Patents by Inventor Ichiro Hirahara
Ichiro Hirahara 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: 11898131Abstract: To provide a means capable of obtaining further excellent cellular adhesiveness than in a case where a surface of a cell culture substrate (cell culture vessel) is coated using polytetrahydrofurfuryl acrylate (PTHFA). Provided is a cell culture substrate comprising a coating layer on at least one side of a polymer substrate, wherein the coating layer includes a copolymer comprising more than 20% by mole and less than 100% by mole of a structural unit (1) derived from furfuryl (meth)acrylate represented by Formula (1) and more than 0% by mole and less than 80% by mole of a structural unit (2) derived from ethylenically unsaturated monomer having a hydroxyl group (the total of the structural unit (1) and the structural unit (2) is 100% by mole).Type: GrantFiled: August 15, 2019Date of Patent: February 13, 2024Assignee: Terumo Kabushiki KaishaInventors: Takao Anzai, Ichiro Hirahara
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Patent number: 11702638Abstract: This invention is to provide a means capable of obtaining excellent cell proliferation activity without depending on a thickness of a coating layer in a technique of coating a cell culture substrate (cell culture vessel) using a polymer. Provided is a cell culture substrate comprising a coating layer on at least one surface of a polymer substrate, wherein the coating layer includes a copolymer comprising more than 40% by mole and less than 100% by mole of a structural unit (1) derived from carboxyalkyl (meth)acrylate represented by Formula (1) and more than 0% by mole and less than 60% by mole of a structural unit (2) derived from ethylenically unsaturated monomer having a hydroxyl group (the total of the structural unit (1) and the structural unit (2) is 100% by mole).Type: GrantFiled: August 15, 2019Date of Patent: July 18, 2023Assignee: TERUMO KABUSHIKI KAISHAInventors: Takao Anzai, Ichiro Hirahara
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Publication number: 20230160896Abstract: Provided is a means capable of predicting a formation of thrombus or a risk thereof in a medical device performing blood circulation by a pump, by a simple and minimally invasive method. A method for predicting a formation of thrombus or a risk thereof in a medical device performing blood circulation by a pump, wherein it is predicted that thrombus is formed or there is a risk thereof in the medical device when a concentration or expression amount of ADAM28 in a body fluid sample collected from a subject wearing the medical device is elevated compared with a reference value.Type: ApplicationFiled: March 2, 2021Publication date: May 25, 2023Applicant: TERUMO KABUSHIKI KAISHAInventors: Ichiro HIRAHARA, Shinpei FURUKAWA, Koko KUMANO, Hideki SATO
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Publication number: 20230113252Abstract: Provided is a means capable of determining the development of myocarditis or the risk thereof by a simple and minimally invasive method. A method of determining the development of myocarditis or risk thereof, wherein it is determined that myocarditis is developed or there is a risk thereof when a concentration or expression amount of ADAM28 in a body fluid sample collected from a subject is reduced compared with a reference value.Type: ApplicationFiled: March 2, 2021Publication date: April 13, 2023Applicant: TERUMO KABUSHIKI KAISHAInventors: Ichiro HIRAHARA, Kiyoshi SAKATA, Hideki SATO, Hidenori TAKASAKI
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Publication number: 20220073853Abstract: To provide a means capable of providing excellent cell adhesion to a polymer substrate (particularly, a hydrophilic polymer substrate) as compared to the case of performing a surface treatment with polytetrahydrofurfuryl acrylate (PTHFA). Provided is a cell culture substrate comprising a coating layer on at least one side of a polymer substrate, wherein the coating layer includes a copolymer having more than 40% by mole and less than 100% by mole of a structural unit derived from furfuryl (meth)acrylate represented by Formula and more than 0% by mole and less than 60% by mole of a structural unit derived from ethylenically unsaturated monomer having a carboxylic group (the total of the structural unit and the structural unit is 100% by mole).Type: ApplicationFiled: December 18, 2019Publication date: March 10, 2022Applicant: TERUMO KABUSHIKI KAISHAInventors: Takao ANZAI, Ichiro HIRAHARA
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Publication number: 20220049203Abstract: This invention is to provide a means capable of providing excellent cell proliferation activity to a hydrophilic polymer substrate. Provided is a cell culture substrate comprising a coating layer on at least one surface of a hydrophilic polymer substrate, wherein the coating layer includes a polymer comprising a structural unit derived from furfuryl (meth)acrylate represented by Formula, and a ratio of mass of the polymer contained per unit area of the coating layer is more than 2 ?g/cm2.Type: ApplicationFiled: December 18, 2019Publication date: February 17, 2022Applicant: TERUMO KABUSHIKI KAISHAInventors: Takao ANZAI, Ichiro HIRAHARA
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Publication number: 20200056138Abstract: To provide a means capable of obtaining further excellent cellular adhesiveness than in a case where a surface of a cell culture substrate (cell culture vessel) is coated using polytetrahydrofurfuryl acrylate (PTHFA). Provided is a cell culture substrate comprising a coating layer on at least one side of a polymer substrate, wherein the coating layer includes a copolymer comprising more than 20% by mole and less than 100% by mole of a structural unit (1) derived from furfuryl (meth)acrylate represented by Formula (1) and more than 0% by mole and less than 80% by mole of a structural unit (2) derived from ethylenically unsaturated monomer having a hydroxyl group (the total of the structural unit (1) and the structural unit (2) is 100% by mole).Type: ApplicationFiled: August 15, 2019Publication date: February 20, 2020Applicant: TERUMO KABUSHIKI KAISHAInventors: Takao ANZAI, Ichiro HIRAHARA
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Publication number: 20200056155Abstract: This invention is to provide a means capable of obtaining excellent cell proliferation activity without depending on a thickness of a coating layer in a technique of coating a cell culture substrate (cell culture vessel) using a polymer. Provided is a cell culture substrate comprising a coating layer on at least one surface of a polymer substrate, wherein the coating layer includes a copolymer comprising more than 40% by mole and less than 100% by mole of a structural unit (1) derived from carboxyalkyl (meth)acrylate represented by Formula (1) and more than 0% by mole and less than 60% by mole of a structural unit (2) derived from ethylenically unsaturated monomer having a hydroxyl group (the total of the structural unit (1) and the structural unit (2) is 100% by mole).Type: ApplicationFiled: August 15, 2019Publication date: February 20, 2020Applicant: TERUMO KABUSHIKI KAISHAInventors: Takao ANZAI, Ichiro HIRAHARA
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Publication number: 20200056154Abstract: The invention is to provide a means capable of achieving both cellular adhesiveness and antithrombogenicity with balance. Provided is a cell culture substrate comprising a coating layer on at least one side of a polymer substrate, wherein the coating layer includes a copolymer having 5 to 65% by mole of a structural unit (1) derived from alkoxyalkyl (meth)acrylate of Formula (1) and 95 to 35% by mole of a structural unit (2) derived from furfuryl (meth)acrylate of Formula (2) (the total of the structural unit (1) and the structural unit (2) is 100% by mole).Type: ApplicationFiled: August 15, 2019Publication date: February 20, 2020Applicant: TERUMO KABUSHIKI KAISHAInventors: Takao ANZAI, Ichiro HIRAHARA
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Publication number: 20200056137Abstract: The invention is to provide a cell culture substrate excellent in cellular adhesiveness regardless of a shape or design thereof.Type: ApplicationFiled: August 15, 2019Publication date: February 20, 2020Applicant: TERUMO KABUSHIKI KAISHAInventors: Takao ANZAI, Ichiro HIRAHARA
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Publication number: 20140207128Abstract: An ablation device includes a waveguide that guides a pulse laser output from a laser output unit, a laser emitting unit that focuses the pulse laser guided by the waveguide using a lens, emits the pulse laser to a living body tissue, causes multiphoton absorption in a focal position of the pulse laser, and performs ablation on the living body tissue; and a balloon that sets a focus of the pulse laser as the laser emitting unit is positioned at a desired position inside a living body lumen.Type: ApplicationFiled: March 26, 2014Publication date: July 24, 2014Applicant: TERUMO KABUSHIKI KAISHAInventors: Yoichiro Iwase, Ichiro Hirahara, Sayaka Oomori, Ryota Sugimoto