KUGE
  • Publication number: 20150335769
    Abstract: A reaction container in which to mix a first chemical compound with a second chemical compound has a main body and a lid member formed oppositely on a top face side of the main body; a flow channel on the top face of the main body; and a labeling agent solidification section at an intermediate section of the flow channel to remove a solvent in a solution of the second chemical compound and solidify the second chemical compound. First and second chemical compound supply sections and a mixture discharge section are formed on the upstream and downstream sides of the labeling agent solidification section, respectively. The reactor is provided with a liquid sending unit to supply the first and second chemical compounds and reciprocally send a solution of the first chemical compound to an upper part of the second chemical compound solidified at the solidification section.
    Type: Application
    Filed: December 26, 2012
    Publication date: November 26, 2015
    Inventors: Nami SUGITA, Naomi MANRI, Wataru TAKEUCHI, Yuichi MORIMOTO, Hiroko HANZAWA
  • Patent number: 9175346
    Abstract: Arteriosclerosis induces cerebral infarction and myocardial infarction. A multi-marker (a group of protein markers) that assesses the accurate pathogenesis of arteriosclerosis and enables the selection of an adequate treatment method for arteriosclerosis and prediction of the progression of arteriosclerosis, and an evaluation method for the diagnosis, prevention, and treatment of arteriosclerosis that uses said marker group as an indicator have been sought. The present invention relates to A method for evaluation of arteriosclerosis comprising the steps of (a) measuring the expression of von Willebrand factor and/or complement factor D in a sample derived from a subject, (b) measuring the expression of complement component C8 and/or vitamin K-dependent protein Z in the sample derived from the subject, and (c) evaluating arteriosclerosis in the subject on the basis of the results from (a) and (b).
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: November 3, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Hiroko Hanzawa, Takeshi Sakamoto, Naomi Manri, Yuji Kuge
  • Publication number: 20150105291
    Abstract: It is intended to evaluate an ischemic heart disease with high accuracy by convenient operation. The method for evaluating an ischemic heart disease according to the present invention comprises the steps of: assaying complement factor H and/or complement factor D in a sample derived from the blood of a test subject; and comparing the concentration of the complement factor H and/or the concentration of the complement factor D assayed in the preceding step with a reference value(s), wherein it is determined that the seriousness of the ischemic heart disease is high when the concentration falls below the reference value.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 16, 2015
    Inventors: Hiroko HANZAWA, Takeshi SAKAMOTO, Yuji KUGE
  • Patent number: 8603829
    Abstract: A method is provided for diagnosing or predicting atherosclerosis with the use of, as indicators, markers (factors) that allow early detection and progression prediction of the disease and a method for evaluating preventive or therapeutic effects. In one form, the present method includes detecting CD166 (ALCAM) level in a sample of a subject such as human. Another aspect of the present method includes evaluating preventive or therapeutic effects of a compound on atherosclerosis. A kit and an apparatus for carrying out such methods is also provided.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: December 10, 2013
    Assignee: Hitachi Ltd.
    Inventors: Yuji Kuge, Hiroko Hanzawa, Takeshi Sakamoto, Naomi Manri
  • Publication number: 20130302821
    Abstract: The present invention provides a method and a means for evaluating atherosclerotic lesions by identifying a protein (marker protein) group, the expression level of which varies according to the progression of the atherosclerotic lesion, and using the proteins. Specifically, the present invention relates to a method for evaluating atherosclerotic lesions, comprising the steps of detecting a marker protein exhibiting an expression pattern (expression variation) characteristic at a specific disease stage of atherosclerotic lesions in a subject, and evaluating the atherosclerotic lesions in the subject based on the detection result.
    Type: Application
    Filed: November 17, 2011
    Publication date: November 14, 2013
    Applicants: National Univeristy Corporation Hokkaido University, Hitachi Ltd.
    Inventors: Takeshi Sakamoto, Hiroko Hanzawa, Naomi Manri, Yuji Kuge
  • Publication number: 20130040851
    Abstract: Arteriosclerosis induces cerebral infarction and myocardial infarction. A multi-marker (a group of protein markers) that assesses the accurate pathogenesis of arteriosclerosis and enables the selection of an adequate treatment method for arteriosclerosis and prediction of the progression of arteriosclerosis, and an evaluation method for the diagnosis, prevention, and treatment of arteriosclerosis that uses said marker group as an indicator have been sought. The present invention relates to A method for evaluation of arteriosclerosis comprising the steps of (a) measuring the expression of von Willebrand factor and/or complement factor D in a sample derived from a subject, (b) measuring the expression of complement component C8 and/or vitamin K-dependent protein Z in the sample derived from the subject, and (c) evaluating arteriosclerosis in the subject on the basis of the results from (a) and (b).
    Type: Application
    Filed: April 19, 2011
    Publication date: February 14, 2013
    Applicant: Hitachi, Ltd.
    Inventors: Hiroko Hanzawa, Takeshi Sakamoto, Naomi Manri, Yuji Kuge
  • Patent number: 8043852
    Abstract: The present invention provides a monoclonal antibody displaying excellent specificity against heparan sulfate saccharide chains for the analysis of heparan sulfate saccharide chains specific to dentin. The invention also provides a method of evaluating reproductive dentin using the monoclonal antibody. The anti-heparan sulfate monoclonal antibody reacts against dentin-derived heparan sulfate and in particular the anti-heparan sulfate monoclonal antibody reacts strongly and specifically with uncalcified predentin regions. In the method of evaluating dentin, the antibody is reacted against an isolated dentin-derived sample and the reaction is used in order to evaluate the development of dentin.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: October 25, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Akiko Hisada, Ryosuke Takahashi, Hiroko Hanzawa
  • Publication number: 20110065199
    Abstract: Since atherosclerosis induces cerebral infarction and myocardial infarction, a method for diagnosing or predicting atherosclerosis with the use of, as indicators, markers (factors) that allow early detection and progression prediction of the disease and a method for evaluating preventive or therapeutic effects have been awaited. This invention provides a method for diagnosing or predicting atherosclerosis which comprises detecting CD166 (ALCAM) level in a sample of a subject such as human, a method for evaluating preventive or therapeutic effects of a compound on atherosclerosis, and a kit and an apparatus for carrying out such methods.
    Type: Application
    Filed: August 10, 2010
    Publication date: March 17, 2011
    Inventors: Yuji Kuge, Hiroko Hanzawa, Takeshi Sakamoto, Naomi Manri